JPS63292919A - Control apparatus of jar pot - 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 the Invention The present invention relates to a control device for a jar pot for safely operating the jar pot.

BACKGROUND OF THE INVENTION In a conventional jar pot control device, when AC power is input, the heater driving means is controlled so that the heater is energized regardless of whether the lid is opened or closed, A boiling detection means for detecting the boiling state of water based on the temperature of the water vapor passing through the interior is provided to control the heater drive means to proceed to the heat retention step.

Problems to be Solved by the Invention With such conventional jar pot control devices, the water boils even when the lid is open, and the user may not be able to open the jar pot without knowing that the lid is open. There were safety issues such as people getting burnt if they fell over. Further, in the method in which the boiling detection means detects water vapor passing through the inside of the lid, boiling cannot be detected if the lid is left open.

The present invention solves the above conventional problems, and when the lid is open, it is notified that the lid is open, and the heater is not energized, thereby ensuring the safety of the user. The object of the present invention is to provide a control device for a jar pot.

Means for Solving the Problems In order to solve the above problems, the present invention provides a main heater that heats water through a heating wire, a heat-retaining heater that heats the water and keeps it warm, and a lid opening/closing detection means that detects whether the lid is opened or closed. a boiling detection means for detecting whether the water has boiled; a heater driving means for driving the heater; a lid open notification means for notifying that the lid is open; and the lid opening/closing detection means and the boiling detection means. a control means that inputs the output of the means, and controls the heater driving means so that when the lid is open, the lid open notification means notifies the main heater of the main heater and only the heat-retaining heater is energized; It is equipped with the following.

Effects With the above configuration, when the lid is open, it is notified that the lid is open, and only the heat insulating heater is energized, so the water will not boil with the lid open, and the user will Safety can be ensured. In addition, since the main heater is not energized unless the lid is closed, a system in which the boiling detection means detects the temperature of the water vapor passing inside the lid can always detect the boiling state. Accidents caused by not knowing how to boil can be prevented.

Example Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. Reference numeral 1 denotes an AC power supply detection means, which detects whether or not AC power is input.

Reference numeral 2 denotes a lid opening/closing detection means, which detects whether the lid is opened or closed. 3 is a boiling detection means, which detects whether the water has boiled or not. 4 is a control means into which the outputs of the AC power supply detection means 1, the lid opening/closing detection means 2, and the boiling detection means 3 are input, and when the AC power is input and the lid is open, the lid is open. This is notified by the lid open notification means 5, and the heater drive means 6 is controlled so that the main heater 7a is not energized and only the heat retention heater 7b is energized. Further, when the boiling detection means 3 detects that the water is boiling, the control means 4 controls the heater driving means 6 to maintain the water temperature.
control.

FIG. 2 is a circuit diagram showing a specific configuration of this embodiment.

8 is the lid of the jar pot, 9 is the main body of the jar pot, and 10 is a microcomputer.

A switch 11 as the lid opening/closing detection means 2 shown in FIG. 1 is fixed to the main body portion 9, and when the lid 8 is closed, the switch 11 is
When the movable part 11a of the switch 11 is pressed, the contact 11b of the switch 11 closes, and conversely, when M8 is open, the movable part 1 of the switch 11 closes.
Since 1a is not pressed, the contact 11b of the switch 11 is in an open state, and the open/closed state of the lid is input to the input section 10a of the microcomputer IO.

Further, the output of the AC power supply detection means 1 which detects whether AC power is being input and the output of the boiling detection means 3 which detects whether the water is boiling are also input to the input section 10a. Based on these input signals, the arithmetic control unit IQb of the microcomputer 10 controls the output unit 10d based on the program stored in the storage unit 10c, and controls the main heater 7a and The heat retaining heater 7b and the buzzer 12 are driven. Here, the opening/closing state of the contact 11b of the switch 11 depending on the opening/closing of the lid 8 may be reversed to that described above, and in short, it is sufficient if the state corresponding to the opening/closing of the lid 8 can be fixed.

Next, the operation of this embodiment will be explained. FIG. 3 shows the main part of a flowchart controlled by the microcomputer IO. First, in step 20, the AC power detection means 1 detects whether AC power is input, and the output is the input to the microcomputer 10. The data is input to the section 10a.

As a result, if AC power is input, step 21
Whether the lid 8 is closed or not is determined from the open/closed state of the contact 11b of the switch 11 as the lid opening/closing detection means 2 inputted to the input section 10a. If the lid 8 is open, in step 22, the calculation control section 10b controls the output section 10d to output a signal to the lid open notification means 5 and the heater drive means 6,
Sounds the buzzer 12 to notify that the lid 8 is open,
Further, the main heater 7a is not energized, and only the heat-retaining heater 7b is energized. If the lid 8 is closed, in step 23, a signal indicating the boiling state of the water detected by the boiling detection means 3 is inputted to the input section 10a, and it is determined whether the water is in the boiling state. Here, when the boiling detection means 3 is of a type that detects water vapor passing through the inside of the lid 8,
Since it is detected in step 21 that the lid 8 is closed, boiling can always be detected. If the water is not boiling, in step 24, the arithmetic control section 10b controls the output section 10d based on the signal from the input section 10a, and the output section 10d energizes the main heater 7a via the heater drive means 6. , proceed to step 20 and repeat the above operations. Further, when the water is boiling, in step 25, the arithmetic control section tab controls the output section 10d using the signal from the input section 10a, and the output section 10d is controlled via the heater driving means 6 so as to maintain a warm state. Then, only the heat-retaining heater 7b is energized, and the heat-retaining process begins. Then, proceed to step 20 and repeat the above operations. Here, the buzzer 12 may be of any type, such as a lighted LED, as long as it can notify the user.

According to the above embodiment, even if the user inputs AC power with the lid 8 open, the user is notified that the lid 8 is open and stops energizing the main heater 7a, turning only the insulating heater 7b on. Since the water is energized, the water will not boil with the lid open, and even if the user accidentally knocks over the jar pot with the lid open, there will be no burns, so it is safe. becomes more sexual. In addition, when boiling is detected by water vapor passing through the inside of the lid 8, the lid 8
When the M8 is open, water vapor cannot pass through the inside of the M8, so boiling cannot be detected. However, according to this embodiment,
Since the main heater 7a and the heat-retaining heater 7b are energized only when the lid 8 is closed, boiling can always be detected.

Effects of the Invention As described above, according to the present invention, when AC power is input and the lid is open, it notifies you that the lid is open, and stops energizing the main heater, allowing only the insulation heater to function. The lid open notification means and the heater drive means are controlled so that the water is energized, and when the water is boiling, the heater drive means is controlled so that the water is kept warm. Even if you input AC power to the unit, it will notify you that the lid is open and will stop energizing the main heater and will only energize the insulating heater, so the water will no longer boil when the lid is open. There are no longer any accidents where someone accidentally knocks over the lid without knowing it is open and suffers burns, making it extremely safe. In addition, with the boiling detection method that detects water vapor passing through the inside of the lid, the heater is energized after confirming that the lid is closed, so boiling can always be detected and it is possible to proceed to the warming process. This eliminates unnecessary power consumption. In addition, when the lid is open, only the heat insulating heater is energized, so when the user notices this and closes the lid, it helps to shorten the time it takes for the water to boil.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a control device for a jar pot showing an embodiment of the present invention, FIG. 2 is a specific circuit diagram of the control device, and FIG. 3 is a flowchart of the main parts. 1... AC power supply detection means, 2... Lid opening/closing detection means. 3... Boiling detection means, 4... Control means, 5...
Lid open notification means, 6... Heater drive means, 7a... Main heater, 7b... Heat retention heater, 8... Jar pot lid, 10... Microcomputer, 11... Switch, 12 ...buzzer number one

Claims (1)

[Claims] 1. A main heater that heats and boils water, a heat-retaining heater that heats and keeps water warm, a lid opening/closing detection means that detects whether the lid is open or closed, and a boiling detection means that detects that the water has boiled; The outputs of the heater drive means for driving the main heater and the heat retention heater, the lid open alarm means for notifying that the lid is open, the lid opening/closing detection means, and the boiling detection means are input, and when the lid is open, A control device for a jar pot, comprising: a control means for notifying with the lid open notification means and controlling the heater drive means so as to stop energizing the main heater and energize only the warming heater.