JPH0130913Y2 - - Google Patents

Description

[Detailed Description of the Invention] Field of Industrial Application The present invention relates to an improvement of an electric cooking table.

〓Conventional technology〓 Various types of electric heating cooking utensils have been put into practical use and in widespread use.These electric heating cooking utensils are easy to control the temperature according to the purpose of cooking, and are much more advanced than using other heat sources such as gas. It is known that safety can be improved.

〓Problems that the invention aims to solve〓 However, these conventional electric heating cooking utensils are manufactured to suit a single cooking purpose, and they also incorporate various control circuits and control devices. Therefore, the range of use is limited and it is expensive, which is why it is currently used only as an auxiliary cooking utensil in Japan.

The present invention was devised in view of the above-mentioned drawbacks, and aims to provide a safe and inexpensive electric cooking table by systematizing the cooking table and various electric cooking utensils.

〓Means for Solving the Problem〓 In line with the above-mentioned purpose, the configuration of the present invention, which is based on the above-mentioned utility model registration claims, is to solve the above-mentioned problem. A plurality of power supply control circuits 14 are arranged so as to cut off the power supply to the anode side power supply circuit 7 when the temperature detection signal value exceeds the temperature detection signal value of . The power plugs 12a, 12 having thermistors 28
b, 12c..., and the heating cooking utensil 20 has a power outlet 21 shaped so that any one of the power plugs 12a, 12b, 12c... can be connected to the cooking utensil 20.
and an electric heating tool 22 whose one end is connected to the power outlet 21 and the other end is connected to the ground side electrode 23 exposed from the bottom surface, and when the heating cooking tool 20 is placed on the cooking table 1, the electric heating tool 22 This is a technical measure in which a ground electrode top plate 2 is arranged to which 22 ground side electrodes 23 are electrically connected.

〓Function〓 Therefore, the electric cooking table of the present invention has each heating cooking utensil 20.
When placed on the cooking table 1 and connecting any one of the power plugs 12a, 12b, 12c, . . . to the power outlet 21, the electric heating tool 22 can be energized.

This energization is carried out by each power supply control circuit 14.
Since it is set to cut off the power supply to the anode side power supply circuit 7 when the temperature detection signal value exceeds a predetermined temperature detection signal value,
Each heating cooking utensil 20 has a connected power plug 12.
It is possible to obtain the predetermined temperature conditions set in each power supply control circuit 14 corresponding to each of the power supply plugs 12a, 12b, 12c... Since the power outlet 21 that can be connected to only one of the heating cooking utensils 20 is arranged, when the power plug 12a, 12b, 12c, etc. that is compatible with each heating cooking utensil 20 is selected, each heating cooking utensil 20 is connected to the power outlet 21 necessary for the cooking purpose. This makes it possible to reliably select suitable heating temperature conditions.

〓Example〓 Next, an example of the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, reference numeral 10 denotes a power supply box, which is placed on the wall of the kitchen, etc., and its input terminal is connected to a transformer 5 connected to the commercial power input terminal 3.
The anode side power supply circuit 7, which is one output terminal of the transformer 5, is connected to the anode side power supply circuit 7, and the other output terminal 6 of the transformer 5 is grounded.

In the power supply box 10, each of the anode side power supply circuits 7
A plurality of power supply control circuits 14 are provided, each of which is set to cut off power to the
Each power plug 12a has a thermistor 28 and is shaped so that it can be connected only to a specific outlet.
12b, 12c... are connected.

The power supply control circuit 14 is a conventionally known circuit that amplifies the temperature detection signal from the thermistor 28 and opens and closes the anode side power supply circuit 7, and each power supply control circuit 14 operates at a specific temperature detection signal value. Either the anode side power supply circuit 7 is fixedly set to be open, or
Each range is within a certain range, specifically, the range where the temperature detection signal value corresponds to 0℃ to 80℃, and the temperature detection signal value is within a certain range.
A set temperature regulator 11 that can adjust the set value only within a range corresponding to 80°C to 120°C is connected. In addition, in implementation, a timer 13 is connected to this power supply control circuit 14 so that it can be used in combination to control the opening and closing of the anode side power supply circuit 7 according to time, and a temperature detection signal from the thermistor 28 is displayed. A thermometer 15 may be provided.

In addition, the power plugs 12a, 12b, 12c
In the illustrated example, the plug electrode rod 27 has a different cross-sectional shape, and the power outlet 21 of the heating cooking utensil 20 is connected to the cooking purpose of the heating cooking utensil 20, for example, to boil water for a kettle 20b, etc. An outlet hole 24 is provided into which only a plug electrode rod 27 having a specific cross-sectional shape is inserted, depending on whether it is used for the intended purpose or for high-temperature cooking such as the tempura pot 20a. That is, specifically, the power plug 12a is heated to 50°C by the set temperature regulator 11.
~80℃ range, power plug 12b is 0℃~200℃
℃ range, the power plug 12c has each power supply control circuit 1 that can set temperature conditions in the range of 80℃ to 120℃.
Although not clearly shown in the figure, the power plug 12a has a flat plate-shaped plug electrode 27, the power plug 12b has a triangular prism-shaped plug electrode 27, and the power plug 12c has a triangular prism-shaped plug electrode 27. Assuming that a cylindrical plug electrode rod 27 is arranged, the kettle 20b does not need to be heated above 100°C, so this power outlet 21 is circular so that only the power plug 12c can be connected to it, and the other power plugs 12a and 12b cannot be connected. Since the tempura pot 20a requires a cooking temperature of 180°C to 200°C, the power plug 12 is connected to the power outlet 21.
A triangular outlet hole 24 is arranged to which only b is connected. Note that regardless of the shape of the plug electrode rod 27, the power plugs 12a, 12b, 12c...
It goes without saying that the external shapes of the insertion portions may be made to be different from each other, and the power outlet 21 on the side of the heating cooking utensil 20 may be configured such that only power plugs 12a, 12b, 12c, . . . of a specific shape can be inserted therein. The thermistors 28 disposed in the power plugs 12a, 12b, 12c, . . . may be made of various elements whose electrical resistance value changes depending on the temperature.

The heating cooking utensil 20 used in the present invention includes a power outlet 21 having a shape to which any one of the power plugs 12a, 12b, 12c, etc. can be connected, one end of which is connected to the power outlet 21, and the other end of the heating cooking utensil 20 used in the present invention. An electric heating tool 22 connected to a ground electrode 23 exposed from the bottom surface is arranged. This heating cooking utensil 2
0 is made of a heat-resistant, non-conductive material such as pottery, ceramic, glass, etc., and has the electric heating tool 22 arranged at a desired position inside. In addition, this electric heating tool 22
may be embedded in the bottom or wall surface of the heating cooking utensil 20, and it is preferable to arrange a heat insulating material on the outer surface side of the electric heating utensil 22 to increase thermal efficiency.

Furthermore, the present invention disposes the cooking table 1 near the grounding position of the power supply box 10, and the cooking table 1
When the heating cooking utensil 20 is placed on the
A ground electrode top plate 2 is disposed to which the ground side electrodes 23 of the two electric heating tools 22 are electrically connected.

In the figure, 4 indicates a fuse, and 25 indicates an insertion hole for the thermistor 28.

Effects of the invention The electric cooking table of the present invention has a structure in which the power control circuit 14 is provided in the power supply box 10 as described above and is used for multiple heating cooking utensils 20.
As a whole, an electric cooking table that uses many types of cooking utensils can achieve economical equipment costs.

Further, the present invention provides each of the power supply control circuits 14 as follows:
There are two types: low-temperature (used to keep warm and do not heat above 100℃), medium-temperature (mainly used to boil water, and heated only to around 100℃),
For high temperatures (used for normal high temperature cooking,
(Those that heat only up to about 220℃ [below the ignition temperature of oil]) and those for ultra-high temperatures (those that are used for frying vegetables, meat, etc. and that heat up to over 300℃)
Almost all heating cooking can be done by preparing a power supply control circuit 14 for multiple heating cooking utensils 20,
1 is a power plug 12 of a power supply box 10;
A, 12b, 12c... can only be connected to a specific one, so if you select a cooking utensil with a general shape depending on the purpose of cooking, the temperature conditions for its use will be determined and the tempura oil will be heated. It is possible to provide an electric cooking table that can reliably prevent accidents such as the above.

Although the ground electrode top plate 2 is exposed and has a chance of contact, it is safe because it is on the ground side, and if low voltage current is used, the human body with a relatively high resistance value is considered insulating, so in the unlikely event that This also prevents the risk of electric shock in the event of an electric shock.

Moreover, the present invention has an electric heating tool 2 in the heating cooking tool 20.
2 is stored, there is no open flame or other source of fire outside the heating cooking utensil 20, and the amount of heating of the ground electrode top plate 2 due to the heat generated by the electric heating device 22 is negligible. Therefore, it is possible to provide an electric cooking table that is safe even if a human body or combustible material comes into contact with the ground electrode top plate 2.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the electric cooking table of the present invention, and FIG. 2 is a sectional view of the main parts. 1... Cooking table, 2... Ground electrode top plate, 7... Anode side power circuit, 10... Power supply box, 12
a, 12b, 12c...Power plug, 14...Power supply control circuit, 20...Heating cooking utensil, 21...Power outlet, 22...Electric heating tool, 23...Ground side electrode, 28...Thermistor.

Claims (1)

[Scope of Claim for Utility Model Registration] The power supply box 10 is provided with a plurality of power supply control circuits 14, each of which is set to cut off the power supply to the anode side power supply circuit 7 when the temperature detection signal value exceeds a specific value. The power supply control circuit 14 includes power supply plugs 12a, 12b, 12c each having a thermistor 28 and each having a shape that can be connected only to a specific outlet.
..., and the heating cooking utensil 20 has the power plug 12a,
12b, 12c... A power outlet 21 having a shape that can be connected to one of them, and the power outlet 2.
1, and the other end is connected to a ground side electrode 23 exposed from the bottom surface, and when the heating cooking utensil 20 is placed on the cooking table 1, the ground side electrode of the electric heating tool 22 is connected to the cooking table 1. An electric cooking table comprising a ground electrode top plate 2 to which 23 is electrically connected.