JPH0132980Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The invention is an electric cooker that divides the cooking surface into multiple sections and can be used in a variety of ways, with an improved heater control mechanism. be.

(Prior Art) Conventionally, for example, in the case of an electric cooker such as a hot plate, as shown in FIG. A device equipped with a second heater c is known, but this switching is performed by a changeover switch e built into a control section d that includes a temperature regulator, as shown in Figure 6. ing.
That is, the movable contact of the changeover switch e connects the power source, one fixed contact connects to one end of the first heater b, and the other fixed contact connects to one end of the second heater c. Therefore, the rated capacity of the changeover switch e needs to be large enough to correspond to the first heater b, which consumes a large amount of power and uses the entire cooking surface a.

Also, Utility Model Application No. 58-49635 and Utility Model Application No. 57
Japanese Patent No. 99644 discloses an electric cooker in which a plurality of thermally independent cooking surfaces are each provided with a heater and a temperature regulator.

(Problems to be Solved by the Invention) As described above, the conventional electric cooker shown in FIGS. 5 and 6 described above requires a large-capacity changeover switch, and is inevitably expensive.

Furthermore, the conventional electric cookers described in the above-mentioned Japanese Utility Model Application Publication No. 58-49635 and Japanese Utility Model Application Publication No. 57-99644 require two temperature controllers. This again,
It is inevitable that it will be expensive.

Therefore, an object of the present invention is to reduce the capacity of the switching switch in an electric cooker having two cooking surfaces each having a heater, and to use only one temperature regulator.

[Structure of the idea]

(Means for solving the problem) The present invention is a first method that heats a part of a continuous cooking surface.
an electric cooker having a second heater with a small output that heats the remainder of the cooking surface;
By providing a temperature regulator that simultaneously controls the energization of both heaters in response to the temperature of the second heater, and a switch that arbitrarily opens and closes the energization of the second heater, it is possible to control the temperature by opening and closing the second heater. This makes it possible to use the heater in a variety of ways, and also allows temperature control with a single temperature controller even when both heaters are energized at the same time.

(Function) If you close the switch and operate both heaters simultaneously, the entire cooking surface will be heated to a high temperature and you can cook on the entire surface.If you open the switch and stop the second heater, this area will be heated. Heat can be used to keep warm. Moreover, if both heaters are operated simultaneously, the temperature can be adjusted using a single temperature controller, similar to a conventional electric cooker equipped with one high-output heater, and the switch can only be applied to the second, low-output heater. Since it opens and closes, a small capacity is sufficient.

(Example) Hereinafter, the details of the present invention will be described with reference to Examples with reference to FIGS. 1 to 4. Reference numeral 1 denotes an appliance main body having one continuous rectangular cooking surface 2, and two sheathed heaters 3 and 4 are attached to the cooking surface 2. 5 is sheathed heater 3,
This is a connector that connects to each terminal of 4 to supply power to these terminals, and a temperature regulator such as a thermostat 6 and a switch 7 are installed inside. One end of the first heater 3 is connected to one end of the power supply via the temperature controller 6, and the other end is directly connected to the other end of the power supply, and the middle part is bent into a U-shape and forms part of the cooking surface 2. , for example, at a position where approximately half of it can be heated.
One end of the second heater 4 is also connected to one end of the power source via the temperature regulator 6, and the other end is connected in parallel to the other end of the power source via the switch 7, and the intermediate portion is connected to the outside of the first heater 3. It extends and is similarly bent into a U-shape, and is disposed at a position where the remaining portion of the cooking surface 2 can be heated. Further, the extending portion of the second heater 4 where the second heater 4 and the first heater 3 overlap constitutes a terminal rod 8 made of a conductive material such as stainless steel, and serves as a non-heat generating portion.

A heat-sensitive rod 9 is protruded from the connector 5 and is connected thermally conductively to one end of the cooking surface 2 to sense the temperature of the first heater 3 and transmit the temperature to the temperature regulator 6. Both heaters 3 and 4 are connected to the temperature controller 6.
A receiving terminal 10 for feeding power to is built in.

Next, the usage procedure will be described. First, cooking surface 2
When using the entire heater for cooking, it is sufficient to connect the connector 5 connected to the power source to the cooking appliance, close the switch 7, and energize the first heater 3 and the second heater 4 at the same time. In addition, when using with a small number of people, or when heating half of the cooking surface 2 and using the other half for keeping warm after cooking or for low-temperature cooking, open the switch 7 to disconnect the second heater 4, It is sufficient to continue energizing only the first heater 3.

Note that when only the first heater 3 is energized, the temperature characteristics sensed by the heat-sensitive rod 9 are the same as when the first and second heaters 3 and 4 are energized at the same time, and when the first and second heaters 3 , 4 are energized at the same time, the first heater 3
The power consumption of the second heater 4 is set to be larger than that of the second heater 4. Therefore, the temperature regulator 6 senses the heat from the first heater 3 and operates to simultaneously control the energization of the first and second heaters 3 and 4, so that both heaters 3 and 4 are heated. The temperature of each part of the cooking surface 2 can be controlled as desired.

Therefore, the cooking surface 2 can be heated entirely or partially as desired, and the rated capacity of the switch 7 is small because it only needs to open and close the second heater 4, which consumes less power than the first heater 3. It requires only a small capacity and can be used at low cost. Also,
Only one temperature regulator 6 is used, and the temperature of the cooking surface can be well controlled whether only the first heater 3 is energized or both heaters 3 and 4 are energized.

[Effect of idea]

As described in detail above, the present invention includes an appliance main body having a continuous cooking surface, a first heater attached to the main body and heating a part of the cooking surface, and a first heater.
a second heater that is attached to the main body and heats the rest of the cooking surface with a smaller output than the heater; and a temperature controller that simultaneously controls energization of the first heater and the second heater in response to the temperature of the first heater. Since the switch is equipped with a switch that opens and closes electricity to the second heater at will, the switch can be of a capacity corresponding to the second heater with a small output. The temperature can be controlled well and is inexpensive whether only one heater is energized or both heaters are energized.

[Brief explanation of drawings]

Fig. 1 is a plan view of an electric cooker showing an embodiment of the present invention, Fig. 2 is an enlarged plan view of the heater section, Fig. 3 is an electric circuit diagram, and Fig. 4 is a partially cutaway plan view of the temperature controller. FIG. 5 is a plan view showing a conventional example, and FIG. 6 is a plan view showing a conventional example.
The figure is also an electrical circuit diagram. DESCRIPTION OF SYMBOLS 1... Appliance body, 2... Cooking surface, 3... First heater, 4... Second heater, 6... Temperature controller, 7... Switch, 9... Heat-sensitive rod.

Claims (1)

[Scope of utility model registration request] an appliance main body having a continuous cooking surface; a first heater attached to the main body for heating a part of the cooking surface; 2nd to heat the rest
a temperature regulator that simultaneously controls energization of the first heater and the second heater in response to the temperature of the first heater, and a switch that arbitrarily opens and closes energization of the second heater. An electric cooker characterized by comprising: