JPH05115367A - Electric kettle - Google Patents

Abstract

PURPOSE:To provide an electrical kettle which can discharge the hot water having the same temperature as the inside even when the retaining condition of temperature is kept for a long time. CONSTITUTION:A changeover means 4 is provided with a solenoid valve. A delivery means 3 is connected to the suction path 4b. The delivery side of the change over means 4 can be changed over by the solenoid valve to the inner side path 4c or the outer side path 4d. A controller 5 is provided with a timer 6 and a driving means 7. The time necessary for changeover from the inner path 4c to the outer path 4d of the changeover means is measured by the timer 6. The delivery means 3 is driven by the driving means 7. The changeover means 4 is usually shifted to the inner side path 4c of the vessel 1. The timer 6 starts counting by the manipulation of a delivery means 8 of hot water and the hot water is delivered to the inner side path 4c and circulated until a specified time is counted by the delivery means 3, and after the specified time, the hot water is delivered to the outer side path 4d until the manipulation of the delivery means 8 is brought to a stop.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric water heater that heats and keeps water in a container.

[0002]

2. Description of the Related Art Conventionally, an electric water heater of this type has generally been kept at a temperature after being boiled and then pumped from the bottom of a container by using an air pump or an electric pump, and then discharged directly from a discharge port. ..

[0003]

However, in the above-mentioned conventional structure, when the heat retention state continues for a long time, the temperature of the hot water in the discharge pipe connected to the discharge port from the bottom of the container is lower than that in the container. However, since the hot water in the discharge pipe is discharged at the beginning of the hot water, there is a disadvantage that the warm water is discharged as the first hot water even though the hot water is discharged immediately after boiling.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide an electric water heater capable of discharging hot water at a temperature equivalent to that in the container even when the temperature is kept for a long time. To do.

[0005]

In order to achieve the above object, the present invention is a control having a container for containing hot water, a discharging means for pumping out the hot water in the container, and a driving means for driving the discharging means. And a hot water output means for outputting a hot water output signal to the control means, and a switching means that is connected to the discharge means and switches a hot water discharge path of hot water pumped by the discharge means to an inner path and an outer path of the container. A configuration is provided in which the control means has a time measuring means for measuring the time until the inner path of the switching means is switched to the outer path, and after the time measuring means measures a predetermined time, the hot water supply path of the switching means is switched. have.

[0006]

With the above structure, the driving means drives the discharging means by the output of the hot water discharging means, the hot water in the container is circulated initially, and the time measuring means measures the predetermined time, and then the hot water discharging path of the switching means is set to the inner path. By switching from the outer path to
From the beginning, hot water in the container is discharged.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in the figure, the hot water 2 in the container 1 is pumped up from the lower part to the upper switching part 4 by the discharging means 3. The switching means 4 has an electromagnetic valve 4a, the suction means 4b is connected to the discharge means 3, and the discharge side of the switching means 4 is closed by the electromagnetic valve 4a on one side.
The inside path 4c and the outside path 4d are switched. The control means 5 has a time measuring means 6 and a driving means 7. The time measuring means 6 is switched by the operation of the hot water discharging means 8.
The time until the inner path 4c is switched to the outer path 4d is measured, and the driving means 7 drives the ejection means 3. The switching means 4 is normally switched to the inner path 4c of the container 1, and when the hot water discharging means 8 is operated, the time measuring means 6
Starts to measure the time, and when the predetermined time has been measured, the hot water 2 is switched to the outer path 4d of the switching means 4 until the operation of the hot water discharging means 8 is stopped.

FIG. 3 shows a circuit configuration. That is, the discharging means 3 is composed of a motor 3a, a relay contact 3b, a relay coil 3c, etc., and a current is passed through the relay coil 3c by the output signal of the control means 5, and the motor 3a is driven when the relay contact 3b is closed. The switching means 4 is composed of a solenoid valve 4a for switching the water channel, a power supply section 4e, a relay contact 4f, a relay coil 4g, etc. When the control means 5 conducts electricity, a current flows through the relay coil 4g to close the relay contact 4f. The power supply unit 4e is energized to drive the solenoid valve 4a. The hot water outlet means 8 is composed of a switch 8a and a resistor 8b. When the switch 8a is pressed, a signal is transmitted to the control means 5. The control means 5 has a time measuring means 6 and a driving means 7, and can be realized by a microcomputer, thyristor, relay or the like.

The operation of the above configuration will be described with reference to FIG. First, in step 11, it is judged from the input of the hot water discharge means 8 whether or not the hot water is being discharged. If the hot water is being discharged, the discharge means 3 is driven and the time counting means 6 is counted in step 12. Next, when the time measuring means 6 measures a predetermined time (2 seconds in the present embodiment) in step 13, the switching means 4 is driven in step 14 to discharge to the outer path 4d of the container 1. Further, when the switch 8a of the hot water outlet means 8 is opened in step 11, the process goes to step 15, the timer means 6 is cleared and the driving of the discharge means 3 is stopped, and in step 16, the switching means 4 is moved to the inside path 4c of the container 1. Switch to. If the timekeeping means 6 has not yet counted the predetermined time in step 13, the switching means 4 is switched to the inner path 4c of the container 1 in step 17 until the timekeeping means 6 measures the predetermined time.
Repeat 1 to step 13. Thus, at the beginning of tapping, the hot water 2 in the container 1 and the discharging means 3 is circulated, so that the hot water in the container 1 can be discharged from the beginning.

[0010]

As is apparent from the above embodiments, the electric water heater of the present invention has a container for holding hot water, a discharge means for pumping out the hot water in the container, and a drive means for driving the discharge means. And a hot water output means for outputting a hot water output signal to the control means, and a switching means that is connected to the discharge means and switches a hot water discharge path of hot water pumped by the discharge means to an inner path and an outer path of the container. Provided in the control means is a time measuring means for measuring the time until the inner path of the switching means is switched to the outer path, and the hot water passage of the switching means is switched after the time measuring means measures a predetermined time. With this configuration, even when the heat retention state continues for a long time, hot water at the same temperature as in the container can be discharged, and the practical value is remarkable.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an electric water heater according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a switching unit used in the electric water heater.

FIG. 3 is a circuit diagram of the electric water heater.

FIG. 4 is an operation flowchart of the electric water heater.

[Explanation of symbols]

 1 Container 2 Hot Water 3 Discharging Means 4 Switching Means 4c Inner Path 4d Outer Path 5 Control Means 6 Timing Means 7 Driving Means 8 Hot Water Means

Claims (1)

[Claims] 1. A container for storing hot water, a discharge means for pumping the hot water in the container, a control means having a drive means for driving the discharge means, and a hot water discharge means for outputting a hot water discharge signal to the control means. And a switching means connected to the discharging means for switching a hot water discharge path of hot water pumped out by the discharging means to an inner path and an outer path of the container, and the control means is provided outside from the inner path of the switching means. An electric water heater having a time measuring means for measuring a time until switching to a path, and after the time measuring means measures a predetermined time, switches a hot water outlet path of the switching means.