JP2010234101A - Cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooker which can confirm the condition of water (water volume) automatically in a water tank, can change heating control according to the condition, and can heat the water in the water tank without the time and effort to adjust. <P>SOLUTION: The cooker includes a water tank 7 which condenses the steam given off from food in a rice kettle 2 during cooking and recovers generated water, a water level sensor 10 which detects the amount of water in the water tank 7, and a control part 12 which controls the heating of a heating means 5. The control part 12 compares the amount of water with the threshold level in the water tank 7, both being detected by the water level sensor 10, changes the heating pattern of the heating means 5 when the amount of water is above the threshold level, and reduces the amount of steam given off from the food in the rice kettle 2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to, for example, a rice cooker, and more particularly to a cooking device that collects steam generated during cooking.

  A conventional rice cooker is detachably housed in the rice cooker body, a container having a water tank, one end is attached through the inner lid of the inner pot, and the other end is connected to the communication hole of the container. Some have a steam inlet pipe. This rice cooker guides the steam in the inner pot generated during rice cooking into the container through the steam introduction pipe, guides the steam into the water tank and condenses it with cooling water (for example, see Patent Document 1). .

Japanese Utility Model Publication No. 60-106532 (page 2-3, Fig. 2)

  In the conventional rice cooker described above, it is necessary to check how much water is in the water tank of the container before starting the rice cooking, and it is the minimum necessary to condense the steam in the water tank. If the amount of water is not contained, the water temperature in the water tank rises in a short time, making it difficult to recover the steam, and if cooking is done near full water, there is a risk of leakage from the water tank. . Moreover, when the water in a water tank has become high temperature before the start of rice cooking, the condensation rate of the steam in a water tank falls and a vapor | steam may leak from a container. As described above, depending on the state of the water in the water tank, it is difficult to heat the steam while recovering it, so there is a problem that the water in the water tank must be adjusted before heating.

  The present invention has been made to solve the above-described problems, and automatically checks the state of water in the water tank (the amount of water) and changes the heating control according to the state, thereby An object of the present invention is to provide a heating cooker that can be heated without the trouble of adjusting water.

  A heating cooker according to the present invention condenses steam generated from food in a container during cooking, a container for food cooking that is detachably housed in the cooker body, heating means for heating the container, and the like. A water tank for collecting the water generated in the water tank, a water amount detection means for detecting the amount of water in the water tank, and a control means for controlling the heating of the heating means, the control means in the water tank detected by the water amount detection means The amount of water is compared with the threshold, and the heating pattern of the heating means is changed when the amount of water is equal to or greater than the threshold.

  In the present invention, for example, the amount of water in the aquarium detected by the water amount detection means immediately before cooking is compared with the threshold value, and when the water amount is equal to or greater than the threshold value, the heating pattern of the heating means is changed, for example, generated from food in the container Since the amount of steam to be reduced is reduced, it is possible to recover the water generated by condensing the steam without causing the steam to leak from the aquarium, and the cooking can be carried out to the end without interruption. It has the effect of being able to.

It is a side view which shows the inside of the rice cooker of the heating cooker which concerns on Embodiment 1 of this invention. It is a figure which shows the correlation of the water temperature in a water tank, and the amount of water. 3 is a flowchart illustrating an operation of heating control in the first embodiment. 10 is a flowchart showing an operation of heating control in the second embodiment. It is a side view which shows the inside of the rice cooker of the heating cooker which concerns on Embodiment 3 of this invention. 10 is a flowchart showing an operation of heating control in the third embodiment. It is a side view which shows the inside of the rice cooker of the heating cooker which concerns on Embodiment 4 of this invention. 10 is a flowchart showing heating control and cooling operations in the fourth embodiment. 10 is a flowchart showing an operation of heating control in the fifth embodiment. It is a side view which shows the inside of the rice cooker of the heating cooker which concerns on Embodiment 6 of this invention. It is a side view which shows the example of discharge | release of the vapor | steam at the time of valve opening in the rice cooker shown in FIG.

Embodiment 1 FIG.
1 is a side view showing the inside of, for example, a rice cooker of a heating cooker according to Embodiment 1 of the present invention.
In FIG. 1, a rice cooker 2 for cooking food is detachably housed inside a rice cooker body 1, and a lid 3 whose one end is pivotally supported to be openable and closable is attached to the top of the rice cooker body 1. An inner lid 4 is detachably attached to the lid 3, and a steam exhaust pipe 6 (steam exhaust passage) having one end detachably attached to the central portion of the inner lid 4 is disposed. When the lid 3 covers the upper surface opening of the rice cooker body 1, the inner lid 4 closes the upper surface opening of the rice cooker 2 and seals the inside. Above the bottom of the rice cooker main body 1, for example, a heating means 5 configured by a heater or an induction heating coil for heating the rice cooker 2 is arranged, and a water tank 7 is attached to and detached from the rice cooker main body 1 beside the rice cooker 2. It is installed as possible.

  The water tank 7 is made of an insulating material such as plastic having good heat conduction, for example, and has a water tank cover 7a that covers the upper surface opening in a detachable manner, and a steam introduction pipe 7b (steam discharge passage) whose upper end is fixed to the water tank cover 7a. ). The upper end of the steam introduction pipe 7 b is detachably connected to the other end of the steam discharge pipe 6 disposed on the lid 3. When the lid 3 is opened, the steam discharge pipe 6 is separated from the steam introduction pipe 7b, and when the lid 3 is closed, the steam discharge pipe 6 and the steam introduction pipe 7b are connected in a sealed state. The steam discharge pipe 6 and the steam introduction pipe 7b lead the steam in the rice cooker 2 generated during cooking to the water 8 (recovered water) stored in the water tank 7, and the water tank 7 includes the steam introduction pipe 7b. The steam that flows into the water is condensed with water and stored as recovered water 8.

On the side surface of the water tank 7, for example, a water level sensor 10 which is a water amount detecting means and a temperature sensor 11 which is a water temperature detecting means are arranged. The water level sensor 10 described above is composed of, for example, a capacitance sensor, and its detection electrode is disposed close to the side surface of the water tank 7, and generates a voltage proportional to the capacitance between the virtual ground and the virtual ground. That is, the voltage increases as the water level of the recovered water 8 in the water tank 7 increases. The installation position (height) of the water level sensor 10 is such that when the recovered water 8 in the water tank 7 is at that height and is heated and terminated by normal heating control, the recovered water 8 may overflow from the water tank 7. This is the position where the amount of water (water level) is. Although it has been described that the water level sensor 10 is used as the water amount detecting means, the water amount in the water tank 7 may be detected using a weight sensor that detects the weight of the water tank 7 instead. The water amount detection means may detect the water amount by using a plurality of optical water level sensors capable of detecting the presence or absence of water at a specific position.
Incidentally, the temperature sensor 11 is configured to detect the temperature of the wall surface of the aquarium 7, but the wall surface temperature of the aquarium 7 and the water in the aquarium 7 are substantially the same temperature. It is detected as the water temperature inside. Alternatively, the temperature of the water tank 7 may be directly measured by submerging in the water tank 7 using a temperature sensor having water resistance.

The control unit 12 includes, for example, a microcomputer, and has, as data, a threshold value T0 of the water temperature T detected by the temperature sensor 11 and a threshold value V0 of the water amount V detected by the water level sensor 10. The threshold value V0 is a value set corresponding to the installation position of the water level sensor 10 described above. For example, the control unit 12 compares the water amount V detected by the water level sensor 10 when detecting an ON operation of a heating switch (not shown) with the threshold value V0, and when the water amount V is equal to or higher than the threshold value V0, The collection water 8 in the water tank 7 is urged to drain through a liquid crystal display (not shown). This notification has no influence on cooking (for example, stewed cooking, soup cooking, etc.) before entering the heating control, so that the drainage of the recovered water 8 is promoted. When the water temperature T of the water tank 7 detected by the temperature sensor 11 is lower than the threshold value T0 when the water amount V is lower than the threshold value V0, the normal mode is selected, and when the water amount V is lower than the threshold value V0. When the water temperature T is equal to or higher than the threshold value T0, the steam less mode is selected. The normal mode is a mode in which the heating means 5 is heated and controlled with, for example, standard power set in the rice cooker, and the steam low mode generates less steam from the food in the rice cooker 2 than the normal mode. In other words, the heating control is performed by changing the heating pattern of the heating means 5 so that the power is reduced.
Here, the threshold value T0 of the water temperature T will be described with reference to FIG. FIG. 2 is a diagram showing the correlation between the water temperature in the water tank and the amount of water. The horizontal axis represents the initial amount of water (mL) in the water tank 7, and the vertical axis represents the water temperature (° C.) in the water tank after the steam treatment. When the initial amount of water is V1 or less, the water temperature reaches 100 ° C., so that the steam generated during cooking cannot be condensed. And as shown in figure, when considering the heat resistance of the material which comprises the water tank 7, for example, the heat resistance of the resin material, the threshold value T0 of the water temperature of the water tank 7 shall be 90 degrees C or less, and also at the time of the cleaning of the water tank 7 after cooking. When considering prevention of burns, it is desirable that the temperature be 60 ° C. or lower.

Next, the operation will be described with reference to FIG. FIG. 3 is a flowchart showing the operation of heating control in the first embodiment.
When detecting the ON operation of the heating switch (S1), the control unit 12 first reads the water amount V of the water tank 7 detected by the water level sensor 10 and compares it with the threshold value V0, which is not shown in FIG. When the amount of water V is greater than or equal to the threshold value V0, drainage of the recovered water 8 in the water tank 7 is promoted via the buzzer and the liquid crystal display as described above. When the amount of water V is lower than the threshold value V0, the water temperature T of the water tank 7 detected by the temperature sensor 11 is read and compared with the threshold value T0 (S2). When the water temperature T is lower than the threshold value T0, the normal mode is selected (S3), and the heating means 5 is heated by normal heating control (S4). Then, it is determined whether or not a predetermined time necessary for cooking is passed (S5). When the predetermined time has not passed, the heating control in the normal mode is continued (S4, S5), and the predetermined time has passed. In some cases, the heating control in the normal mode is terminated, and a notification to that effect is given via the buzzer and the liquid crystal display (S6).

  When the water temperature T of the water tank 7 is equal to or higher than the threshold value T0 (S2), the steam less mode is selected (S7), and the heating pattern of the heating means 5 is reduced so that the amount of steam generated from the food in the rice cooker 2 is reduced. Is changed to control the heating (S8). Then, it is determined whether or not a predetermined time required for cooking has passed (S9). When the predetermined time has not passed, the heating control in the steam less mode is continued (S8, S9), and the predetermined time has passed. If so, the heating control in the steam less mode is terminated, and a notification to that effect is given via the buzzer and the liquid crystal display (S6). The predetermined time in the steam less mode is set longer than the predetermined time in the normal mode.

  As described above, according to the first embodiment, when the water temperature T is equal to or higher than the threshold value T0, the steam less mode is selected so that the amount of steam generated from the food in the rice cooker 2 is reduced. Since the heating pattern is changed and heating control is performed, even if the water temperature T of the water tank 7 is high and the steam condensation rate is low, heating is performed without the need to adjust the temperature of the water 8 because the amount of steam is small. It becomes possible. In addition, by providing a mode with less steam, steam leakage from the rice cooker body 1 can be suppressed during cooking, so the walls near the installation of the rice cooker body 1 are dewed, dirty, damaged or leaked. It is possible to prevent the user from being burned by the steam.

Embodiment 2. FIG.
In the first embodiment, when the water temperature T of the water tank 7 is equal to or higher than the threshold value T0, the heating control is changed to the steam low mode. However, in the second embodiment, the water temperature T is detected after the standby time by the reservation setting has elapsed. In comparison with the threshold value T0, when the water temperature T is equal to or higher than the threshold value T0, the heating control (heating pattern) in the steam-less mode is changed. In addition, since the rice cooker of the heating cooker of Embodiment 2 is the structure similar to Embodiment 1 except the control part 12, it demonstrates using FIG.

  The control unit 12 according to the second embodiment includes a microcomputer as described above, and has, as data, a threshold value T0 of the water temperature T detected by the temperature sensor 11 and a threshold value V0 of the water amount V detected by the water level sensor 10. . For example, when detecting an ON operation of a reservation switch (not shown), the control unit 12 compares the water amount V detected by the water level sensor 10 with the threshold value V0, and when the water amount V is lower than the threshold value V0, the current time And the time immediately before starting cooking is calculated from the heating end time set in the reservation and the time required for cooking, and the waiting time until that time is integrated. Then, when the standby time has elapsed, the water temperature T is compared with the threshold value T0, and the normal mode or the steam less mode is selected based on the result. Further, when the water amount V when the reservation switch is detected is equal to or greater than the threshold value V0, drainage of the recovered water 8 in the water tank 7 is urged through a buzzer and a liquid crystal display. As a result of this notification, when the water amount V is lower than the threshold value V0, as described above, the standby time is obtained from the heating end time and integrated, and when the standby time has elapsed, the water temperature T is compared with the threshold value T0, Similarly, the normal mode or the mode with less steam is selected based on the comparison result.

Next, the operation will be described with reference to FIG. FIG. 4 is a flowchart showing the heating control operation in the second embodiment.
When detecting the ON operation of the reservation switch (S11), the control unit 12 first reads the water amount V of the water tank 7 detected by the water level sensor 10 and compares it with the threshold value V0. When the amount of water V is greater than or equal to the threshold value V0, drainage of the recovered water 8 in the water tank 7 is promoted via a buzzer and a liquid crystal display. Further, when the water amount V is lower than the threshold value V0 or when the water amount V becomes lower than the threshold value V0 due to the drainage prompt, as described above, the standby time is calculated from the heating end time set in the reservation. Integration is performed (S12, S13). Then, when the standby time has elapsed (S13), the water temperature T of the water tank 7 detected by the temperature sensor 11 is read and compared with a threshold value T0 (S14). The water temperature T and the threshold value T0 are compared after the standby time has elapsed according to the reservation setting, even if the water temperature T when the reservation switch is turned on is lower than the threshold value T0 in an environment where it is exposed to summer light or direct sunlight. This is because the water temperature T of the water tank 7 rises during the accumulation of the standby time, and the water temperature T may be higher than the threshold value T0 immediately before the start of cooking.

  When the water temperature T after the standby time has elapsed is lower than the threshold value T0, the normal mode is selected (S15), and the heating means 5 is heated by normal heating control (S16). Then, it is determined whether or not a predetermined time necessary for cooking is passed (S17). When the predetermined time has not passed, the heating control in the normal mode is continued (S16, S17), and the predetermined time has passed. At that time, the heating control in the normal mode is terminated, and a notification to that effect is given via the buzzer and the liquid crystal display (S18).

  When the water temperature T after the elapse of the standby time is equal to or higher than the threshold T0, the steam less mode is selected (S19), and the heating pattern of the heating means 5 is set so that the amount of steam generated from the food in the rice cooker 2 is reduced. Change and control the heating (S20). Then, it is determined whether or not a predetermined time required for cooking has passed (S21). When the predetermined time has not passed, the heating control in the steam less mode is continued (S20, S21), and the predetermined time has passed. If so, the heating control in the steam less mode is terminated, and the fact is notified through the buzzer and the liquid crystal display as described above (S18). As described above, the predetermined time in the steam less mode is set longer than the predetermined time in the normal mode.

  As described above, according to the second embodiment, when the reservation switch is turned ON, the water temperature T during the accumulation of the standby time is compared by comparing the water temperature T of the water tank 7 with the threshold value T0 after the standby time by the reservation setting has elapsed. It becomes possible to control the heating of the heating means 5 as T rises.

  In addition, when only the heating control function of the normal mode is provided, if the water temperature T of the water tank 7 is high, it is determined that the heating is impossible and the reservation becomes invalid, or the water temperature T is heated while the water temperature T is high. Although there is a risk that the steam leaks, the provision of the steam less mode makes it possible to heat the heating means 5 without invalidating the reservation and without the risk of steam leakage.

Embodiment 3 FIG.
FIG. 5: is a side view which shows the inside of the rice cooker of the heating cooker which concerns on Embodiment 3 of this invention. In addition, the same code | symbol is attached | subjected to the same or equivalent part as Embodiment 1 demonstrated in FIG. 1, and description is abbreviate | omitted.
In FIG. 5, a cooling device 9 (cooling means) is composed of, for example, a Peltier element or a fan, is mounted on the bottom of the water tank 7, and cools the recovered water 8 in the water tank 7 when driven by a control unit 12 b described later. . The control unit 12a has, as data, a threshold value T0 of the water temperature T detected by the temperature sensor 11 and a threshold value V0 of the water amount V detected by the water level sensor 10. As described above, when the water amount V detected by the water level sensor 10 is greater than or equal to the threshold value V0, the control unit 12a drains the recovered water 8 in the water tank 7 via a buzzer and a liquid crystal display (not shown). Is encouraged. When the water temperature T of the water tank 7 detected by the temperature sensor 11 is lower than the threshold value T0, the normal mode is selected, and when the water temperature T is equal to or higher than the threshold value T0, the steam less mode is selected, While performing the heating control in the less mode, the cooling device 9 is driven to cool the recovered water 8 in the water tank 7, and when the water temperature T becomes lower than the threshold value T0, the driving of the cooling device 9 is stopped. That is, in the steam low mode, the water temperature T of the water tank 7 is set not to exceed the threshold value T0.

Next, the operation will be described with reference to FIG. FIG. 6 is a flowchart showing heating control and cooling operations in the third embodiment. In addition, about the operation | movement of the heating control in normal mode (S33-S36), since it is the same as that of S3-S6 shown in FIG. 3, description is abbreviate | omitted.
When the controller 12a detects the water temperature T equal to or higher than the threshold value T0 in S32 (S32), the steam mode 5 is selected (S37), and the heating means 5 is set so that the amount of steam generated from the food in the rice cooker 2 is reduced. The heating pattern is changed to control the heating (S38). Then, it is determined whether or not a predetermined time necessary for cooking is passed (S39), and when the predetermined time has not passed, the water temperature T of the water tank 7 and the threshold value T0 are compared (S40). When the heating pattern is changed, since the water temperature T is equal to or higher than the threshold value T0, the cooling device 9 is driven (S41), the recovered water 8 in the water tank 7 is cooled, and the heating control in the steam less mode is continued. When the water temperature T becomes lower than the threshold value T0 before the predetermined time has elapsed, the driving of the cooling device 9 is stopped and the heating control in the steam less mode is continued (S38, S39). If the predetermined time has elapsed while repeating this, the heating control in the steam low mode is terminated and a notification to that effect is given via the buzzer and the liquid crystal display (S36).

  As described above, according to the third embodiment, when the heating control of the heating unit 5 is started in the steam less mode, or when the heating control in the steam less mode is measured, the water temperature T is equal to or higher than the threshold value T0. Since the cooling device 9 is driven to cool the water tank T until the water temperature T of the water tank 7 becomes lower than the threshold value T0, it is possible to suppress a decrease in the condensation rate of the steam due to the recovered water 8 in the water tank 7. Therefore, it is possible to perform cooking until the end without stopping heating halfway.

In the third embodiment, when the water temperature T is equal to or higher than the threshold T0 when the water temperature T is switched to the steam less mode or when the heating control is performed in the steam less mode, the cooling device 9 is driven. When the recovered water 8 in the water tank 7 is cooled, for example, in a rice cooker equipped only with the normal mode, when the water temperature T equal to or higher than the threshold T0 is detected when cooking stew or soup, etc. Alternatively, the cooling device 9 may be driven to cool the recovered water 8 in the water tank 7. Thereby, the fall of the condensation rate of steam can be suppressed, without changing the heating pattern of the heating means 5, and it becomes possible to cook to the end, without stopping heating on the way. Furthermore, since the steam less mode is not required, the control unit 12b can be simplified and the cost can be reduced.
Further, when the water temperature T equal to or higher than the threshold T0 is detected during the standby time for the reservation setting for starting heating, the recovered water 8 in the water tank 7 may be cooled by driving the cooling device 9.

Embodiment 4 FIG.
FIG. 7: is a side view which shows the inside of the rice cooker of the heating cooker which concerns on Embodiment 4 of this invention. In addition, the same code | symbol is attached | subjected to the same or equivalent part as Embodiment 1 demonstrated in FIG. 1, and description is abbreviate | omitted.
In FIG. 7, the control part 12b consists of microcomputers, for example, selects the normal mode at the start of cooking and controls the heating means 5 and controls the heating means 5 so that the water amount V becomes equal to or higher than the threshold value V0 by the heating control in this normal mode. When switching from the normal mode to the steam less mode, the heating pattern of the heating means 5 is changed to control the heating. That is, the heating means 5 is controlled to be heated so as to be less than the amount of steam in the rice cooker 2 generated when heating in the normal mode. In the fourth embodiment, since it is determined whether or not to switch to the mode with less steam based on the amount of water V, the temperature sensor 11 becomes unnecessary and the cost can be reduced.

Next, the operation will be described with reference to FIG. FIG. 8 is a flowchart showing the heating control operation in the fourth embodiment.
When detecting an ON operation of a heating switch (not shown) (S51), the controller 12b starts heating in the normal mode and integrates the heating time (S52, S53). And the water amount V of the water tank 7 detected by the water level sensor 10 is read and compared with the threshold value V0 (S54), and when the water amount V of the water tank 7 is lower than the threshold value V0, the predetermined time required for cooking is passed. It is determined whether or not (S55). When the accumulated time has not passed the predetermined time, the process returns to S53 and the above-described operation is repeated. When the predetermined amount of time has passed in a state where the amount of water V in the water tank 7 is lower than the threshold value V0, the heating control in the normal mode is terminated, and this is notified via a buzzer and a liquid crystal display (not shown) ( S56).

  Moreover, when the water amount V of the water tank 7 is equal to or greater than the threshold value V0 when the normal mode is started, or when the water amount V of the water tank 7 is equal to or greater than the threshold value V0 by the heating control in the normal mode, The heating control is performed by changing the heating pattern to the steam less mode (S57). Then, it is determined whether or not a predetermined time necessary for cooking is passed (S58). When the predetermined time has not passed, the heating control in the steam less mode is continued (S57, S58). By switching to the steam less mode, the amount of steam generated from the food in the rice cooker 2 becomes smaller than that in the normal mode and is collected in the water tank 7. When a predetermined time has elapsed while the operation in the steam less mode is repeated, the heating control in the steam less mode is terminated, and this is notified through the buzzer and the liquid crystal display (S56).

  As described above, according to the fourth embodiment, first, heating is performed in the normal mode, and when the water amount V of the water tank 7 is lower than the threshold value V0, the heating control in the normal mode is continued and the heating is performed in the normal mode. When the water amount V of the water tank 7 is equal to or higher than the threshold value V0, or when the water amount V of the water tank 7 becomes equal to or higher than the threshold value V0 by the heating control in the normal mode, the normal mode is switched to the mode with less steam. For example, even if the rice cooking liquid in the rice cooker 2 flows back into the water tank 7 due to the influence of vibration or the like during the heating and exceeds the threshold value V0, by changing to the steam less mode accordingly, Water leakage can be suppressed, and cooking can be performed to the end without stopping heating halfway.

  Also, for example, in a rice cooker, when adding a lot of water to the polished rice like rice cracker and heating it, a large amount of rice cooking liquid will be spilled on the way when heated in the normal rice cooking mode, so `` Okayu mode '' And “normal mode”, the heating mode is set for each. If the user makes a mistake in setting the heating mode and sets the porridge to the “normal mode”, there is a risk that spillage will enter the water tank 7 and the water will overflow from the water tank 7. Thus, even if the amount of steam much larger than the amount of steam assumed in the normal usage method is generated or a spill occurs due to a user's setting error, the amount of water in the water tank 7 When V becomes equal to or higher than the threshold value V0, the mode is switched to the steam less mode, so that water leakage from the water tank 7 can be suppressed, and cooking can be performed to the end without stopping heating halfway.

Embodiment 5 FIG.
Embodiment 5 compares the water temperature T of the water tank 7 with the threshold value T0 immediately before each process of the preheating process, the high heat process, the low heat process, the dry-up process, and the steaming process, for example, the cooking of the rice cooker, and the water temperature T Is the threshold value T0 or more, the heating pattern of the heating means 5 is changed so that the amount of steam generated from the cooked rice (rice and water) in the rice cooker 2 is smaller than usual. In addition, since the rice cooker of Embodiment 5 is the structure similar to Embodiment 1, it demonstrates using FIG.

  The control part 12 in Embodiment 5 consists of microcomputers, for example, and the threshold value V0 with respect to the water amount V of the aquarium 7 and a plurality of threshold values with respect to the water temperature T respectively set according to each step of cooking rice as in Embodiment 1 described above. As data. For example, the threshold value of the preheating process is T1, the threshold value of the high-fire process is T2, the threshold value of the low-fire process is T3, the threshold value of the dry-up process is T4, and the threshold value of the steaming process is T5. This control part 12 reads the water temperature T of the aquarium 7 immediately before each process of rice cooking, compares with the threshold value, and when the water temperature T is more than a threshold value, the amount of steam generated from the cooked rice in the rice cooker 2 decreases. Thus, the steam less mode is selected and the heating pattern of the heating means 5 is changed. Although not shown in FIG. 1, it is assumed that a pot temperature sensor (for example, a thermistor) that detects the temperature of the rice cooker 2 during rice cooking is provided.

Next, the operation will be described with reference to FIG. FIG. 9 is a flowchart showing the operation of heating control in the fifth embodiment.
When detecting the ON operation of the rice cooking switch (S61), the controller 12 first reads the water amount V of the water tank 7 detected by the water level sensor 10 and compares it with the threshold value V0. As described above, when the amount of water V is greater than or equal to the threshold value V0, drainage of the recovered water 8 in the water tank 7 is promoted via a buzzer and a liquid crystal display (not shown). When the amount of water V is lower than the threshold value V0, the water temperature T of the water tank 7 detected by the temperature sensor 11 is read and compared with the threshold value T1 (S62). When the water temperature T is lower than the threshold value T1, the preheating step 1 in the normal mode is selected and time integration is started, and heating is performed so that the temperature of the rice cooking pot 2 detected by the pot temperature sensor becomes a predetermined temperature t1. The means 5 is controlled (S63). Then, it is determined whether or not the integration time has passed the predetermined time A1 (S64). When the integration time has not passed the predetermined time A1, the operations of S63 and S64 described above are repeated, and the integration time is predetermined. When the time A1 has elapsed, it is determined that the preheating step 1 in the normal mode has ended, and the process proceeds to S65.

  If the water temperature T in the water tank 7 is equal to or higher than the threshold T1 (S62), the preheating step 2 in the steam low mode is selected and time integration is started, and the temperature of the rice cooking pot 2 detected by the pot temperature sensor is The heating means 5 is controlled to reach the predetermined temperature t2 (S79), and it is determined whether or not the integrated time has passed the predetermined time A2 (S80). The predetermined temperature t2 of the rice cooker 2 in the preheating step 2 is higher than the temperature t1 in the preheating step 1 (t2> t1), and the predetermined time A2 is set longer than the time A1 in the preheating step 1 (A2> A1). ). This is because the temperature t2 is increased in the preheating step 2 and the time A2 is lengthened to promote water absorption into the rice grains. As the amount of free water remaining in the rice grains without being absorbed by the rice grains increases when boiling, the amount of steam generated increases, so in the preheating step 2, a large amount of water is absorbed in the rice grains in advance to generate the amount of steam. Is suppressed. When the accumulated time has not passed the predetermined time A2, the operations of S79 and S80 described above are repeated, and when the accumulated time has passed the predetermined time A2, it is determined that the preheating step 2 in the steam reduction mode has been completed. Proceed to S65.

  When either one of the preheating steps 1 and 2 is completed, the water temperature T of the water tank 7 detected by the temperature sensor 11 is compared with the threshold T2 (S65). When the water temperature T is lower than the threshold value T2, the high-fire process 1 in the normal mode is selected to control the rice cooker 2 to be heated with the predetermined power W1, and the time integration is started (S66). Then, it is determined whether or not the integration time has passed the predetermined time A3 (S67). If the integration time has not passed the predetermined time A3, the operations of S66 and S67 described above are repeated, and the integration time is predetermined. When the time A3 has elapsed, it is determined that the high flame process 1 in the normal mode has ended, and the process proceeds to S68.

  Moreover, when the water temperature T of the water tank 7 is equal to or higher than the threshold value T2, the high heat process 2 in the steam low mode is selected and controlled so that the rice cooker 2 is heated with the predetermined power W2, and the integration of time is started ( S81), it is determined whether or not the integration time has passed the predetermined time A4 (S82). In the high fire process 2, the power W2 is lower (W2 <W1) and the time A4 is set shorter (A4 <A3) than the high fire process 1. This is because the lower the power and the shorter the time, the less steam is generated. When the integration time has not passed the predetermined time A4, the operations of S81 and S82 described above are repeated, and when the integration time has passed the predetermined time A4, it is determined that the high heat process 2 in the steam low mode has ended. Proceed to

  When either one of the high-fire processes 1 and 2 is completed, the water temperature T of the water tank 7 detected by the temperature sensor 11 and the threshold value T3 are compared as described above (S68). When the water temperature T is lower than the threshold value T3, the low heat process 1 in the normal mode is selected and controlled so that the rice cooker 2 is heated with the predetermined power W3, and the time integration is started (S69). Determines whether or not the predetermined time A5 has elapsed (S70). When the integration time has not passed the predetermined time A5, the operations of S69 and S70 described above are repeated, and when the integration time has passed the predetermined time A5, it is determined that the low heat process 1 in the normal mode has ended, and the process proceeds to S71. move on.

  Moreover, when the water temperature T of the water tank 7 is equal to or higher than the threshold T3, the low heat process 2 in the steam low mode is selected to control the rice cooker 2 to be heated with the predetermined power W4, and the integration of the time is started ( S83), it is determined whether or not the integration time has passed the predetermined time A6 (S84). In the low heat process 2, the power W4 is lower (W4 <W3) and the time A6 is set longer (A6> A5) than in the low fire process 1. This is because the lower the electric power W4 is, the less steam is generated, and the longer the time A6 of the low heat process 2 is, the more free the rice grains remain without being absorbed before proceeding to the dry-up process. This is to absorb as much water as possible. Thereby, the amount of steam in the dry-up process in which steam is more likely to be generated than in the low heat process can be suppressed. When the integrated time has not passed the predetermined time A6, the above-described operations of S83 and S84 are repeated, and when the integrated time has passed the predetermined time A6, it is determined that the low heat process 2 in the low steam mode has been completed. Proceed to S71.

  When either one of the low heat processes 1 and 2 is completed, the control unit 2 compares the water temperature T of the water tank 7 detected by the temperature sensor 11 with the threshold value T4 (S71). When the water temperature T is lower than the threshold value T4, the dry-up process 1 in the normal mode is selected and heated with the predetermined power W5 so that the temperature of the rice cooking pot 2 detected by the pot temperature sensor becomes the predetermined temperature t3 ( S72). Then, it is determined whether or not the temperature of the rice cooker 2 has risen to the predetermined temperature t3 (S73). When the temperature of the rice cooker 2 has not reached the predetermined temperature t3, the operations of S72 and S73 described above are repeated. When the temperature of the rice cooker 2 rises to the predetermined temperature t3, it is determined that the dry-up has been detected, the normal-mode dry-up process 1 is terminated, and the process proceeds to S74.

  If the water temperature T is equal to or higher than the temperature T4, the steam-less mode dry-up process 2 is selected and heated with the predetermined power W6 so that the temperature of the rice cooking pot 2 detected by the pot temperature sensor becomes the predetermined temperature t4. (S85). In the dry-up process 2, the electric power W6 is lower (W6 <W5) and the temperature t4 is set lower (t4 <t3) than in the dry-up process 1. This is to reduce the generation of the amount of steam. When heating with the predetermined power W6, it is determined whether or not the temperature of the rice cooker 2 has risen to the predetermined temperature t4 (S86), and when the temperature of the rice cooker 2 has not reached the predetermined temperature t4, the above-described S85 The operation of S86 is repeated, and when the temperature of the rice cooker 2 rises to the predetermined temperature t4, it is determined that the dry-up has been detected, and the dry-up process 2 in the steam less mode is terminated, and the process proceeds to S74.

  When either one of the dry-up steps 1 and 2 is completed, the water temperature T of the water tank 7 detected by the temperature sensor 11 is compared with the threshold value T5 (S74). When the water temperature T is lower than the threshold value T5, the steaming process 1 in the normal mode is selected to control the rice cooker 2 to be heated with the predetermined power W7, and the integration of the time is started (S75). It is determined whether or not the predetermined time t5 has elapsed (S76). When the integration time has not passed the predetermined time t5, the operations of S75 and S76 described above are repeated, and when the integration time has passed the predetermined time t5, it is determined that the steaming process 1 in the normal mode has ended, and the process proceeds to S77. .

  Further, when the water temperature T is equal to or higher than the threshold T5, the steaming mode 2 in the steam less mode is selected, and the rice cooker 2 is controlled to be heated at the predetermined power W8 lower than the power W7, and the time integration is performed. Is started (S87), and it is determined whether or not the accumulated time has passed a predetermined time t6 (t6 <t5) (S88). The reason why the power W8 of the steaming process 2 is lower than the power W7 of the steaming process 1 is to reduce the amount of steam generated. When the integrated time has not passed the predetermined time t6, the operations of S87 and S88 described above are repeated, and when the integrated time has passed the predetermined time t6, it is determined that the steaming mode 2 in the low steam mode has been completed and S77 is completed. Proceed to

  And when either one of the dry-up processes 1 and 2 is completed, the end of rice cooking is notified through, for example, a buzzer and a liquid crystal display (S77), and the temperature of rice cooking is entered (S78).

  As described above, according to the fifth embodiment, the water temperature T of the water tank 7 is read immediately before each rice cooking step, compared with the corresponding threshold value, and when the water temperature T is equal to or higher than the threshold value, the rice cooking in the rice cooker 2 is read. Since the heating pattern of the heating means 5 is changed so that the amount of steam generated from the object is reduced, the amount of steam is small even when the water temperature T of the water tank 7 is high. It becomes possible to condense with water), and steam leakage from the water tank 7 can be suppressed, so that rice can be cooked to the end without stopping heating halfway. In addition, rice can be cooked without the hassle of cooling the water even when the temperature of tap water is high, such as in summer.

  In Embodiment 5 described above, the water temperature T of the water tank 7 is read immediately before each step of cooking rice, compared with the corresponding threshold value, and when the water temperature T is equal to or higher than the threshold value, the steam less mode is selected and heated. Although the pattern was changed, the water temperature T in the water tank 7 was read during the execution of each process in the normal mode, compared with the corresponding threshold value, and when the water temperature T was equal to or higher than the threshold value, the mode was switched to the steam-less mode and heated. The heating pattern of the means 5 may be changed.

  In addition, as described above, the water temperature T of the water tank 7 is read immediately before each step of cooking rice, and compared with the corresponding threshold value. When the water temperature T is equal to or higher than the threshold value, the mode is switched to the steam less mode. Instead of T, it is possible to determine whether the mode is the normal mode or the mode with less steam from the amount V of water in the water tank 7. For example, immediately before each step of cooking rice or during execution of each step, the water amount V of the water tank 7 detected by the water level sensor 10 is read, compared with the corresponding threshold value, and when the water amount V is equal to or greater than the threshold value, Heating control is performed by changing the heating pattern of the heating means 5 so that the amount of steam generated from the cooked rice in the rice cooker 2 is smaller than usual. As a result, even if the amount of water V in the water tank 7 becomes equal to or higher than the water level of the water level sensor 10 during rice cooking, the steam is not leaked from the water tank 7 because the amount of steam is small, and the steam is collected in the water 8 (recovered water) in the water tank 7. ) Can be condensed, and for this reason, it is possible to cook rice without stopping heating halfway.

  In addition, when the cooling device 9 is attached to the bottom of the water tank 7 and the steam temperature reduction mode is executed from the water temperature T of the water tank 7 in each rice cooking process, the water temperature T of the water tank 7 becomes equal to or higher than the threshold value T0. Alternatively, the cooling device 9 may be driven to cool the recovered water 8 in the water tank 7 so as to suppress a decrease in steam condensation rate.

  Moreover, in Embodiment 5, when the rice cooking switch ON operation was detected, the water temperature T and the threshold value T1 were compared immediately before the preheating step. However, the water temperature T and the threshold value T1 after the standby time by the reservation setting elapses. May be compared. Thereby, the heating means 5 can be controlled by heating according to the rise of the water temperature T during the integration of the standby time.

Embodiment 6 FIG.
FIG. 10 is a side view showing the inside of, for example, a rice cooker of a heating cooker according to Embodiment 6 of the present invention, and FIG. 11 is a side view showing an example of steam release when the valve is opened in the rice cooker shown in FIG. . In addition, the same code | symbol is attached | subjected to the same or equivalent part as Embodiment 1, 4 demonstrated in FIG.1 and FIG.7, and description is abbreviate | omitted.
10 and 11, a steam discharge port 13 (steam discharge means) formed on the side surface of the rice cooker body 1 on the water tank 7 side discharges the steam guided into the water tank 7 by the steam discharge pipe 6 to the outside. Is provided. Since high-temperature steam may be emitted from the steam discharge port 13, a notice of “high temperature caution” is greatly displayed on the side surface of the rice cooker body 1 near the steam discharge port 13. A normally closed on-off valve 14 (opening / closing means) for opening and closing a steam discharge port 14a (steam discharge means) is attached to the side surface of the water tank 7 on the steam discharge port 13 side, and steam provided in the water tank 7 is also provided. A normally closed on / off valve 15 for opening / closing a steam discharge port 15a (steam discharge means) is attached to a side surface of the introduction pipe 7b on the side of the on / off valve 14. The steam outlets 14a and 15a described above are arranged around the same central axis.

  The control unit 12c has, as data, a threshold value T0 of the water temperature T detected by the temperature sensor 11 and a threshold value V0 of the water amount V detected by the water level sensor 10. When the amount of water V detected by the water level sensor 10 is equal to or greater than the threshold value V0, drainage of the recovered water 8 in the water tank 7 is promoted via a buzzer and a liquid crystal display (not shown) as described above. Since this notification does not affect the cooking before heating control, the drainage of the recovered water 8 is promoted. When the water temperature T of the water tank 7 detected by the temperature sensor 11 is lower than the threshold value T0 when the water amount V is lower than the threshold value V0 or when the water amount V becomes lower than the threshold value V0 due to drainage of the recovered water 8 Selects the normal mode, and when the water temperature T is equal to or higher than the threshold T0, selects the steam low mode and changes the heating pattern of the heating means 5, opens the on-off valves 14 and 15, and removes the steam. Drain from the outlet 13. Further, when the heating means 5 is controlled to be heated in the steam reduction mode, when the water temperature T becomes equal to or higher than the threshold value T0, the cooling device 9 is driven to cool the recovered water 8 in the water tank 7.

Next, the operation of the sixth embodiment will be described with reference to FIGS.
When the water amount V detected by the water level sensor 10 is lower than the threshold value V0 and the water temperature T of the water tank 7 detected by the temperature sensor 11 is lower than the threshold value T0, the control unit 12c performs heating in the normal mode. The heating is controlled. When steam is generated from the food in the rice cooker 2 by this heating control, the steam passes through the steam discharge pipe 6 and the steam introduction pipe 7b as shown by the arrows in FIG. Condensed. On the other hand, the control unit 12c determines whether or not a predetermined time necessary for cooking is elapsed, and compares the water temperature T of the water tank 7 with a threshold T0 when the predetermined time has not elapsed. When the water temperature T is lower than the threshold T0, the heating control in the normal mode is continued, and when the predetermined time has elapsed, the heating control in the normal mode is terminated, and a notification to that effect is given via the buzzer and the liquid crystal display. To do.

  Further, when the water temperature T in the water tank 7 is equal to or higher than the threshold value T0, the steam low mode is selected, and heating is performed by changing the heating pattern of the heating means 5 so that the amount of steam generated from the food in the rice cooker 2 is reduced. Control. Next, as shown in FIG. 11, the on-off valves 14 and 15 are opened, and attention by steam discharge is urged by, for example, sounding a buzzer. In this case, the on-off valve 15 opens downward to close the steam introduction pipe 7b, and the on-off valve 14 opens upward to contact the upper edge of the steam exhaust port 15a. At this time, the steam introduced into the steam introduction pipe 7b passes through the steam discharge ports 15a and 14a in order, and is discharged to the outside from the steam discharge port 13 provided in the rice cooker body 1 as indicated by an arrow.

  On the other hand, the control unit 12c determines whether or not a predetermined time has elapsed. When the predetermined time has not elapsed, the control unit 12c continues the heating control in the steam less mode and maintains the open state of the on-off valves 14 and 15. To do. And when predetermined time passes, the heating control by steam less mode is complete | finished, that is notified via a buzzer and a liquid crystal display, and the on-off valves 14 and 15 are closed.

  As described above, according to the sixth embodiment, when the less steam mode is selected from the water temperature T of the water tank 7, the on-off valves 14 and 15 are opened to release less steam than in the normal mode. Since it was made to discharge | emit from the exit 13, even if the water temperature T of the water tank 7 became so high that the condensation rate of the vapor | steam fell, cooking can be performed to the last, without stopping heating on the way.

  Moreover, since the site | part which vapor | steam comes out can be specified by providing the steam discharge port 13 in the rice cooker main body 1, the damage of the wall and flooring by condensation is prevented by installing so that the site | part may not hit a wall etc. In addition, when the steam is discharged from the steam outlet 13, the buzzer notifies that fact, and a notice of “high temperature caution” is displayed near the steam outlet 13. It is possible to prevent the risk of burns from accidentally approaching the hand.

  In the sixth embodiment, the open / close valves 14 and 15 are opened when the steam low mode is selected from the water temperature T of the water tank 7. However, the water amount V and the threshold value V 0 of the water tank 7 detected by the water amount sensor 10 are used. When the amount of water V is equal to or higher than the threshold value V0, the steam less mode is selected, the on-off valves 14 and 15 are opened, and the steam introduced into the water tank 7 is passed through the steam outlets 15a, 14a and 13 You may make it discharge from the cooker main body 1 outside. Thereby, the recovered water 8 does not leak from the water tank 7, and cooking can be performed to the end without stopping heating halfway.

  Moreover, in Embodiment 6, when the steam less mode is selected from the water temperature T of the water tank 7, the on-off valves 14 and 15 are opened, and the steam in the water tank 7 is discharged from the container outlet 13 of the rice cooker body 1 to the outside. For example, when the water temperature T of the water tank 7 is equal to or higher than the threshold T0 when the heating control is performed in the normal mode, the on-off valves 14 and 15 are opened and the steam in the water tank 7 is cooked. When the amount of water V in the water tank 7 is equal to or greater than the threshold value V0 during the heating control in the normal mode, the on-off valve 14 may be discharged. , 15 may be opened to discharge the steam in the water tank 7 from the container outlet 13 of the rice cooker body 1 to the outside. Thereby, without changing the heating pattern of the heating means 5, the recovered water 8 does not leak from the water tank 7, and heating cooking can be performed to the end without stopping heating halfway.

  In the above-described embodiment, the heating control is changed by detecting the water temperature T or the water amount V of the water tank 7 or the water 8 in the water tank 7 is cooled to condense the steam by the water 8 in the water tank 7. However, if the water level sensor 10 or the temperature sensor 11 fails during heating, it becomes impossible to detect the state of the water 8 in the water tank 7, so that the control unit 12, 12a-12c reduces the amount of steam. You may make it perform heating control in the mode until it selects a mode and completes heat cooking (rice cooking). Thereby, there is no risk of steam leakage or water leakage from the water tank 7 until the end of cooking.

  Also, in the cold season such as winter, the water 8 in the aquarium 7 is cooled by the outside air even during cooking, so the water temperature T of the aquarium 7 is higher than when heating in a hot environment such as summer. However, the risk of steam leakage during cooking is low. Therefore, you may make it change the threshold value T0 of the warm water T of the water tank 7, and the threshold value V0 of the water quantity V according to a season and external temperature. The threshold values T0 and V0 are set in advance in the control units 12 and 12a to 12c, and are automatically changed according to the season and the outside temperature by the control units 12 and 12a to 12c. By changing the threshold value in this way, it is not necessary to cool the water tank 7 with the cooling device 9 more than necessary, which leads to energy saving. Moreover, as control which suppresses generation | occurrence | production of steam, as shown to S80 and S84 of FIG. 9, although process time (predetermined time A2 or A6) is made longer than normal mode, those process time may be shortened. Can also reduce cooking time.

  Moreover, in embodiment mentioned above, although the temperature sensor 11 was provided in the rice cooker main body 1 and it was made to contact the side surface of the water tank 7 at the time of installation of the water tank 7, a temperature sensor is provided in the water tank 7 and temperature data are provided. May be communicated to the control units 12, 12a to 12c in a non-contact manner. Moreover, although the material with good heat conduction was used for the water tank 7, when it was set as the structure which arrange | positions a temperature sensor in the water tank 7 as mentioned above, you may use a material with poor heat conductivity for the water tank 7.

  Moreover, although the rice cooker was mentioned as an example as a heating cooker, you may apply to the coffee maker which generate | occur | produces a steam at the time of cooking, and an automatic bread maker.

DESCRIPTION OF SYMBOLS 1 Rice cooker main body, 2 Rice cooker, 3 Lid body, 4 Inner lid, 5 Heating means, 6 Steam discharge pipe, 7 Water tank, 7a Water tank cover, 7b Steam introduction pipe, 8 Water (recovered water), 9 Cooling device,
DESCRIPTION OF SYMBOLS 10 Water level sensor, 11 Temperature sensor, 12, 12a-12c Control part, 13 Main body side steam outlet, 14, 15 On-off valve, 14a Water tank side steam outlet, 15a Steam inlet side steam outlet

Claims (16)

A food cooking container detachably stored in the cooker body;
Heating means for heating the container;
A water tank for recovering water generated by condensing steam generated from food in the container during cooking;
A water amount detection means for detecting the amount of water in the water tank;
Control means for controlling the heating of the heating means,
The control means compares the amount of water in the water tank detected by the water amount detection means with a threshold value, and changes the heating pattern of the heating means when the amount of water is equal to or greater than the threshold value. A steam discharge path for guiding steam generated from the food in the container during cooking to the water tank from the container;
Steam discharge means provided in the steam discharge path and communicating with the outside of the cooker body;
A normally closed opening and closing means provided in the steam discharge means,
The control means opens the opening / closing means when the amount of water in the water tank detected by the water quantity detection means is equal to or greater than a threshold value, and the steam in the steam discharge path is removed from the cooker body via the steam discharge means. The cooking device according to claim 1, wherein the cooking device is discharged to the outside.   The control means includes, as a rice cooking process, a preheating process for heating rice and water in the container at a predetermined temperature, a high heat process for gelatinizing rice starch, a low heat process for sufficiently gelatinizing the inside of the rice, and the container It has a dry-up process and a steaming process for evaporating excess water inside, has a plurality of threshold values for the amount of water set according to each process, and immediately before each process of cooking rice or during the execution of each process The water amount in the water tank detected by the water amount detecting means is compared with a threshold value, and the heating pattern of the heating means is changed when the water amount is equal to or more than the threshold value. Cooking cooker.   The control means reads the amount of water in the water tank detected by the water amount detection means immediately before the preheating step or during execution of the preheating step among the respective steps, and compares it with the corresponding threshold value from the plurality of threshold values. The cooking device according to claim 3, wherein when the amount of water is equal to or greater than a threshold value, the heating pattern in the preheating step is changed to a heating pattern that is higher than a predetermined temperature.   The control means reads the amount of water in the water tank detected by the water amount detection means immediately before the preheating step or during execution of the preheating step among the respective steps, and compares it with the corresponding threshold value from the plurality of threshold values. The cooking device according to claim 3 or 4, wherein when the amount of water is equal to or greater than a threshold value, the heating pattern is changed to a heating pattern in which the process time of the preheating process is longer than a predetermined time.   The control means reads the amount of water in the water tank detected by the water amount detection means immediately before the strong fire process or during execution of the strong fire process among the respective processes, and compares it with the corresponding threshold value from the plurality of threshold values. The cooking device according to any one of claims 3 to 5, wherein when the amount of water is equal to or greater than a threshold value, the heating pattern is changed to a heating pattern in which the electric power in the high-fire process is lower than a predetermined electric power.   The control means reads the amount of water in the water tank detected by the water amount detection means immediately before the strong fire process or during execution of the strong fire process among the respective processes, and compares it with the corresponding threshold value from the plurality of threshold values. The cooking device according to any one of claims 3 to 6, wherein when the amount of water is equal to or greater than a threshold value, the heating pattern is changed to a heating pattern in which the process time of the high-fire process is shorter than a predetermined time.   The control means reads the amount of water in the water tank detected by the water amount detection means immediately before the low fire process or during execution of the low fire process among the respective processes, and compares it with the corresponding threshold value from the plurality of threshold values. The cooking device according to any one of claims 3 to 7, wherein when the amount of water is equal to or greater than a threshold value, the heating pattern is changed to a heating pattern in which the electric power in the low-fire process is lower than a predetermined electric power.   The control means reads the amount of water in the water tank detected by the water amount detection means immediately before the low fire process or during execution of the low fire process among the respective processes, and compares it with the corresponding threshold value from the plurality of threshold values. The heating cooker according to any one of claims 3 to 8, wherein when the amount of water is equal to or greater than a threshold value, the heating pattern is changed to a heating pattern in which the process time of the low heat process is longer than a predetermined time.   The control means reads the amount of water in the water tank detected by the water amount detection means immediately before the dry-up process or during the execution of the dry-up process among the respective processes, and sets a corresponding threshold value from the plurality of threshold values. 10. The cooking device according to claim 3, wherein, when the amount of water is equal to or greater than a threshold value, the heating pattern is changed to a heating pattern in which the power in the dry-up process is lower than a predetermined power.   The control means reads the amount of water in the water tank detected by the water amount detection means immediately before the dry-up process or during the execution of the dry-up process among the respective processes, and sets a corresponding threshold value from the plurality of threshold values. The heating cooker according to any one of claims 3 to 10, wherein the heating pattern is changed to a heating pattern in which the heating temperature in the dry-up process is lower than a predetermined temperature when the amount of water is equal to or greater than a threshold value.   The control means reads the amount of water in the water tank detected by the water amount detection means immediately before the steaming process or during the steaming process among the respective processes, and compares it with the corresponding threshold value from the plurality of threshold values. The cooking device according to any one of claims 3 to 11, wherein when the amount of water is equal to or greater than a threshold value, the heating pattern is changed to a heating pattern in which the electric power of the steaming step is lower than a predetermined electric power. Removably stored in the cooker body, and a container for cooking food,
Heating means for heating the container;
A steam discharge path for guiding steam generated from the food in the container to the outside during cooking,
A water tank for recovering the water produced by condensing the steam guided from the steam discharge path;
A water amount detection means for detecting the amount of water in the water tank;
Steam discharge means provided in the steam discharge path and communicating with the outside of the cooker body;
A normally closed opening / closing means provided in the steam discharge means;
Control means for controlling the heating of the heating means,
The control means compares the amount of water in the water tank detected by the water amount detection means with a threshold value, and opens the opening / closing means when the amount of water is equal to or greater than the threshold value, and the steam in the steam discharge path is discharged to the steam discharge means. A heating cooker characterized in that it is discharged from the cooker body through the outside.   The said control means changes the heating pattern of the said heating means so that generation | occurrence | production of a vapor | steam will decrease, when the abnormal state of the said water quantity detection means is detected. Cooking device.   The cooking device according to any one of claims 3 to 14, wherein the water amount detection means uses a water level sensor that detects a height of a water surface in the water tank.   The cooking device according to any one of claims 3 to 15, wherein the water amount detection means uses a weight sensor that detects a weight of the water tank.

Images