KR100308027B1 - washing-machine included sensing device for hinder constituent of wash and wash method use of sensing device for hinder constituent of wash - Google Patents

Abstract

The present invention relates to a washing machine, and to measure the amount of washing disturbances contained in the wash water to be supplied before washing to achieve the appropriate amount of detergent and washing process accordingly.

To this end, the present invention provides an outer tank (2) supported inside the main body (1), a washing tank (3) rotatably installed in the outer tank, and a water supply installed to open and close selectively to supply washing water into the outer tank and the washing tank. The valve 8, a water supply duct 9 connected to one end of the water supply valve, a detergent container 10 connected to the other end of the water supply duct and containing detergent, and washing water in the tub and the washing tank are In the case having a drain hose 12 connected to the drain valve 11 so as to drain, the hardness amount for detecting the amount of the hardness component which is a disturbing ingredient contained in the wash water on the flow path of the wash water for washing It relates to a washing machine characterized by having a sensing means.

In addition, the washing method using the hardness detection means of the washing machine comprises the steps of setting the water supply amount of the wash water determined according to the quantity and quality of the laundry in the washing tank and inputting it to the microcomputer; Watering the washing water into an outer tub and a washing tank according to the set amount of washing water; Measuring the water quality of the wash water being supplied and inputting it to a microcomputer; Setting an appropriate amount of detergent according to the quality of the wash water input to the microcomputer and displaying the amount of detergent; Injecting detergent as much as the appropriate detergent amount indicated above; Setting a washing time and a repetition frequency of a rinsing cycle by comparing the amount of detergent and the amount of laundry to be set by the controller; Performing laundry for a predetermined time after the detergent is added; And performing a rinsing stroke a predetermined number of times after performing the washing for a set time.

Description

Washing machine with hardness detection means and washing method using the same {washing-machine included sensing device for hinder constituent of wash and wash method use of sensing device for hinder constituent of wash}

The present invention relates to the field of washing machines, and more particularly, to measure washing interference components contained in the wash water to be supplied, and to compensate for this, to achieve a more efficient washing.

In general, a fully automatic washing machine is a product that removes various contaminants attached to clothes, bedding, etc. by using the emulsification of the detergent and the friction action of the water flow according to the rotation of the washing blade and the impact action applied to the laundry.

In the conventional washing machine, as shown in FIG. 1, the outer tub 2 is supported inside the main body 1, and in the outer tub 2, a plurality of through holes 3a are formed on the outer circumferential surface thereof (hereinafter, 3) is rotatably installed.

In addition, a motor 4 for generating a driving force is attached to one side of the lower surface of the outer tub 2, and a driving force of the motor is received through a belt 5 at a central portion of the inner tub 3 and the washing blade 6. The clutch 7 which rotates selectively is attached.

A water supply valve 8 is installed at one side of the rear upper portion of the main body 1 to supply washing water for washing according to a user's selection, and one end of the water supply duct 9 is connected to the water supply valve. The other end of the water supply duct is connected to the detergent container 10 containing the detergent.

In addition, a drain hose 12 provided with a drain valve 11 is connected to a lower portion of the outer tub 2 to drain the wash water used for washing and rinsing to the outside of the main body 1.

Therefore, the user puts the laundry into the inner tank 3 while the user opens the door 1a installed on the upper part of the main body 1, closes the door 1a, and then washes the laundry on the control panel (not shown). Will be selected.

When the washing mode is selected in this way, the controller (not shown) detects the amount of laundry contained in the inner tank 3, and according to the amount of laundry, water supply amount, detergent input amount, washing time (t), and rinsing frequency ( T) and the like are set respectively.

Accordingly, first, the water supply valve 8 is opened according to the set water supply amount, and the wash water to be used for washing is supplied through the water supply valve 8, and the washing water being supplied is the detergent container 10 while flowing along the water supply duct 9. It enters into the inner tank (3) immediately with the detergent contained in the amount set in the detergent container is filled into the appropriate level according to the amount of laundry in the inner tank.

In addition, when the washing water to be used for washing is filled in the inner tank (3) by a certain height as described above, the water supply valve (8) is closed and further water supply is stopped and at the same time the outer bottom surface of the outer tank (2) in accordance with the control signal of the controller The motor 4 fixed on one side continuously drives in the forward and reverse directions for a set time t.

The driving force of the motor 4 is transmitted to the clutch 7 through the belt 5, and the clutch 7 operates by receiving a washing signal from the controller to reduce the driving force of the motor 4 for a predetermined time. As it is delivered to the inner tank 3 and the washing blade 6 in a state, the inner tank and the washing blade rotate to generate water flow.

As a result, the laundry is washed as described above by the rotational force of the washing blade 6, the frictional force with the inner tank 3, the decomposition force of the detergent.

After the washing operation for the time t set by the above operation, the drain valve 11 installed in the drain hose 12 opens under the control signal of the controller (not shown), so that the washing water used for washing is After draining to the outside of the main body 1 through the drain hose 12 performs a rinsing stroke a predetermined number (T).

At this time, the rinsing stroke performs the same operation as the washing stroke, but the rinsing is performed only because the operation time is shorter than the washing stroke.

When the rinsing cycles described above are completed, the clutch 7 receives the control signal of the controller in the state of draining the wash water used for the rinsing, and sets the driving force of the motor 4 received through the belt 5 in one direction. (3) and the washing blade (6) as it is transmitted as it is without deceleration, the inner tank (3) and washing blade (6) is rotated at the same time at high speed.

Therefore, while the laundry in the inner tank 3 is pushed outward by the centrifugal force, moisture contained in the laundry flows out into the outer tank 2 through the through hole 3a of the inner tank 3, wherein the drain valve 11 is Since it is opened, the water discharged from the laundry is drained to the outside through the drain hose 12, and as a result, the dehydration is completed.

On the other hand, in general, the washing water (tap water) supplied to the machine for washing includes various washing-blocking ingredients (Ca ++, Mg ++, ...: hereinafter referred to as "hardness components").

As the hardness component is directly related to the washing performance, appropriate compensation of the washing process (detergent dosage, washing administration time, number of rinsing strokes, etc.) according to the value is necessary.

That is, when there are a lot of hardness components contained in the tap water to be supplied, it is most preferable to add more detergent than usual or to perform a long time for the whole washing process, while the hardness components included in the tap water to be supplied In the case of less, the same washing effect can be obtained and the amount of detergent and the amount of water can be reduced even if the amount of detergent is reduced or the execution time of the whole washing process is generally shortened.

However, the structure of the conventional general washing machine is not compensated according to the amount of the hardness component as described above, only all the control algorithms, that is, the amount of washing water, detergent input, washing administration time, rinsing only with the amount of laundry put into the first inner tank The number of times of administration is decided.

Accordingly, the input amount of detergent may be large or insufficient, and the time of washing administration is incorrect, and rinsing cannot be performed properly, and thus, it becomes a decisive factor that degrades washing performance.

The present invention has been made to solve the above-mentioned conventional problems, so as to measure the amount of the interference to the laundry contained in the wash water to be watered before performing the washing to achieve the appropriate amount of detergent and washing process accordingly Its purpose is to.

According to an aspect of the present invention for achieving the above object, a water tank installed inside the main body, a washing tank rotatably installed in the outer tank, and the water supply is installed to enable selective opening and closing to supply the wash water into the outer tank and the washing tank A valve, a water supply duct connected to one end of the water supply valve, a detergent container connected to the other end of the water supply duct, containing a detergent, and a drain hose connected to the drain valve to drain the washing water in the outer tub and the washing tub to the outside. In the provided, relates to a washing machine characterized in that it comprises a hardness amount detecting means for detecting the amount of the hardness component which is the interference blocking component contained in the wash water on the flow path of the wash water for washing.

In addition, the washing method using the hardness detection means of the washing machine comprises the steps of setting the water supply amount of the wash water determined according to the quantity and quality of the laundry in the washing tank and inputting it to the microcomputer; Watering the washing water into an outer tub and a washing tank according to the set amount of washing water; Measuring the water quality of the wash water being supplied and inputting it to a microcomputer; Setting an appropriate amount of detergent according to the quality of the wash water input to the microcomputer and displaying the amount of detergent; Injecting detergent as much as the appropriate detergent amount indicated above; Setting a washing time and a repetition frequency of a rinsing cycle by comparing the amount of detergent and the amount of laundry to be set by the controller; Performing laundry for a predetermined time after the detergent is added; And performing a rinsing stroke a predetermined number of times after performing the washing for a set time.

1 is a longitudinal sectional view showing a configuration of a general washing machine

2 is a flowchart illustrating a washing method of a general washing machine.

3 is a longitudinal sectional view showing a configuration of a washing machine according to the present invention;

4 is an enlarged cross-sectional view illustrating an enlarged portion “A” of FIG. 3.

5 is a cross-sectional view taken along line II of FIG. 4.

6 is a flowchart illustrating a washing method of a washing machine according to the present invention.

Explanation of symbols for main parts of the drawings

20. Hardness sensor 30. Closed film

31.Drainer

Hereinafter, the present invention will be described in more detail with reference to FIGS. 3 to 6.

Figure 3 is a longitudinal sectional view showing the configuration of a washing machine according to the present invention, Figure 4 is an enlarged cross-sectional view showing an enlarged portion "A" of Figure 3, Figure 5 is a sectional view taken along the line I-I of Figure 4, Figure 6 As a flowchart illustrating a washing method of a washing machine according to the present invention, some of the configurations of the present invention have been mentioned in the conventional configuration, and thus, overlapping portions will be omitted, and the same reference numerals will be used for the same structure.

The present invention changes the electrophoretic value (current, resistance value) of the wash water in order to measure the amount of the hardness component, which is the interference blocking component contained in the wash water, on the pipeline of the water supply duct 9 in the flow path of the wash water. Install the hardness sensor 20 to detect and measure the amount of hardness components (Ca ++, Mg ++, Na ++, etc.).

In addition, a portion of the conduit is closed on the lower surface of the conduit of the water supply duct 9, which is between the hardness sensor and the detergent container 10 (close to the side where the hardness sensor 20 is located). ) And a drainage hole 31 is formed at one lower side of the closure membrane to communicate with each other the two conduits of the water supply duct 9 partitioned on both sides by the closure membrane.

Referring to the operation of the present invention configured as described above in more detail according to the washing process as follows.

First, when a user inputs laundry into the inner tank 3 and selects a washing mode, the controller (not shown) detects the amount of laundry contained in the inner tank, and the water supply amount is determined according to the amount of the laundry. .

When the water supply amount is determined as described above, washing water (tap water) flows into the water supply duct 9 while the water supply valve 8 is opened.

The washing water supplied in this way is measured by the hardness measurement sensor 20 provided in the water supply duct in the process of flowing along the water supply duct (9), the amount of the hardness component contained in the wash water is measured, and thus the value measured Is again input to the controller (not shown).

If the flow rate of the wash water flowing in the water supply duct 9 is made in the above process, the hardness sensor 20 may not properly measure the amount of the hardness component contained in the wash water, but in the present invention, The closed membrane 30 is formed in the conduit of the water supply duct 9, which is a position close to the hardness sensor, so that the flow of the wash water is stagnated at the point where the hardness sensor is located. The amount of can be measured.

At this time, the closed membrane blocks only about half (h) of the water supply duct (9) pipe diameter (D), so that the continuous washing water flows through the water pipe (C) of the open water supply duct (9). Therefore, in the end, the washing water flowing in the water supply duct passes through the detergent container 10 and water is supplied into the inner tank 3 and the outer tank 2.

On the other hand, the controller (not shown) that receives the amount of the hardness component included in the wash water during the water supply as described above is set by compensating the detergent input amount according to the amount of laundry according to the value, The amount of detergent is displayed to the user.

In addition, the amount of detergent set as described above is compared by the controller with the amount of laundry and the amount of laundry previously input to the controller, and then the proper washing time (t) and the rinsing repetition frequency (T) are set.

Therefore, when the user grasps the amount of detergent in the content displayed as described above and puts the appropriate detergent into the detergent container 10, the injected detergent is mixed with the washing water flowing through the detergent container 10 to be the inner tank 3 and the outer tank. (2) It flows into.

In the water supply duct 9 as described above, the wash water accumulated on the side where the hardness measurement sensor 20 is located in the state in which the flow is stagnated by the closing membrane 30 is formed at the bottom of the closing membrane. Through the drain hole 31 is continuously introduced into the pipeline of the water supply duct (9).

At this time, the drain hole has a narrow diameter d compared to the side into which the wash water flows.

This means that if the diameter d of the drain hole is large, the other side of the water supply duct 9 through the drain hole before the washing water flowing into the hardness sensor 20 is measured by the hardness sensor. This is to allow the flow to flow more slowly, so that sufficient measurement of the hardness content can be made.

In addition, the water supply duct as described above is not formed in the lower end of the closed membrane 30 as described above, the water supply duct of the water supply duct (9) in the pipe of the hardness-quantity measuring sensor 20 is located on the side By connecting a separate drain pipe (not shown) having a narrower conduit than that of the conduit, the washing water collected by the closing membrane can continue to flow onto the washing water flow path after the closing membrane 30. Is the same, so it does not matter in any form, but only if the wash water accumulated on the side where the hardness sensor is located can be completely drained to the outside.

As a result, the controller, which determines that the water supply is completed as described above, performs the washing stroke for the preset washing time t, and then performs the rinsing stroke for the set number of times.

As described above, the present invention can be accurately compensated according to the amount of the hardness component contained in the wash water, the optimal amount of detergent input, washing administration time and the number of rinsing stroke can be determined, as described above. As the optimal washing algorithm can be specified, washing performance is improved.

In addition, unnecessary waste of detergent can be prevented, and the effect of reducing the amount of water and energy can also be obtained.

Claims (4)

An outer tub supported inside the main body, a washing tub rotatably installed in the outer tub, a water supply valve installed to be selectively opened and closed to selectively supply washing water into the outer tub and the washing tub, and a water supply having one end connected to the water supply valve A washing machine having a duct, a detergent container connected to the other end of the water supply duct and containing a detergent, and a drain hose connected to a drain valve to drain the washing water in the outer tank and the washing tank to the outside, Hardness amount sensing means for detecting the change in the electric movement value of the wash water on the pipeline of the water supply duct to measure the amount of the hardness component as a disturbing component, and the water supply duct located between the hardness amount detection means and the detergent container Washing machine, characterized in that it is provided with a closing film to block a part of the pipe in the lower surface of the pipe. The method of claim 1, The washing machine characterized in that the washing water is collected by the closing membrane by connecting a separate drain pipe to the side where the hardness detection means of the water supply duct is located so that the washing water continues to flow on the washing water flow path after the closing membrane. . The method of claim 1, Washing machine, characterized in that to form a drain hole in the lower one side of the closing membrane communicating the two pipes of the water supply duct. Setting a water supply amount of the washing water determined according to the quantity and quality of the laundry in the washing tank and inputting it to the microcomputer; Watering the washing water into an outer tub and a washing tank according to the set amount of washing water; Measuring the water quality of the wash water being supplied and inputting it to a microcomputer; Setting an appropriate amount of detergent according to the quality of the wash water input to the microcomputer and displaying the amount of detergent; Injecting detergent as much as the appropriate detergent amount indicated above; Setting a washing time and a repetition frequency of a rinsing cycle by comparing the amount of detergent and the amount of laundry to be set by the controller; Performing laundry for a predetermined time after the detergent is added; And performing a rinsing stroke a predetermined number of times after performing the washing for a set time.