JPH02280728A - Electrical water heating device - Google Patents

Abstract

PURPOSE:To prevent a user from erroneously use the water having low or high temperature by detecting the boiling of the water in a container and prohibiting the supply of the hot water until the water in the container boils. CONSTITUTION:When operation starts, a hot water supply-prohibiting means 7 prohibits the supply of hot water, and a heating means 2 heats the water in a container 1. Then, a boiling detecting means 4 judges if the water in the container 1 boils or not, and when boiling does not occur, heating is continued to boiling, while if boiling is judged, the prohibition by the hot water supply- prohibiting means 7 is released, and a user can use the hot water supplied from a hot water supply means 5. Then the temperature is kept constant by a control mean 6 and the temperature of the water in the container 1 is monitored by a temperature detecting means 3, and if the water temperature lowers, the supply of hot water is prohibited again, and the rise of temperature to boiling is carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a heat-retaining electric water heater (
(generally referred to as an electric jar pot, etc.).

BACKGROUND OF THE INVENTION In recent years, heat-retaining electric water heaters (hereinafter referred to as "sleepy jar pots") have come into widespread use in general households. This electric jar pot automatically boils water and keeps it warm when the user fills it with water and applies AC power.In order to dispense hot water, the user needs to use the knob provided on the lid of the electric jar pot. Although the pneumatic type has been widely used, recently electric hot water dispensers using a pump have also become available.

Problems to be Solved by the Invention In such conventional electric jar pots, water or hot water can be dispensed regardless of whether the water in the container boils or not. The problem was that the water in the front was coming out.

In view of such conventional problems, the present invention aims to prevent water from being discharged before it boils.

Means for Solving the Problems In order to achieve the above objects, the present invention uses as an input the output of a boiling detection means for detecting whether water in a container has boiled,
The hot water supply means is provided with a hot water dispensing means for prohibiting hot water dispensing until the water in the container reaches a boiling point.

action With the above configuration, there is an electric water heater of the present invention.

Since the user cannot dispense hot water until the water in the container boils, it is difficult to solve the problem of accidentally using low-temperature water or hot water.

Embodiment 1 An electric water heater according to an embodiment of the present invention will be explained using the attached color plane.

The first factor is a blockage factor in the electric water heater according to an embodiment of the present invention. 1 is a container in which water is stored. 2 heats the volume @1 with a heating means. 3 is a temperature detection means and container 1
By detecting the temperature of the water in the container 1, the temperature of the water in the container 1 is detected. 4 is a boiling detection means which uses the output of the temperature detection means 3 as an input and detects whether the water in the container 1 has boiled.

Reference numeral 5 denotes a hot water dispenser, which is used by the user to dispense water (intestine) from the container 61. Reference numeral 6 denotes a control means which inputs the outputs of the temperature tIL detection means a and the boiling detection means 4, and controls the heating means 2 to boil the water in the container s1 and thereafter maintain it at a constant temperature. Reference numeral 7 denotes an AISA stop means which inputs the output of the RAM detection means 4 and outputs it to the hot water tapping means 6 until the water in the container 1 boils, thereby prohibiting hot water from being poured.

Next, the operation of the electric water heater having such a configuration will be explained using FIG. 2. Figure 'IIk2 is a flowchart of the operation of an electric water heater according to an embodiment of the present invention.

When the operation starts, first, in step 11, the hot water dispensing prohibition means 7 prohibits hot water dispensing. Next, in step 12, the water in the container 1 is heated by the heating means 2. Next, in step 1a, the boiling detection means 4 determines whether the water in the container 1 has boiled. If it still boils and there is no problem, return to step 12 and continue heating until it boils. If it is determined in step 13 that the hot water has boiled, the prohibition by the transfer hot water prohibition means 7 is canceled in step 14, and the user is allowed to pour hot water. Next, in step 16, the control means 6 directly maintains the temperature at a constant temperature.

Step 16 is Yo! Water for s1 yen! The change in temperature is monitored by the temperature detection means 3, and if the water temperature drops, for example, if the user replaces or refills the water in the container 1, the process returns to step 11, and the hot water is prohibited and boiled. It has become. In this way, the electric water heater of this embodiment does not allow hot water to be dispensed until it boils.

Incidentally, the temperature of the water in the container 61 may be detected by the am detection means 3 before step 11 or step 12 in FIG. 2, and if the temperature is below a certain temperature, the process may proceed to step 14. -0 Effects of the Invention As described above, according to the present invention, the user cannot dispense hot water until the water in the container boils, so there is no possibility of accidentally using low-temperature water or hot water. It is possible to provide an electric water heater that is very useful in terms of use and does not cause storage.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an electric water heater according to an embodiment of the present invention, and a second block diagram is an operation flowchart of the electric water heater. 1... Capacity@, 2-... Heating means, 3-...
...temperature detection means, 4---boiling detection means, 6
... Hot water supply means, 6... Control means, ? −
...Means for prohibiting access to hot water. Name of agent: Patent attorney Shigetaka Awano and one other person

Claims (1)

[Claims] A container for storing water, a heating means for heating the container, a temperature detection means for detecting the temperature of the water or the container, and an output of the temperature detection means is input, and the water in the container is boiled. a boiling detection means for detecting whether the water in the container is boiling, a hot water dispensing means for discharging the hot water in the container, and outputs of the temperature detection means and the boiling detection means as inputs to control the heating means and to control the water in the container. an electric water boiler comprising: a control means for boiling water and thereafter maintaining the temperature at a constant temperature; and a hot water dispensing means that inputs the output of the boiling detection means and outputs the output to the hot water dispensing means until the water in the container boils, thereby prohibiting hot water dispensing. vessel.