JP2003217810A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To supply electric power to a heating means intended by a user with priority in a heating cooker having a total electric power limit of a plurality of heating means. <P>SOLUTION: This heat cooker includes a plurality of heating means 1 to 3, a plurality of control means 4 to 6 for controlling electrical feeding to the plurality of heating means 1 to 3, respectively, a current limiting means 8 for regulating the total amount of currents applied to the heating means 1 to 3 to a designated value or less, and a storage means 7 for storing at least one status between the actual working status of the device and the setting status. According to the storage contents of the storage means 7, cooking is performed, whereby the device can be used according to the heating means, cooking menu and timer time having a high frequency of use, so in practical use, it is very excellent. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating cooker used in homes and the like.

[0002]

2. Description of the Related Art In a conventional general cooking device,
The heating powers of the plurality of heating means are individually set by the plurality of control means. Each heating means, for example,
It is set so that the first heating means can perform cooking at a maximum of 3 kW, the second heating means at a maximum of 1.4 kW, and the third heating means at a maximum of 2 kW. At this time, since the total electric power of the device is regulated to 4.8 kW or less, the first to the third
When all of the above heating means are used, the current limiting means limits the use of the first heating means to 1.4 kW or less.

[0003]

As described above, in the structure of the conventional heating cooker, the heating means that lowers the heat power is specified (fixed) from the relationship with the total electric power. Even if it is used most often, even if it is tried to use it for cooking with high heat power, high heat power may not come in, and there is a problem that it is not easy to use in actual use.

This is one of the problems concerning the heating means, but the operation is complicated and the user-friendliness is not practical in actual use even when the heating menu is selected, the timer time is set, or various settings are made during use. Met.

The present invention is intended to solve the above problems, and it is an object of the present invention to provide a heating cooker which is easy to use in actual use by storing the actual use status of the equipment.

[0006]

In order to achieve the above-mentioned object, the heating cooker of the present invention comprises a storage means for storing at least one of the actual usage status and the setting status of the equipment, and the storage content of the storage means. It is possible to cook based on.

[0007] With this, it is possible to make it convenient in actual use, such as supplying the current preferentially to the heating means that is frequently used.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is such that a plurality of heating means, a plurality of control means for respectively controlling energization to the plurality of heating means, and a total amount of current supplied to the heating means are predetermined. A heating cooker that includes a current limiting unit that regulates the value to a value or less and a storage unit that stores at least one of the actual use status and the setting status of the device, and is capable of cooking based on the stored content of the storage unit. Depending on the actual usage status of the device,
It can be cooked according to the setting situation, and is easy to use.

According to the second aspect of the invention, the current limiting means is a cooking apparatus in which the current is preferentially supplied to the heating means stored in the storage means and having the longest use time among the plurality of heating means. By using a cooking device, the heating means having the highest frequency of use can be preferentially cooked with high thermal power, which is convenient.

According to the third aspect of the present invention, the heating cooker which is stored has a limited use time of each heating means only for a predetermined time which has been used recently, so that it is frequently used recently. The heating power can be given priority over the heating means, which is convenient.

According to a fourth aspect of the present invention, the storage means stores the number of times the plurality of heating menus are selected, and when selecting the plurality of heating menus, the heating menu having the largest number of selections is selected with priority. By using the heating cooker configured as described above, when selecting a plurality of heating menus, the automatic cooking menu having the largest number of selections can be preferentially selected, which is convenient.

According to the fifth aspect of the present invention, the number of times each heating menu to be stored is limited to a predetermined number of times using the recent heating menu, so that the cooking device is frequently used recently. It is easy to use because you can give priority to the heating menu that is no longer available.

According to a sixth aspect of the present invention, the storage means stores the set timer time, and when setting the timer time, a heating cooker capable of prioritizing and setting the most frequently set time is provided. By doing so, the number of times the device is operated can be reduced when setting the timer, which is convenient.

According to a seventh aspect of the present invention, the storage means stores the timer time by incrementing or truncating the timer time by a predetermined time unit and storing the timer time. Even if the set time varies to some extent, it is possible to set the time that is frequently used by the user to the initial value, which is convenient.

According to the eighth aspect of the present invention, by setting the heating cooker in which the stored timer time is limited to a predetermined number of times in recent times, the timer time set recently can be set to the initial value. It is easy to use.

According to a ninth aspect of the present invention, the heating means is an induction heating means, and the storage means has a voltage applied to a switching element that constitutes the induction heating means during normal use, electric power to be heated, and the switching element. Remember temperature and
By using a heating cooker that stops heating when the temperature of the switching element rises by a predetermined temperature difference or more even though the voltage and power are the same, failure of equipment such as switching element cooling fan and switching element Even if there is a misuse by the user, such as blocking the intake and exhaust ports of the cooling fan, the equipment can be stopped immediately, which is safe and easy to use.

According to a tenth aspect of the present invention, the storage means comprises:
Memorize the amount of warpage of the bottom of the heated object during normal use,
If the amount of warp measured at the start of heating by the heating means is different from the amount of warp stored in advance, use a heating cooker in which the measurement of the amount of warp is performed again, so that a pan different from the pan normally used by the user. When trying to cook with, the accuracy of the warp pan determination can be improved, which is convenient.

According to an eleventh aspect of the invention, the storage means comprises:
Of the plurality of heating means, a heating cooker that stores so as to prohibit the heating operation of the heating means other than the heating means that performs induction heating is safe and easy to use.

According to a twelfth aspect of the present invention, the storage means comprises:
By storing the setting of a plurality of heating means arbitrarily set, each control means is a heating cooker that controls the heating power below the setting for each heating means stored in the storage means, Among the heating means, the high heating power can be distributed in preference to the heating means required by the user, which is convenient.

[0020]

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

(Embodiment 1) FIGS. 1 and 2 show a heating cooker according to Embodiment 1 of the present invention. As shown in the figure, this heating cooker is a kitchen cooking heater having a plurality of heating means, and the first heating means 1 is 3 kW.
Induction heater, the second heating means 2 is an electric heater of 1.4 kW, and the third heating means 3 is an induction heater of 2 kW. Further, the heating means 1 to 3 are provided with first to third control means 4 to 6 which respectively control the energization to them. Then, the total amount of current supplied to each of the heating units 1 to 3 is regulated to a predetermined value or less by the current limiting unit 8 so that the total power amount of the entire device becomes 4.8 kW. When it exceeds 8 kW, the heating means used last cannot be heated. That is, since the total electric power is 3.4 kW while the second heating means 2 and the third heating means 3 are in use, the maximum heating power of the first heating means 1 is up to 1.4 kW.

Here, the storage means 7 stores at least one of the actual use status and the setting status of the device. In this embodiment, the usage times of the heating means 1 to 3 are stored, and the current limiting means 8 preferentially supplies the current to the heating means having the longest usage time. The use time of each heating means to be stored is limited only to a predetermined time which has been used recently, so that heating power can be preferentially given to the heating means which has been frequently used recently.

Now, as shown in FIG. 2A, the first four
The storage means 7 sets the priority order of the heating means based on the use time of the heating means 1 to 3 in 0 hours. As a result, the first heating means 1 is prioritized. Therefore, as shown in Example 1, when the first heating means 1 is used at 3 kW, the third heating means 3 that is prioritized next has 1 It becomes usable at 0.8 kW, and the second heating means 2 having the lowest priority is disabled.

Further, as shown in Example 2, when the first heating means 1 is used at 2 kW, the third heating means 3 to be given next priority can be used at the rated 2 kW. When the setting of the first heating means 1 is changed to 3 kW, the
The heating means 3 of 1. is automatically lowered to 1.8 kW. Furthermore, if the setting of the first heating means 1 is changed to 1.2 kW,
The third heating means 3 returns to the rated 2 kW, and the second heating means 2 becomes usable at the rated 1.4 kW.

As shown in FIG. 2B, when the second heating means 2 is used for the longest time in the next 40 hours, the second heating means 2 is given the highest priority. The heating means 3 of 3 is disabled. Further, in Example 2, the setting of the heating means is changed based on the same idea as in Example 2 shown in FIG.

The storage means 7 is provided in a device by using a non-volatile semiconductor memory for writing and reading data by the microcomputer of the electronic circuit constituting the first to third control means 4 to 6. The stored contents of the storage means 7 are retained even if power is not supplied. This storage method is the same in the following embodiments.

(Embodiment 2) FIGS. 3 and 4 show a heating cooker according to Embodiment 2 of the present invention, which is a cooking heater for a kitchen capable of automatic grill cooking.

In this embodiment, the user can select a favorite menu from the heating menus of "roasted", "dried fish" and "baked potato", and the baking means for carrying out the cooking selected by the selection means 9. Equipped with 10. And
The storage means 7 stores the number of times a plurality of heating menus are selected, and when selecting a plurality of heating menus, the heating menu having the largest number of selections is preferentially selected. In addition, the number of selections of each heating menu to be stored,
Restricted to a certain number of times using the recent heating menu,
The heating menu, which has come to be used frequently recently, can be preferentially selected.

Now, as shown in FIG. 4, the order of selection in the initial setting is "Roasted" → "Dried fish" → "Baked potato" → "Roasted"
However, since the number of times the "dried fish" has been used is large due to the number of selections made 20 times in recent times,
The order has been changed from "dried fish" to "roasted" to "baked potato" to improve usability in actual use.

(Embodiment 3) FIGS. 5 and 6 show a heating cooker according to Embodiment 3 of the present invention, which is a cooking heater for a kitchen which realizes timer cooking.

In this embodiment, the heating means 1 to 3 are heated by the timer means 11 by setting the "hour" digit and the "minute" digit as required. And the storage means 7
The timer time set by the timer means 11 is stored, and when setting the timer time, the time with the highest setting frequency can be set preferentially. Also, the storage means 7
Is configured to advance the timer time to a predetermined time unit or round it down and store it. Furthermore, the storage means 7
Limits the stored timer time to only a predetermined number of times in recent times, and can set the timer time set frequently recently to an initial value, which is convenient.

The user sets the "hour" digit and the "minute" digit by the timer means 11 as necessary to start heating, and when the set time elapses, a predetermined buzzer notification is given and cooking is completed. . At this time, the initial setting value when the user operates the minute digit of the timer means 11 is "0:01", that is, 1
When the minute is set and the time digit is set from the beginning, the setting is "1:00", that is, one hour.

As shown in FIG. 6, the initial setting of the timer is "0:00", but the user sets the timer means 11
As a result of storing the number of times of the timer time set recently by the storage means 7, the most cases were set between 1 hour and 1 hour and 55 minutes. Therefore, when the timer means 11 is operated next time, "1:00", that is, 1 hour is set as an initial value. After that, when the timer means 11 is operated, the setting increases from that time regardless of the set number of times.

(Fourth Embodiment) FIGS. 7 and 8 show a heating cooker according to a fourth embodiment of the present invention, which is premised on an induction heating cooker.

In the induction heating cooker, as is well known, a high-frequency magnetic field is generated by a high-frequency power source to heat a metal by an eddy current. The switching element constituting the high-frequency power source generates heat during its operation. To do.

In order to cool this, a cooling fan (not shown) is generally provided to cool the air by blowing the outside air that has been taken in. At this time, if a material such as magnetic SUS, which is hard to be heated by induction heating even if it is heated with the same electric power, is a characteristic of induction heating, the switching speed of the switching element increases and the voltage VCE applied to the switching element increases. As the current flowing through the switching element also increases, the temperature rise of the switching element becomes severe. Utilizing this phenomenon, the voltage VCE applied to the switching element based on the pan used by the user, the electric power heated at that time, and the temperature of the switching element in that case are stored in the storage means (not shown, but in each embodiment. It is stored by the same means as in (1), and the heating is stopped when the temperature of the switching element becomes higher than a predetermined temperature difference despite the same voltage and power.

As shown in FIGS. 7 and 8, the type of pan (horo or SUS), power (W), voltage VCE (V) of switching element, temperature (° C.) of switching element are different for each cooking device. It is constant. At this time, if the cooling fan fails and stops, or if the intake port of the cooling fan is blocked due to misuse by the user, the temperature of the switching element rises beyond the relationship shown in FIGS. 7 and 8. . Based on this result, it is determined that a state different from usual, that is, a device failure or a user's misuse has occurred, and heating is stopped, making it safe and easy to use.

(Fifth Embodiment) FIGS. 9 and 10 show a heating cooker according to a fifth embodiment of the present invention. In particular, an induction heating cooker with a fried food cooking function for keeping the temperature of frying oil at a predetermined temperature. Here is an example:

In this embodiment, first, the warp pan determination is performed on the pan for frying. That is, at the beginning of heating, 1
Heating is performed for 40 seconds at kW, and the amount of warp of the pot bottom, and the warp determination rank from "no warp" to "warp 3" are determined by the temperature rise value during that time.

Usually, if the bottom of the pan is warped in a concave shape of 2 mm or more, it becomes difficult to measure the temperature of the pan and cooking of fried food becomes difficult. When a user uses such a pot, he / she adjusts the heating power and temperature to cook according to the pot he is familiar with.

In this embodiment, the warp amount of the bottom surface of the object to be heated (pot) during normal use is stored in the storage means (not shown, but the same as the storage means in each embodiment), and the heating means is used. Determine whether the amount of warp measured at the start of heating matches the amount of warp stored in advance,
If they differ, measure the amount of warp again to obtain the correct amount of warp with high accuracy, and if the amount of warp matches the stored amount of warp, it is judged to be a pot that is always used. The heating power of the heating is raised to raise the temperature quickly, making it easy to use.

(Embodiment 6) FIG. 11 shows a heating cooker according to Embodiment 6 of the present invention, which is a cooking heater for a kitchen.

In the figure, like the first embodiment, among the plurality of heating means, the first heating means 1 is an induction heater of 3 kW, the second heating means 2 is an electric heater of 1.4 kW, and the third heating means. The heating means 3 has a configuration of an induction heater of 2 kW.

At this time, the electric heating which is the second heating means 2 in which the temperature rises even if there is no object to be heated is, for example, for households with small children or families who are not accustomed to using electric cooking heaters. If so, the operation stopping means 12 prohibits the heating operation other than the heating means for performing the induction heating, that is,
The use of the second heating means 2 is prohibited. Then, by storing the setting of the use prohibition in the storage means 7, the setting is continued. Thus, the heating cooker is safe and easy to use (Embodiment 7) FIG. 12 shows a heating cooker according to Embodiment 7 of the present invention, which is a cooking heater for a kitchen.

As shown in the figure, the maximum heat power of the plurality of heating means 1 to 3 is set by the heat power setting means 13 via the control means 4 to 6 to perform heating and cooking. At this time, by storing the upper limit of the set heating power in the storage means 7,
This is to prevent further setting of firepower.

That is, for example, if the third heating means 6 is often used for cooked simmer, the upper limit of the heating power setting is 4
I memorize it as 50W so that I will not accidentally increase it to high heat power. That is, the setting of a plurality of heating means set arbitrarily is stored, and each control means controls the heating power below the setting for each heating means stored in the storage means. Of these, high heat power can be distributed in preference to the heating means required by the user, which is convenient.

[0047]

As described above, according to the present invention, the storage means for storing at least one of the actual usage status and the setting status of the equipment is provided, and cooking is possible based on the storage content of the storage means. In addition, it is possible to make it convenient in practical use, such as supplying current preferentially to the heating means that is frequently used.

[Brief description of drawings]

FIG. 1 is a block diagram of a heating cooker according to a first embodiment of the present invention.

FIG. 2 (a) is an explanatory view of the first operation of the current limiting means in the heating cooker, and FIG. 2 (b) is an explanatory view of the operation after the lapse of the same time.

FIG. 3 is a block diagram of a heating cooker according to a second embodiment of the present invention.

FIG. 4 is an operation explanatory view of the induction heating cooker.

FIG. 5 is a block diagram of a heating cooker according to a third embodiment of the present invention.

FIG. 6 is an operation explanatory view of the heating cooker.

FIG. 7 is an operation explanatory view of the heating cooker according to the fourth embodiment of the present invention.

FIG. 8 is an explanatory diagram showing the relationship between the types of pans of the heating cooker and the respective requirements.

FIG. 9 is an operation explanatory view of the heating cooker according to the fifth embodiment of the present invention.

FIG. 10 is an explanatory diagram showing the relationship between the temperature rise value of the pan and the warp determination rank in the same cooking device.

FIG. 11 is a block diagram of a heating cooker according to a sixth embodiment of the present invention.

FIG. 12 is a block diagram of a heating cooker according to a seventh embodiment of the present invention.

[Explanation of symbols]

1 First heating means 2 Second heating means 3 Third heating means 4 First control means 5 Second control means 6 Third control means 7 storage means 8 Current limiting means 9 means of selection 10 firing means 11 Timer means 12 Operation stop means 13 Firepower setting means

Continued front page    F term (reference) 3K051 AB08 AC07 AD13 AD14                 3L087 AA20 AB03 AB11 BA03 BB20                       BC06 BC10 DA24

Claims (12)

[Claims] 1. A plurality of heating means, a plurality of control means for respectively controlling energization to the plurality of heating means, a current limiting means for restricting a total amount of current energized to the heating means to a predetermined value or less, and a device. And a storage means for storing at least one of the actual use status and the setting status of the heating cooker capable of cooking based on the stored content of the storage means. 2. The cooking device according to claim 1, wherein the current limiting means preferentially supplies the current to the heating means stored in the storage means and having the longest use time among the plurality of heating means. . 3. The use time of each heating means to be stored is
The heating cooker according to claim 2, wherein the heating cooker is limited only to a predetermined time used recently. 4. The storage means stores the number of times a plurality of heating menus are selected, and when selecting the plurality of heating menus, the heating menu having the largest number of selections is preferentially selected. The cooking device according to. 5. The heating cooker according to claim 4, wherein the number of selections of each heating menu to be stored is limited to a predetermined number of times using the recent heating menu. 6. The heating cooker according to claim 1, wherein the storage means stores the set timer time, and when setting the timer time, the time having the highest setting frequency can be preferentially set. 7. The heating cooker according to claim 6, wherein the storage means stores the timer time by advancing or truncating the timer time by a predetermined time unit. 8. The heating cooker according to claim 6, wherein the timer time to be stored is limited to a predetermined number of recent times. 9. The heating means is an induction heating means, and the storage means stores a voltage applied to a switching element that constitutes the induction heating means during normal use, electric power to be heated, and a temperature of the switching element, and they are equivalent to each other. The heating cooker according to claim 1, wherein the heating is stopped when the temperature of the switching element becomes higher than a predetermined temperature difference despite the voltage and the electric power. 10. The storage means stores the warp amount of the bottom surface of the object to be heated during normal use, and when the warp amount measured at the start of heating by the heating device is different from the pre-stored warp amount, the warp amount. The cooking device according to claim 1, wherein the measurement is repeated. 11. The cooking device according to claim 1, wherein the storage means stores the plurality of heating means so as to prohibit a heating operation other than the heating means for performing induction heating among the plurality of heating means. 12. The storage means stores the setting of a plurality of heating means set arbitrarily, and each control means controls the heating power below the setting for each heating means stored in the storage means. Item 2. A heating cooker according to item 1.