JPH0694505A - Electronic circuit of water purifier - Google Patents

Abstract

PURPOSE:To obtain an electronic circuit capable of lengthening the life of a battery of a power source section of the electronic circuit in a water purifier having a function of measuring, displaying and storing of the integrated used flow rate and integrated used time. CONSTITUTION:A water detection means consisting of a water detector 4 and a comparator 6 outputs a device use-starting signal to an switching means 8 at starting of the passage of water and outputs a device use- ending signal to the switching means 6 at ending of the passage of water. The switching means 8 switches the water purifier to a condition of supplying voltage to all circuits by the water purifier use starting signal and switches it to a condition of supplying voltage to the water detection means and a counter section or a counter value-storing means 12 which stores an integrated used flow rate or an integrated used time by the water purifier use-ending signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic circuit having a function of measuring, displaying, and storing an accumulated used flow rate or accumulated used time in a water purifier.

[0002]

2. Description of the Related Art A water purifier for measuring, displaying, and storing an accumulated use flow rate or an accumulated use time for the purpose of informing a user of a hollow fiber inside a water purifier or a time when activated carbon is to be replaced, is directly connected to a faucet. , And the electronic circuits of such water purifiers are driven by batteries or batteries. In the above electronic circuit of the water purifier, all the electronic circuits are energized when the water passage lever of the water purifier is opened, and the accumulated used flow rate or accumulated use time is stored when the water passage lever is closed. In general, only the counter unit or the count value storage unit is energized.

[0003]

The electronic circuit of the conventional water purifier described above is useful when water is passed or not passed by operating the water passing lever of the water purifier. However, when the water faucet at the inlet of the water purifier is operated with or without water, the water lever of the water purifier must always be opened to the water passage side. In such a case, all electronic circuits of the water purifier are always energized, and it is difficult to reduce the total power consumption until the activated carbon in the water purifier reaches the end of its life.

Therefore, according to the present invention, it is possible to prolong the life of the battery of the electronic circuit power supply part of the water purifier when water is passed or not by the operation of the tap regardless of the water passage lever of the water purifier. It is intended to provide an electronic circuit of a water purifier.

[0005]

In order to achieve the above object, according to the present invention, a circuit for measuring and displaying an integrated used flow rate or an integrated used time and a counter section or a count for storing the integrated used flow rate or the integrated used time. In the electronic circuit of the water purifier, which has a signal processing / display unit consisting of a value storage unit, and a water detection means which issues a water purifier use start signal at the start of water flow and a water purifier use end signal at the end of water flow, the water purifier When a use start signal occurs, energize the electronic circuit, energize the electronic circuit when the water purifier use end signal occurs, when the water purifier use end signal occurs,
There is provided an electronic circuit of a water purifier having a switching unit for energizing the counter unit or the count value storage unit and the water detecting unit.

[0006]

In the electronic circuit of the water purifier according to the present invention, the water detection means and the counter portion or count value for storing the accumulated used flow rate or accumulated used time in the signal processing / display portion are always energized. Therefore, the usage status of the water purifier is always grasped by the water detecting means which is energized.

In response to the water purifier use start signal output from the water detection means at the start of water flow, the switching means switches to energization of all electronic circuits. At the end of the water flow, the switching means switches the electricity supply to at least the water detection means and the counter section or the count value storage section that stores the cumulative usage flow rate or the cumulative usage time in response to the water purifier usage termination signal output from the water detection means. In addition, in the electronic circuit of the water purifier provided with the energization extension means, the energization extension means measures and displays the accumulated use flow rate or accumulated use time in the signal processing / display unit for a certain period of time after the water purifier use end signal is generated. Energize the circuit. That is, even after the use of the water purifier, the accumulated use flow rate or accumulated use time of the water purifier is displayed for a certain period of time.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a first embodiment of an electronic circuit of a water purifier of the present invention. The main power supply unit 2 always supplies electric power to the water detector 4 and the comparator 6 forming the water detecting means, and the count value storage unit 12 in the signal processing / display unit, which stores the accumulated use flow rate and the accumulated use time. . The water detector 4 measures conductivity, and outputs a signal for detecting the presence or absence of water from the electrode for the water detector 4 arranged at the outlet of the water purifier to the comparator 6. The comparator 6 compares this signal value with a threshold value serving as a reference for determining the presence or absence of water, and issues a water purifier use start signal or a water purifier use end signal to the switching means 8. The switching means 8 is a circuit (hereinafter referred to as a measurement / display circuit) 10 for measuring and displaying the total used flow rate and the total used time in the signal processing display section from the main power source section 2 in response to the water purifier use start signal or the water purifier use end signal. Control the power supply to. Measurement / display circuit 10 and count value storage unit 12
Constitutes a signal processing / display unit.

When the water purifier is changed from the non-water-passing state to the water-passing state, the signal value output from the water detector 4 becomes equal to or higher than the threshold value of the comparator 6, and the comparator 6 is the water purifier. Issue a start signal. The water purifier use start signal is output to the switching means 8 and power is supplied from the main power supply unit 2 to the measurement / display circuit 10.

The switching means 8 for switching the energization by the water purifier use start signal will be described with reference to FIG. The water detector 4, the comparator 6, and the count value storage unit 12 are always energized by the main power supply unit 2. When the water purifier use start signal is output from the comparator 6 to the switching unit 8 including the transistor 22 and the electromagnetic relay 24, a voltage is applied between the base and the emitter of the transistor 22, and the transistor 22 is turned on. At this time, the electromagnetic relay 24 is driven, and the measurement / display circuit 10 is driven from the main power source unit 2.
Is powered.

On the other hand, when the water purifier is switched from the water-passing state to the non-water-passing state, the signal value output from the water detector 4 becomes smaller than the threshold value in the comparator 6, and the comparator 6 is the water purifier. Issue a usage end signal. The transistor 22 and the electromagnetic relay 24 are turned off by the water purifier use end signal, and power is not supplied from the main power supply unit 2 to the measurement / display circuit 10. That is, when the water flow is completed, the accumulated flow rate and accumulated use time are not displayed.

Next, a second embodiment of the electronic circuit of the water purifier of the present invention will be described. FIG. 3 is a block diagram showing the configuration of the second embodiment of the electronic circuit of the water purifier of the present invention.
The difference from the first embodiment is that the power supply backup unit 14 for the signal processing display unit is provided, and the state at the end of water flow is different from that of the first embodiment. This process is shown in Figure 4.
Will be explained.

At the end of water flow, the transistor 22 and the electromagnetic relay 24 are turned off by the water purifier use end signal, and power is not supplied from the main power supply unit 2 to the measurement / display circuit 10. However, when the power supply from the main power supply unit 2 is stopped, the power supply backup unit including the resistor 30C and the electrolytic capacitor 34 starts energizing the measurement / display circuit 10. The signal processing / display unit including the measurement / display circuit 10 and the count value storage unit 12 stops the power supply from the power supply backup unit 14 to the measurement / display circuit 10 after counting a certain number of clocks. FIG. 5 shows the measurement / display circuit 10 and the count value storage unit 12 in the second embodiment.
4 is a flowchart of a signal processing / display unit including

As described above, the signal processing / display unit including the measurement / display unit circuit 10 and the count value storage unit 12 and the power source backup unit 14 constitute an energization extension means for the measurement / display circuit, and after the water purifier is used. For a certain period of time, the cumulative usage flow rate and cumulative usage time of the water purifier will be displayed.

[0015]

As described above, according to the electronic circuit of the water purifier of the first embodiment of the present invention, all the electronic components of the water purifier having the functions of measuring, displaying and storing the accumulated use flow rate or accumulated use time. The circuit is energized only for the actual use time of the water purifier, and for other water purifier installation times, the water detection means and the counter unit or count value storage unit that stores the accumulated use flow rate or accumulated use time Only need to energize. That is, the life of the battery of the electronic circuit power supply unit can be extended and the number of times the water purifier user replaces the battery can be reduced.

[0016] In general, the user of the water purifier usually pays attention to the area around the container into which the water purifier is poured while using the water purifier, and does not pay attention to other things. Attention is paid to the area around the container after the water purifier has been used. The display of the cumulative flow rate or cumulative usage time of the water purifier is no exception. However, in the electronic circuit of the water purifier according to the first embodiment of the present invention, at the same time as the use of the water purifier is finished, the signal processing / display unit that energizes the signal processing / display unit that measures, displays, and stores the cumulative usage flow rate or the cumulative usage time of the water purifier. Is cut off, and the integrated flow rate or integrated usage time is no longer displayed. In this case, for the above reason, it is difficult for the water purifier user to know the cumulative usage flow rate or cumulative usage time, and there is a possibility that the hollow fiber inside the water purifier or the activated carbon may be missed.

Therefore, like the electronic circuit of the water purifier according to the second embodiment, the electronic circuit of the water purifier according to the first embodiment has a certain period of time after the water purifier has been used for a certain period of time after the water purifier has been used. By providing a current extension means in the electronic circuit in the signal processing / display section for measuring and displaying, the water purifier used flow rate or accumulated use time is displayed for a certain period even after the water purifier has been used.
It is possible to give attention to the water purifier user. That is, it is possible for the water purifier user to pay attention to the flow rate of the water purifier or the cumulative use time and replace the hollow fiber or activated carbon inside the water purifier at an appropriate time.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a first embodiment of an electronic circuit of a water purifier of the present invention.

FIG. 2 is a circuit diagram of a switching means in the first embodiment of the electronic circuit of the water purifier of the present invention.

FIG. 3 is a block diagram showing the configuration of a second embodiment of the electronic circuit of the water purifier of the present invention.

FIG. 4 is a circuit diagram of a switching means and a power backup unit in a second embodiment of the electronic circuit of the water purifier of the present invention.

FIG. 5 is a flow chart of a signal processing / display unit in a second embodiment of the electronic circuit of the water purifier of the present invention.

[Explanation of symbols]

 2 main power supply section 4 water detector 6 comparator 8 switching means 10 measurement / display circuit 12 count value storage section 14 power supply backup section 16 power transmission path 18 signal transmission path 22 transistor 24 electromagnetic relay 30a, 30b, 30c resistor 32 capacitor 34 Electrolytic capacitor

Claims (2)

[Claims] 1. A signal processing / display unit comprising a circuit for measuring and displaying an accumulated used flow rate or an accumulated used time, a counter section or a count value storage section for storing the accumulated used flow rate or the accumulated use time, and water purification at the start of water passage. In the electronic circuit of the water purifier having a water detecting means for issuing a water purifier use start signal and emitting a water purifier use end signal at the end of water flow, energizing the electronic circuit when the water purifier use start signal is generated, the water purifier An electronic circuit of a water purifier, comprising switching means for energizing the counter portion or the count value storage portion and the water detecting means when a use end signal is generated. 2. An energization extension means for energizing a circuit for measuring and displaying the integrated use flow rate or the integrated use time for a fixed time after the water purifier use end signal is generated.
Electronic circuit of the described water purifier.