JPS61100207A - Electric kettle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to an electric pot for general household use.

Structure of conventional example and its problems As shown in FIGS. 1 to 5, this kind of conventional electric pot has a heating element on the back side of a pot 1 whose outer periphery is raised upward to form an edge 1a. 2, and the supply of electricity to the heating element 2 was generally controlled by an automatic temperature controller 3. However, with this configuration, during cooking, since water is in the pot 1, the temperature of the pot 1 only rises to about 1oO"C, and as a result, it is set to operate at over 100"C. The automatic temperature controller 3 will not operate. As a result, the vessel boils continuously, and power consumption is generally relatively high in order to speed up the rise time during cooking, resulting in violent boiling. Therefore, if you are eating slowly, the boiling will be too intense and the water will evaporate, causing the food to boil.
It was extremely inconvenient to use. Also, even when cooking dishes that are simmered for a long time, such as stews or boiled beans, the boiling is too intense, so it boils down in a short period of time, causing the pot to burn and making it difficult to cook properly. It also had Therefore, there is a method of lowering the operating temperature setting of the automatic temperature controller 3 and mechanically energizing it intermittently, but as shown in FIG. In addition, since the ON and OFF cycles are long, it takes a long time for no arc to rise, making it inconvenient to use. Another possibility is to conduct electricity intermittently for a relatively short period of time, for example, for 2 to 3 seconds, but in this case, the structure becomes complicated and assembly is difficult. It ends up being expensive.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional problems, and aims to provide an electric pot that is easy to use, easy to assemble, and inexpensive.

Structure of the Invention In order to achieve the above object, the electric pot of the present invention includes a pot whose outer periphery is raised upward to form an edge, and first and second heating islands provided on the back side of the pot. (・□ body, and a main circuit that connects the first heating element alone or the first and second heating elements in parallel, and a subcircuit that connects the twentieth heating element alone, and the main circuit and the second heating element are connected in parallel. The sub-circuit is configured to be switchable, and the power consumption of the sub-circuit is made smaller than the power consumption of the main circuit, and the power consumption is the minimum required to boil the food in the pot. According to the configuration, the power consumption of the sub circuit is set to the minimum power consumption required to boil the food in the pot, so when cooking, the main circuit is used for cooking, and then when eating slowly, the sub circuit is used. By switching to , you will no longer have to boil violently and the food will boil over, and you can also cook dishes that are simmered for a long time, such as stews and boiled beans, at a lower cost. Since it is extremely simple, it is easy to assemble.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 6 to 10, 11 is a pot whose outer periphery is raised upward to form an edge 11&, 12 is a first heat generating unit provided on the back side of the pot 11, and 13 is a pot on the back side of the pot 11. The second heating element provided, 14, is the first heating element. This is an automatic temperature regulator that controls the supply of electricity to the second heating element 12.13. In terms of an electric circuit, as shown in FIG. 9, the first heating element 12 and the second heating element 13 are connected in parallel to the AC power source 15, and the first heating element A single-pole, double-throw changeover switch 16 is connected to the connection point of the heating element 13, and the common terminal 16a of this changeover switch 16 is connected to the AC power supply 15, and one of the fixed terminals 16
b is connected to the first heating element 12, and the other fixed terminal 15C is connected to the second heating element 13. The first heating element 12 constitutes the main circuit, and the second heating element 1
3 constitutes a sub-circuit. In this case, the power consumption of the sub-circuit is made smaller than the power consumption of the main circuit, and the pot 11
It uses minimal power to boil the food inside.

The operation in the above configuration will be explained. When cooking with water in the pot 11, the selector switch 16 is connected to one fixed terminal 1.
6b, and cooking is performed using the main circuit consisting of the first heating element 12, which consumes a large amount of power.

When having a meal together, the selector switch 16 is switched to the other fixed terminal 16C, and the food is heated by the subcircuit consisting of the second heating element 13, which consumes less power. In this case, the power consumption of the subcircuit is set to the minimum power consumption required to boil the food in the pot 11, so that the boiling becomes the minimum boiling as shown in FIG. 10, and as a result, There is no chance that the food will boil over,
This makes it very easy to use. Stew again.

Even when cooking dishes such as boiled beans that are simmered for a long time, by using the subcircuit, the food can be cooked well without boiling down. According to experiments conducted by the present inventors, the power consumption of the sub-circuit is 600~soo when the water volume is 11~2e in an aluminum pot.
If w is appropriate, on the other hand, if the amount of water is less than 1e, 40
0 to eoow was suitable, but this can be determined by taking into account the size of the pot, the type of food, etc.

In addition, since only one heating element is added to the back of the pot 11 and a changeover switch 16 is provided to switch between the main circuit and the sub-circuit, the cost is reduced compared to electrical control. In addition, the ease of assembly can be improved by simplifying the configuration.

In the above embodiment, a case has been described in which the main circuit is composed of only the first heating element 12, but as shown in FIG. By closing the single-pole, single-throw changeover switch 17 provided between the two, the main circuit is made up of the first heating element 12 and the second heating element 13 connected in parallel. In this case, when the changeover switch 17 is opened, the sub-circuit consisting of the second heating element 13 with low power consumption is energized. Also in this case, the power consumption of the second heating element 13 is smaller than the power consumption of the first heating element 12, and the power consumption of the subcircuit is set to the minimum power consumption for boiling the food in the pot 11. , the same effects as those of the above-mentioned embodiment are achieved.

Effects of the Invention As described above, according to the present invention, the main circuit and the sub-circuit are configured to be switchable, the power consumption of the sub-circuit is made smaller than the power consumption of the main circuit, and the food in the pot boils. It is configured to consume minimal power, so when cooking in the main circuit, if you are going to have a meal afterwards, switch to the sub circuit to keep the food boiling violently. It no longer boils down, and you can cook dishes such as stews and boiled beans for a long time, and it can be obtained at a low cost, and its structure is extremely simple, so it is easy to assemble. It is something.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a conventional electric pot with an automatic temperature controller attached, Fig. 2 is a sectional view of the electric pot, Fig. 3 is a bottom view of the same, Fig. 4 is a circuit diagram of the same, and Fig. 4 is a circuit diagram of the same. Figure 5 is a graph showing a temperature curve when the temperature is mechanically adjusted; Figure 6 is a cross-sectional view showing a state in which an automatic temperature controller is attached to an electric pot in an embodiment of the present invention;
Figure 7 is a cross-sectional view of the electric pot, and Figure 8 is the current one.
1i side view, FIG. 9 is the same circuit diagram, FIG. 10 is a graph showing a temperature curve when the sub-circuit is energized, and FIG. 11 is a circuit diagram showing another embodiment. 11... Pot, 11 &... Edge, 12...
...First heating element, 13...Second heating element, 1
6.17......Selector switch. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 1fα Figure 4 Figure 5) 'lj Figure 7 Figure 10 Figure 11

Claims (1)

[Claims] It has a pot whose outer periphery rises upward to form an edge, and first and second heating elements provided on the back side of the pot, and the first heating element alone or the first and second heating elements. A main circuit for connecting the heating elements in parallel and a sub-circuit for the second heating element alone are provided, and the main circuit and the sub-circuit are configured to be switchable, and the power consumption of the sub-circuit is equal to the power consumption of the main circuit. An electric pot that is smaller and configured to consume minimal power to boil the food in the pot.