JPH07265850A - Water purifier with waste water warning function - Google Patents

Abstract

(57) [Summary] [Purpose] A water purifier used for drinking water, etc., is provided with a waste water warning function for preventing wasteful waste water and drinking contaminated water. [Structure] In the water purifier, a detection unit that distinguishes water flow and water stoppage is provided at an arbitrary point of the water passage, and a counter that measures the water stoppage time when water is stopped and a counter that measures the water passage time when water is again supplied And an electronic circuit including a water flow display unit that keeps the light off state when water is re-passed after a preset time has elapsed after stopping water and turns on after the preset water flow time Let

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifier having a function of displaying a warning of the necessity of waste water due to reverse pollution depending on the use situation.

[0002]

2. Description of the Related Art Water purifiers that are generally used filter raw water such as tap water with activated carbon and hollow fiber membranes stored in the water purifier and take it out as purified water. In this case, if you do not use the water purifier for a long time, the purified water remaining inside the water purifier may be contaminated by bacteria that have entered from the outside because chlorine has been removed. It becomes unsuitable. Therefore, the users of water purifiers usually discard water for a certain period of time to avoid drinking water contaminated with bacteria when reused after stopping water for a long time, especially at the first use every morning. Is.

[0003]

In such a conventional coping method in which water is discarded for a certain period of time when it is reused, when a plurality of people are using the same water purifier, what time is the previous user? Since it is unknown whether or not it was used, it was not known whether or not it was necessary to discard water when using it, and multiple users repeatedly drained water or, on the contrary, stopped water for a long time. Nevertheless, I could drink contaminated water instead of discarding it because I thought I was using it frequently.

The present invention has a waste water warning display function for displaying the necessity of waste water and the necessary amount of waste water for preventing such wasteful waste water and drinking of polluted water. The purpose is to provide a water purifier.

[0005]

Means for Solving the Problems The gist of the present invention is to provide a detection unit for discriminating between water passage and water stoppage at an arbitrary position of a water passage, and the detector is connected to the detection unit to stop when water is stopped. A counter that measures the water time and a counter that measures the water flow time at the time of re-water flow, and if the preset time has elapsed after stopping the water, the light-off state will be maintained at the time of re-water flow, and after the preset water flow time. It is a water purifier with a drain water warning function, which is equipped with an electronic circuit including a water flow display unit that is lit and displayed.

[0006]

[Function] The water purifier has a preset water shutoff time that may cause contamination. When the water shutoff time reaches the preset time, the water flow indicator is kept off when water is started. , It is shown that the water shut-off time is long and the water purifier may be contaminated. At this time, since the amount of waste water from which contaminated water is removed by passing water is set in advance in advance, when the water passing time reaches this set time, the water passing indicator lights up and the waste water is completed. Let me know.

[0007]

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a vertical sectional view showing an example of the water purifier of the present invention, and FIG. 2 is a flow chart schematically showing an example of the operation of the water purifier. In FIG. 1, 1 is a water purifier body, 2 is a cartridge type filter, 3 is a raw water inlet, 4 is activated carbon, 5 is a hollow fiber membrane, 6 is a purified water side water passage, 7 is a purified water outlet, and 8 is a purifier. An electronic circuit incorporated in the top portion, 9 is a detection portion for determining the presence or absence of water passage, and 10 is a display portion provided on the top surface of the water purifier.

In FIG. 1, raw water such as tap water that has flowed in from a raw water inlet 3 provided at the bottom of the water purifier body 1 enters a cartridge type filter 2 and is stored inside the cartridge type filter 2 to be filtered. Is filtered by the activated carbon 4 and the hollow fiber membrane 5 forming the water, and the purified water side water passage 6
Through the purified water outlet 7.

The water purifier of the present embodiment is provided with a detection unit 9 for determining whether water is passed or not in the water purification side water passage 6, and the detection unit 9 is provided at the top of the water purifier body 1 when water is stopped. An electronic circuit 8 is provided which incorporates a counter for receiving the signal from the water meter to measure the water stoppage time and a counter for receiving the signal from the detection unit 9 to re-water the water flow in time. There is.

The water flow indicator 10 provided on the top surface of the water purifier body 1 lights up or goes out in response to a signal from the electronic circuit 8 to display the necessity of the discarded water and the required amount of the discarded water.

When the water purifier is judged to be in the water stopped state by the detection of the detector 9 when the water is stopped, the electronic circuit 8 sends a light-off signal to the water display unit 10 and the counter measures the water stop time. To start. The electronic circuit 8 has a preset stop time which is a standard when waste water is required.
When the water stop time reaches this set time, the water flow display unit 10 is kept turned off during the subsequent water flow to inform the user that the water to be discarded is required.

Although the setting of the stoppage time that requires waste water varies depending on the environmental conditions of the place where the water purifier is used, the season, etc., in the experiment of the present inventor, if it is a kitchen of a normal house, It has been found that there is no need for waste water when the water stop time is about several hours, and about 5 hours is sufficient for practical use as the water stop time that requires waste water.

When water is re-supplied after the set stop time exceeds the set time, the detector 9 detects the passage of water, and a signal sent to the electronic circuit 8 activates a counter for measuring the passage time. . When the water flow time reaches a preset time, the water flow display unit 10 lights up by the signal sent from the electronic circuit 8,
Notify that water is available and stop counting water flow time.

When water flow is restarted, the counter for measuring the water stop time automatically stops. Also, when water is stopped again after passing water, the counter will operate and the measurement of the water stop time will start. The amount of waste water should be set as long as water in the purified water passage between the purified water discharge port and the purified water outlet or bacteria adhering to the periphery of the purified water pipe can flow out, and the time is 5 to 5 Six seconds is enough.

When the water stoppage time is shorter than the preset time, the water flow indicator 10 lights up immediately when the water is passed to inform the user that there is no need for waste water and the purified water can be used as it is.

The detecting unit 9 may be a photo sensor composed of an LED and a phototransistor, a pair of electrodes, a pressure sensor, or the like. However, other detecting means can be used as long as it can determine whether water is passing or water is stopped. You can replace it.
Further, the position where the detection unit 9 is provided can be an arbitrary position of the purified water side water passage or the raw water side water passage. As the method of displaying the waste water warning by the water flow display unit 10, any method such as an LED or a liquid crystal can be used as long as it can be visually recognized.

In the above description, the case in which the drain water time is constant is described, but it is also possible to change the drain water time according to the water stop time.

[0019]

EFFECT OF THE INVENTION The water purifier of the present invention can visually judge the necessity of waste water when the water is stopped for a long time, can prevent drinking of the purified water which may cause reverse pollution, and contaminated the purified water. Since the amount of water required to drain the water is also displayed, it is possible to prevent wasteful waste water.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of a water purifier of the present invention.

FIG. 2 is a flow chart schematically showing an operation example of the water purifier of the present invention.

[Explanation of symbols]

 1 Water Purifier Main Body 2 Cartridge Filter 3 Raw Water Inlet 4 Activated Carbon 5 Hollow Fiber Membrane 6 Water Purification Side Water Passage 7 Water Purification Outlet 8 Electronic Circuit 9 Detector 10 Water Indication

Claims (1)

[Claims] 1. A detection unit for discriminating between water flow and water stoppage is provided at an arbitrary position of a water passage, and a counter and rewatering unit connected to the detection unit for measuring the water stop time at the time of water stoppage. A counter that sometimes measures the water flow time and a water flow indicator that keeps the light off when re-watering after a preset time has elapsed after stopping water and turns on after the preset water flow time A water purifier with a waste water warning function, which has an electronic circuit including the parts