JP2002320328A - Cooking apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a large electric power cooking apparatus which has superior characteristic like short time cooking by large electric power heating wherein capacity of a plurality of power sources is summed. SOLUTION: In this cooking apparatus, large electric power heating is performed in which capacity of the respective power sources 6a, 6b, 6c is summed by using a plurality of input means 5a, 5b, 5c to which powers are inputted from the power sources 6a, 6b, 6c, an electric power integrating means 7 which is connected with the input means 5a, 5b, 5c and integrates the inputted powers, and a heating means 8 which is connected with the power integrating means 7 and performs heating for cooking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking appliance used in ordinary households.

[0002]

2. Description of the Related Art In a cooking device, cooking is performed by heating a pot or the like to be heated using electric power input from a power supply.

An example of a conventional cooking device will be described below with reference to FIG. In FIG. 6, reference numeral 1 denotes a plug which is input means for inputting power from a power supply, 2 denotes a high-frequency inverter connected to the input means, 3 denotes an induction heating coil connected to the high-frequency inverter 2, and
And the heating coil 3 constitute a heating means. 4 is a cooking pot.

As shown in this configuration, the power supplied from the input means is converted into high-frequency power by a high-frequency inverter 2, and a high-frequency magnetic field is generated from the heating coil 3.
The cooking pot 4 is heated due to eddy currents caused by electromagnetic induction.

[0005]

In the above-mentioned conventional configuration, even if an attempt is made to increase the power of the heating means in order to shorten the cooking time, the capacity of the power supply to which the input means 1 is connected is limited. If an attempt is made to use the power supply beyond its capacity, a breaker installed for the purpose of protecting the power supply generally shuts off and cannot perform heating. In the case of a 100 V commercial power supply obtained in a general household, its current capacity is 15 A
In many cases, in which case the maximum is 1500 W
It is difficult to obtain the above heating power.

Accordingly, the present invention solves the above-mentioned conventional problems, and obtains electric power from a plurality of power sources by a plurality of input means and a power integrating means, thereby providing a high-power cooker which cannot be performed by the conventional method. The purpose is to provide.

[0007]

In order to solve the above-mentioned problems, the present invention provides a plurality of input means for inputting power from a power supply, a power integration means connected to the input means and integrating the input power, And a heating means connected to the electric power mixing means for performing heating for cooking.

[0008] Thus, the capacity of each power supply can be integrated into the power integrating means, and the combined large power can be heated.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1, wherein a plurality of input means for inputting power from a power supply, a power integrating means connected to the input means for integrating input power, and the power mixing means And a heating means connected to the heating means for heating for cooking. This makes it possible to perform high-power heating by adding the capacity of each power supply,
It is possible to provide a high-power cooker having excellent features such as short-time cooking.

According to a second aspect of the present invention, in particular, the power integration means according to the first aspect converts AC into DC.
By having the C converter, the total power of each power supply can be obtained without using heavy and expensive components such as a transformer, and a high-power cooker can be realized with an inexpensive and lightweight configuration.

According to a third aspect of the present invention, in particular, the AC-DC converter according to the second aspect has an active circuit for converting an AC input voltage to a DC output current, thereby providing a large power for stable operation. A cooker can be provided.

According to a fourth aspect of the present invention, in particular, the power integrating means according to the first aspect has an active circuit for controlling an AC input current, thereby realizing a high-power cooker with a further inexpensive configuration. be able to.

According to a fifth aspect of the present invention, it is possible to provide a versatile high-power cooker in which the power integration means according to the first aspect comprises a plurality of detachable blocks. it can.

[0014]

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. In FIG. 1, 5
a, 5b and 5c denote a plurality of input means,
a, 6b, 6c. 7 is a power integrating means connected to the plurality of input means, and 8 is a heating means connected to the power integrating means.

In the above configuration, the electric power supplied from the plurality of input means is controlled by the electric power integration means 7 so as not to exceed the capacity of each power supply. The power integrating means 7 sums the supplied electric power and forms the heating means 8
To supply. Therefore, for example, even if the power supply is a 100 V commercial power supply limited by 15 A, the conventional upper limit of 150 V
High power heating of 4500 W far exceeding 0 W can be obtained, and a highly convenient cooker that can cook in an extremely short time can be realized.

(Embodiment 2) Next, a second embodiment of the present invention will be described.

In the case of adding the AC power supplied from a plurality of input means, it is necessary to match the magnitude and phase of the voltage. Therefore, in the conventional technique, the sum is performed using a power supply transformer, but the apparatus is expensive and heavy. As shown in FIG. 2, a power integration means 10 connected to a plurality of input means 9a, 9b, 9c
Is a DC-AC converter 11 for converting AC to DC.
a, 11b, 11c, the high-frequency inverter 1
2. Since the power supplied to the heating means for heating the cooking pot 14 consisting of the heating coil 13 can be added by direct current, it is not necessary to adjust the phase and the power transformer is not required. Therefore, an inexpensive and lightweight high-power cooker can be provided.

(Embodiment 3) Next, a third embodiment of the present invention will be described.

Even when the DC power is added, if the voltages do not match exactly, a reverse flow of the power occurs, so that the control becomes complicated and it is difficult to obtain stability. As shown in FIG. 3, the AC-DC converter includes a gate turn-off bridge 15a and a choke coil 16a.
a, similarly, if there is an active circuit composed of 15b and 16b and 15c and 16c for converting an AC input voltage into a DC output current, each output current is stored in the capacitor 17 so that each input means 18a , 18b, 18c
Can be added together. Therefore, it is possible to provide a high-power cooker that performs stable operation.
19 is a heating coil, 20 is a resonance capacitor, 21 is a switching element, and 22 is a diode. 24 is a power integration means.

(Embodiment 4) Next, a fourth embodiment of the present invention will be described.

As shown in FIG. 4, a power integrating means 25 controls a triac 26a for controlling an AC input current supplied from input means 26a, 26b, 26c, and a choke coil 2.
7a, similarly, if there is an active circuit composed of 26b and 27b, 26c and 27c, the phases are matched by a triac,
Since the output voltage can be adjusted by the choke coil, a power transformer is not required, and the number of power semiconductor elements can be reduced as compared with the configuration of FIG. 3, so that a high-power cooker can be realized with a cheaper configuration. it can. FIG.
And 28a, 28b and 28c are input means. Diode bridge 29 and capacitor 30 are rectifying and smoothing circuits,
1 is a heating coil, 32 is a resonance capacitor, 33 is a switching element, and 34 is a diode, constituting a heating means 35.

(Embodiment 5) Next, a fifth embodiment of the present invention will be described.

As shown in FIG. 5, when the power integrating means comprises a plurality of detachable blocks 36 and 37, it is extremely easy to increase the power of the cooking appliance to a rating according to the application. Therefore, a versatile high-power cooker can be provided. 38a, 38b and 38c are input means. The high-frequency inverter 39 and the heating coil 40 constitute heating means for heating the cooking pot 41.

[0024]

As described above, according to the first aspect of the present invention, it is possible to perform high-power heating by adding the capacities of the respective power supplies, and to provide a high-power cooker having excellent features such as short-time cooking. Can be provided.

[Brief description of the drawings]

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

FIG. 2 is a schematic configuration diagram of a cooker according to a second embodiment of the present invention.

FIG. 3 is a circuit diagram of a cooker according to a third embodiment of the present invention.

FIG. 4 is a circuit diagram of a cooker according to a fourth embodiment of the present invention.

FIG. 5 is a schematic configuration diagram of a cooker according to a fifth embodiment of the present invention.

FIG. 6 is a schematic configuration diagram of a conventional cooking device.

[Explanation of symbols]

 6a, 6b, 6c Power supply 5a, 5b, 5c Input means 7 Power integration means 8 Heating means

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Izumi Hirota 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Masafumi Sadahira 1006 Kadoma Kadoma Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. (72) Inventor Keiichi Sato 1006 Kadoma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Inventor Takeshi Kitaizumi 1006, Odaka Kadoma, Kadoma City, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Takahiro Miyauchi Osaka 1006 Kadoma, Kadoma, Matsushita Electric Industrial Co., Ltd. (72) Inventor Atsushi Fujita Atsushi 1006 Kadoma, Kadoma, Osaka Pref.F-term in Matsushita Electric Industrial Co., Ltd. 3K051 AB08 AC09 CD16 CD33 5G066 LA10

Claims (5)

[Claims] 1. A plurality of input means for inputting power from a power supply, a power integration means connected to the input means for integrating input power, and a heating means connected to the power mixing means for heating for cooking Cooker having means 2. The power integration means converts AC to DC.
The cooker according to claim 1, further comprising a DC converter. 3. The cooker according to claim 2, wherein the AC-DC converter has an active circuit for converting an AC input voltage into a DC output current. 4. The cooker according to claim 1, wherein the power integrating means has an active circuit for controlling an AC input current. 5. The cooking device according to claim 1, wherein the power integration means comprises a plurality of detachable blocks.