JPH05253066A - Electric water boiler - Google Patents

Abstract

PURPOSE:To achieve a circulation and purification of water according to a quality of water by judging the quality of water in an electric water boiler. CONSTITUTION:This apparatus is provided with a water quantity judging means 9, a filtering means 17, a circulation means 18, a circulation control means 19 and a water purity judging means 22. The water quality of a liquid varied with districts and seasons is judge to perform a circulation and purification of water according to the quality of water. Thus, a problem of requiring much time is prevented without consuming power uselessly, thereby accomplishing the optimum water purification.

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 which heats and keeps hot water in a general household.

[0002]

2. Description of the Related Art A conventional electric water heater will be described. FIG. 5 is an overall configuration diagram of a conventional electric water heater,
In FIG. 5, a container 2 having an upper surface opening is provided in the main body 1, a lid 3 is arranged at the opening of the container 2, and a heating means 4 as a heat source for heating a liquid and an inside of the container 2 are provided at an outer bottom portion of the container 2. A temperature sensor 5 that indirectly measures the temperature of the liquid is installed. When the boiling detection means 6 detects the boiling of the liquid from the output of the temperature sensor 5, it outputs a signal to the energization control means 7 which controls the energization of the heating means 4. After receiving the signal from the boiling detection means 6, the energization control means 7 continues heating for a certain period of time to remove volatile impurities such as chlorine.

[0003]

However, in the above-mentioned conventional structure, in order to remove impurities such as chlorine, heating is continued for a certain period of time after boiling, resulting in a large power consumption,
It had a problem that it took time. In addition, since the process of removing the impurities is not displayed, the user does not know how much the impurities are removed.

The present invention solves the above-mentioned problems of the prior art by determining the water quality having regional differences and seasonal fluctuations, and maintaining the boiling for an unnecessarily long period of time, efficiently and economically, such as calcination. A first object is to provide an electric water heater that removes impurities.

A second object is to provide an electric water heater which is easy to use by judging the water quality having regional differences and seasonal variations and displaying it.

[0006]

In order to achieve the first object, the electric water heater of the present invention has a circulation means for circulating the liquid in the container and an impurity in the liquid circulated by the circulation means. Removing means, a water quality determining means for determining the water quality of the liquid in the container, a water quality determining means for determining the degree of removal of liquid impurities from the value obtained by the water quality determining means, and the water purity determining means. And a circulation control means for outputting a drive signal to the circulation means until the value obtained by the above becomes a predetermined value.

Further, in order to achieve the second object, the electric water heater of the present invention has a water quality judging means for judging the water quality of the liquid in the container and a removal degree of the liquid impurities from the value of the water quality judging means. It is configured to have a water purification degree judgment means for making a judgment and a display control means for outputting a signal to a water quality display means for displaying water quality by sound or light according to the value of the water purification degree judgment means.

[0008]

According to the first aspect of the present invention, the water quality of the liquid in the container is judged and the circulation means is operated in accordance with the degree of improvement of the water quality, so that impurities such as chlorine are efficiently and economically removed. It can be removed.

Further, according to the second configuration, the water quality of the liquid in the container is judged and the degree of improvement of the water quality is displayed, so that the user can use it with confidence while checking the water quality, and it is easy to use. can do.

[0010]

【Example】

(Embodiment 1) Hereinafter, an embodiment of the first invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram of an embodiment of the first aspect of the present invention. In FIG. 1, the same components as those in the conventional example are designated by the same reference numerals. A container 2 having an upper surface opening is provided in the main body 1, a lid 3 is arranged at the opening of the container 2, and a heating means 4 for heating the liquid in the container 2 is installed at the outer bottom of the container 2. Further, an electrode 8 for measuring the conductivity of the liquid is installed on the inner bottom portion and is connected to the water quality judging means 9.

Further, a water channel is formed from the discharge port 10 below the container 2 to the water channel switching means 13 via the pump 11 and the water conduit 12, and this water channel is connected to the external discharge port by the state of the valve 14 in the water channel switching means 13. 15 or the internal discharge port 16 is switched. The liquid ejected from the internal ejection port 16 is returned to the inside of the container 2 through the removing means 17 containing activated carbon or the like. The circulation means 18 is a motor for driving the pump 11, and is driven by the circulation control means 19. When the operation knob 20 installed on the upper part of the main body 1 is operated, the contact of the switch 21 linked with the operation knob 20 is switched, and the circulation control means 19 drives the circulation means 18 by the signal. Further, at this time, the valve 14 is switched in conjunction with the operation knob 20 to switch the water passage to the external discharge port 15, and the liquid in the container 2 is discharged to the outside.

The water quality judging means 9 measures the conductivity of the liquid in the container 2 by means of the electrode 8 and outputs it to the water purification degree judging means 22. The water purification degree determination means 22 outputs a signal to the circulation control means 19 at the time when the downward gradient of the conductivity reaches a predetermined value,
The circulation control means 19 outputs a control signal to the circulation means 18 according to the output signal from the water purification degree determination means 22.

The operation of the electric water heater configured as described above will be described with reference to FIG. 2, which is a relationship diagram between the water purification time and the conductivity in one embodiment of the present invention. First lid 3
When the liquid is put in the container 2 and connected to a commercial power source, the heating means 4 is energized to heat the liquid in the container 2. At the same time, the circulation means 18 operates to clean the liquid by the removing means 17, and the water quality judging means 9 judges the conductivity of the liquid.

The conductivity of the liquid depends on the amount of dissolved ions in the liquid, and in particular, the larger the amount of calc (Cl) contained in the liquid, the higher the conductivity. The water purification degree determination means 22 sequentially compares the decreasing gradients (Δλ / Δt) of the conductivity due to the water purification in FIG. 2, and when the amount of scaly contained in the liquid decreases,
Since this falling gradient becomes smaller, it is judged that impurities such as chlorine are removed at a time point (t2) when the falling gradient becomes equal to or less than a predetermined falling gradient, and a signal is output to the circulation control means 19.

The circulation control means 19 confirms the signal from the water purification degree determination means 22, and if the signal is a signal in which scaly or the like is not sufficiently removed, it outputs an ON signal to the circulation means 18 to drive the pump 11. If the operation knob 20 is not operated here, the position of the valve 14 in the water channel switching means 13 is on the side of the internal outlet 16, so that by driving the pump 11, the inside of the container 2 discharged from the outlet 10 is driven. Of the liquid passes through the water conduit 12 and is removed from the internal discharge port 16 by the removing means 1
Impurities such as chlorine are removed by 7 and returned to the container 2. If the signal from the water purification degree judging means 22 becomes a signal from which scaly and the like have been sufficiently removed, the circulation control means 19
An off signal is output to the circulation means 18.

When the operation knob 20 is operated, the position of the valve 14 in the water channel switching means 13 is switched to the external discharge port 15 and a signal is output to the circulation control means 19, and the circulation control means 19 operates the circulation means 18. The liquid in the container 2 is driven and discharged from the external discharge port 15 to the outside.

As described above, according to this embodiment, the water quality judgment means 9, the removal means 17, the circulation means 18, and the circulation control means 1 are provided.
9 and the water purification degree determination means 22 determine the water quality of liquids having regional differences and seasonal fluctuations, and perform optimal water purification according to the concentration of impurities such as chlorinated water, which may waste power. Therefore, it is possible to prevent the problem that it takes extra time to purify water.

(Embodiment 2) Next, an embodiment of the second invention will be described with reference to FIG. 3, which is an overall configuration diagram of an embodiment of the second invention. In FIG. 3, the same components as those in the first embodiment are designated by the same numbers. A container 2 having an upper surface opening is provided in the main body 1, a lid 3 is arranged at the opening of the container 2, and a heating means 4 for heating the liquid in the container 2 is installed at the outer bottom of the container 2. Further, an electrode 8 for measuring the conductivity of the liquid is installed on the inner bottom portion and is connected to the water quality judging means 9. Further, a water quality display means 23 for displaying the water quality is arranged above the main body 1.

The water quality judging means 9 measures the electric conductivity of the liquid in the container 2 with the electrode 8 and outputs it to the water purification degree judging means 22. The water purification degree determination means 22 outputs a signal to the display control means 24 according to the value of the descending gradient of the conductivity, and the display control means 2
4 outputs a control signal to the water quality display means 23 in response to the output signal from the water purification degree judgment means 22.

The operation of the electric water heater configured as described above will be described with reference to FIG. 4, which is a relationship diagram between the water purification time and the conductivity in one embodiment of the present invention. First lid 3
When the liquid is put in the container 2 and connected to a commercial power source, the heating means 4 is energized to heat the liquid in the container 2 and
The water quality determination means 9 determines the conductivity of the liquid.

The conductivity of the liquid depends on the amount of dissolved ions in the liquid, and in particular, the larger the amount of calc (Cl) contained in the liquid, the higher the conductivity. Since the calcination decreases as the liquid is heated, the water purification degree determination unit 22 sequentially compares the decreasing gradient (Δλ / Δt) of the conductivity due to the heating in FIG. 4, and when the amount of calcification contained in the liquid decreases, Since this descending slope becomes smaller, a signal is output to the display control means 24 according to this descending slope.

The display control means 24 outputs a signal to the water quality display means 23 composed of an LED (light emitting diode) in response to the output signal from the water purification degree judgment means 22 to display the water quality of the liquid in the container 2. .

As described above, according to the present embodiment, by providing the water quality judging means 9, the water purification degree judging means 22, the water quality displaying means 23 and the display controlling means 24, the concentration of scaly or the like contained in the liquid can be determined. Since it can be displayed, the user can reduce the amount of bleaching etc. by heating again when there are many components such as bleaching, which is convenient. In addition, in the second embodiment, the water quality indicator 23 is L
Although the ED is used, needless to say, the same effect can be obtained by using other display means. Also, the same effect can be obtained by using a sounding body such as a buzzer and sounding the bleaching or the like several times when the concentration becomes lower than a predetermined value to notify the user.

[0024]

As described above, according to the present invention, the circulating means for circulating the liquid in the container, the removing means for removing impurities in the liquid circulated by the circulating means, and the water quality of the liquid in the container are determined. Water quality judgment means, water purification degree judgment means for judging the degree of water purification of liquid from the value obtained by the water quality judgment means, and turning on the circulation means until the value obtained by the water purification degree judgment means reaches a predetermined value. By providing the circulation control means for outputting a signal, water can be purified according to the quality of the water, so that it is possible to realize an electric water heater that can perform optimal water purification without wasting time and power.

According to the second aspect of the invention, a water quality judging means for judging the water quality of the liquid in the container, and a water purification degree judging means for judging the water purification degree of the liquid from the value obtained by the water quality judging means, By providing a water quality display means for displaying water quality with sound or light and a display control means for outputting a signal to the water quality display means according to the value of the water purification degree judgment means,
The user can know the water quality of the liquid and can reduce the amount of bleaching etc. by heating again when there are many components such as bleaching, so that an electric water heater with good usability can be realized.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an electric water heater showing an embodiment of the first invention.

FIG. 2 is a diagram showing the relationship between water purification time and conductivity showing an embodiment of the first invention.

FIG. 3 is an overall configuration diagram of an electric water heater showing an embodiment of the second invention.

FIG. 4 is a relational diagram of water purification time and conductivity showing an embodiment of the second invention.

FIG. 5: Overall configuration diagram of a conventional electric water heater

[Explanation of symbols]

 2 container 4 heating means 9 water quality judgment means 17 removal means 18 circulation means 19 circulation control means 22 water purification degree judgment means 23 water quality display means 24 display control means

Claims (2)

[Claims] 1. A container for containing a liquid, a heating means for heating the liquid in the container, a circulation means for circulating the liquid in the container, and an impurity in the liquid circulated by the circulation means. A removing means, a water quality determining means for determining the water quality of the liquid in the container, a water quality determining means for determining the degree of removal of liquid impurities from the value obtained by the water quality determining means, and a water quality determining means An electric water heater comprising: a circulation control means for outputting a drive signal to the circulation means until the obtained value reaches a predetermined value. 2. A container for containing a liquid, a heating means for heating the liquid in the container, a water quality judging means for judging the water quality of the liquid in the container, and a liquid based on a value obtained by the water quality judging means. And a display control means for outputting a control signal to the water quality display means for displaying sound or light according to the value obtained by the water purification degree judgment means. Electric water heater.