JPS62163034U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an electric pot according to the present invention, FIG. 2 is a block diagram of an electric pot showing another embodiment, FIG. 3 is a flowchart thereof, and FIG. 4 is a diagram showing the structure of the electric pot according to the present invention. 1 is a schematic diagram of an electric pot showing another embodiment of the invention. 1... Conductive container, 2... Conductive water pumping pipe (reference water level setting electrode), 3... Insulating tube, 4, 4a, 4
b...Temperature sensor, 5...Band heater, 5a...Main heater, 5b...Sub-heater, 11...Microcomputer, 12...Switching element, 13...Water level detection means, 14a...First power control means, 14b...Second power control means, 15...timer, 24...dry firing detection means, 25...dry firing prevention reference temperature setting means;
26... Comparator.

Claims (1)

[Claims for Utility Model Registration] (1) A water level detection means 13 that detects a preset reference water level in the container 1, and a signal from the water level detection means 13 or the boiling detection means 35 to energize the main heater. The temperature detected by the first power control means 14a that is stopped, the second power control means 14b that controls on/off the energization of the sub-heater 5b based on the signal from the heat retention temperature detection means 30, and the temperature detected by the temperature sensor 4a is set in advance. Dry firing prevention standard temperature T
When the power reaches ₂ or more, the first power control means 14a
and a second power control means 14b, and an empty heating detection means 24 for maintaining the heater in a stopped state. (2) a conductive water pump 2 in which the water level detection means 13 is electrically insulated from the container and whose lower end terminates at a position approximately equal to the upper end of the band heater;
Utility model registration claim 1 comprising a pulse voltage generation circuit 16 that applies a voltage between the lifting pipe 2 and the container, and a voltage detection circuit 17 that detects the voltage between the container and the lifting pipe 2. Electric pot as described in section. (3) The water level detection means 13 is a voltage detection circuit 17
2. An electric pot according to claim 2, which is provided with a filter 18 that outputs an output only when two consecutive signals outputted intermittently from the electric pot coincide with each other. (4) The dry moxibustion detection means 24 includes a temperature sensor 4a attached to the bottom of the container, a dry moxibustion prevention reference temperature setting means 25 that sets a dry moxibustion prevention reference temperature, and a temperature detected by the temperature sensor and a dry moxibustion Utility model registration claims 1 to 3 comprising a comparator 26 which outputs an output to the second power control means 14b when the detected temperature reaches the dry firing prevention reference temperature or higher by comparing the temperature with the prevention reference temperature. An electric pot as described in any one of the paragraphs.