KR20050066485A - Apparatus for preventing from water splash in washing machine - Google Patents

Abstract

Water scattering prevention structure of the washing machine according to the invention the tub is accommodated wash water; A rotating tank for forming forced water flow by rotation; A tub cover formed at an upper end of the tub to guide water flow to the tub side; A light emitting part formed on an inner circumferential surface of the tub cover to emit light crossing the tub cover; And a light receiving unit to selectively receive light emitted from the light emitting unit.

According to the present invention, the washing cloth can be prevented from being raised above the height of the tub cover, and the washing water can be effectively suppressed from scattering during water supply and permeation washing. Furthermore, it is possible to improve a problem regarding the safety of the washing machine that may be generated due to the outflow of the washing water.

Description

Apparatus for preventing from water splash in washing machine}

The present invention relates to a washing machine, and more particularly, to a washing machine scattering prevention structure of the washing machine that can prevent the washing water is scattered by the washing cloth during permeation washing and / or water supply to increase the reliability of the washing machine operation.

In general, a washing machine is a product that removes various contaminants attached to clothes, bedding, etc. by using the action of the emulsification of the detergent or the friction action of the water flow due to the rotation of the wash water or the impact of the pulsator applied to the laundry cloth. And, the washing method is performed by the washing machine, the process of detecting the amount and type of laundry cloth by the sensor to automatically set the washing method, the process of watering the washing water to the appropriate level according to the amount and type of laundry cloth, Washing, rinsing, and dehydration processes are performed by control.

The present invention is of major interest in a washing machine of the permeable washing method that performs permeation washing by spraying the pumped water stream into the rotating tank while rotating the rotating tank and / or pulsator at a high speed during washing.

The washing machine is a permeation washing machine to which the conventional permeation washing method is applied, the pulsator and the rotating tub are integrally formed, and the rotating tub and the pulsator are rotated at a high speed by a predetermined driving means. In addition, the wash water in the rotary tub penetrates the laundry cloth by the centrifugal force generated by the high speed rotation of the rotary tub, and the contaminants attached to the laundry cloth are separated from the laundry cloth. Subsequently, the wash water that has passed through the wash cloth moves to the tub through the through hole formed in the rotating tub, and the wash water introduced into the tub rises along the wall surface of the tub by centrifugal force. In addition, the washing water in which the traveling direction is bent in the upper portion of the tub is dropped into the rotating tub and re-introduced, and the washing is performed by tapping the washing cloth during the falling of the washing water.

In the case of the permeable washing machine, the washing water is penetrated by the centrifugal force, and the permeable washing water falls from the top and taps the washing cloth, so the washing effect is better than other conventional washing methods. .

However, in the case of the permeable washing machine, the washing water to be re-introduced into the rotary bath during the permeation washing hits the floating laundry cloth and cannot be re-introduced into the rotary bath. This situation occurs mainly when the laundry cloth is made to protrude upward from the tub cover.

In detail, the case where the laundry cloth protrudes above the tub cover occurs when a large amount of laundry cloth is put into the rotary tub. That is, when a large-capacity duvet and a pillow and the like are put into the rotary tub, the corners of the blanket and the pillow may protrude to the upper side of the tub cover. In particular, in the case of the pillow for the bed has a strong characteristic that the pillow is floating in the water by the air contained in the pillow, washing water injected into the rotating tub by riding the tub during permeation washing is scattered to the outside by hitting the pillow. This phenomenon can lead to water splash.

When the leaked wash water falls between the tub and the case and falls on the bottom surface of the inside of the washing machine, the wash water contacts the electrical equipment provided at the lower portion of the tub, and may cause a problem such as a short in the electrical equipment, resulting in a fire or a safety accident.

In addition, in a country where a carpet culture is developed in which a washing machine is installed on a floor on which a carpet is placed, the carpet may be discarded by the leaked water. Due to the leakage of the wash water, a shortage of wash water occurs, and of course, the washing is not performed smoothly.

On the other hand, even when the laundry is not permeable, when the laundry cloth is placed below the water supply port, water supplied through the water supply port may collide with the laundry cloth and flow out between the tub and the case. The wash water spilled as described above causes various problems due to leakage as described above.

The present invention is proposed to solve the above problems, it is possible to prevent the washing cloth is raised above the height of the tub cover, preventing water from scattering in the washing machine that can effectively prevent the washing water from scattering during water supply and permeate washing The purpose is to propose a structure. In addition, an object of the present invention is to propose a water scattering prevention structure of the washing machine, which can improve the safety problem of the washing machine which may be generated due to outflow of the washing water.

In addition, by detecting a washing cloth that can cause water scattering by a predetermined sensing device, by allowing the washing machine to be controlled separately by the detected washing cloth, to prevent the scattering of the washing machine to more reliably prevent the washing water splashing The purpose is to propose a structure.

Water scattering prevention structure of the washing machine according to the present invention for achieving the above object is a tub accommodated wash water; A rotating tank for forming forced water flow by rotation; A tub cover formed at an upper end of the tub to guide water flow to the tub side; A light emitting part formed on an inner circumferential surface of the tub cover to emit light crossing the tub cover; And a light receiving unit to selectively receive light emitted from the light emitting unit.

According to another aspect of the present invention, a water scattering prevention structure of a washing machine includes: a tub cover for guiding water flow to a tub side in a permeable washing machine; A net formed inside the tub cover to prevent the washing cloth from rising; In order to detect the laundry cloth protruding beyond the mesh, a light emitting part and a light receiving part are formed at a position spaced apart from the inner circumferential surface of the tub cover.

Hereinafter, with reference to the drawings will be described a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily suggest other embodiments within the scope of the same idea.

1 is a cross-sectional view of a washing machine to which the idea of the present invention is applied.

Referring to FIG. 1, the transmission washing machine includes a case 1 forming an external appearance, a tub 2 disposed inside the case 1 to accommodate washing water, and a rotatable inside the tub 2. A plurality of rotating tub 3, the body of the rotating tub 3 is formed integrally with the through-hole 10 and the central part of the rotating tub 3 to allow the wash water to flow to the tub (2) A pulsator 4 rotated together with the rotary tub 3, a tub cover 5 fastened to the upper portion of the tub 5, a water supply valve 9 and a water supply port 8 so that the washing water is properly supplied. And a drain valve 7 and a drain port 6 for draining the wash water. In addition, one side of the inner circumference of the tub cover 5 includes a net 11 for preventing the laundry cloth from rising above the height of the tub cover 5. In addition, the light-emitting unit 12 and the light-receiving unit 13 to detect the laundry cloth to extend beyond the net 11, so that no water scattering occurs by the laundry cloth is included.

In detail, the tub 2 has an open cylindrical shape and serves to receive the wash water in the case 1. In addition, the rotating tub 3 is installed inside the tub 2 to be selectively rotated in the forward and reverse direction, the wash water accommodated in the rotating tub 3 through the tub 10 through the tub (10). You can exit to side (2). The through hole 10 may be dehydrated by the moisture that is wet to the laundry cloth during dewatering, and the wash water is circulated to the tub (2) through the rotating tub (3) during permeation washing.

In detail, the pulsator 4 is integrally installed at the lower portion of the rotary tub 3 to rotate together with the rotary tub 3. In addition, the tub cover 5 is fastened to the upper portion of the tub 2 to perform the function of guiding the permeated water back to the rotary tub 3 during permeation washing, and extends to the inside of the tub cover 5. The net 11 is performed to suppress the rise of the laundry cloth.

In addition, the net 11 is not only serves to suppress the rise of the laundry cloth, is formed on the lower side of the water supply port 8, to suppress the water flowing from the water supply port 8 directly hit the laundry cloth. do. In other words, at least the laundry cloth cannot rise above the position where the net 11 is formed, so even when water flows into the water supply port 8 formed directly above the net 11, the wash water is immediately Since it does not collide with the laundry cloth, it will not leak beyond the tub cover.

In addition, when the laundry cloth reaches beyond the net 11, the laundry cloth is sensed by the light emitting unit 12 and the light receiving unit 13, so that the control operation of the washing machine is stopped or the rotational speed is lowered. Do not cause water splashes.

In the washing machine according to the present invention, the washing water flow during permeation washing will be described in detail.

The pulsator 4 and the rotating tank 3 are integrally formed, and the rotating tank 3 and the pulsator 4 are rotated at high speed by the motor 13. In addition, the wash water in the rotary tub 3 separates the contaminants attached to the laundry pad from the laundry cloth while passing through the laundry cloth by the centrifugal force formed by the high-speed rotation of the rotary tub 3. Then, the wash water passing through the laundry cloth is moved to the tub 2 through the through-hole 11 formed in the rotary tub (3). In addition, the wash water introduced into the tub 2 rises along the inner surface of the tub 2 by centrifugal force. The water level of the washing water in the rotating tub 3 will be made of a (U) shape as shown by the centrifugal force.

In addition, a tub cover 5 is installed at the upper portion of the tub 2, so that the washed water is no longer raised and collides with the tub cover 5. In order for the wash water to contact the tub cover 5 and smoothly flow into the tub 2, the contact portion of the vertical and horizontal surfaces of the tub cover 5 may be gently curved. As such, the washing water that has collided with the tub cover 5 is re-introduced into the rotating tub 3, and the washing cloth is struck by a strong stream of water, thereby dropping the dirt stuck on the washing cloth.

In the series of processes as described, the washing water accommodated in the rotating tub 3 is the first washing process in which the permeation washing is performed by centrifugal force, and the washing is performed while hitting the washing cloth by the drop of the washing water. Washing is performed by a second washing process, which can be performed repeatedly as a series of cycles. In addition, washing may be performed by an operation in which the pulsator 4 and the laundry cloth collide with each other by the rotation operation of the pulsator 4.

On the other hand, even at the time of water supply, the laundry cloth cannot rise above the predetermined height by the net 11 at the straight bottom side of the water supply port 8. Therefore, the wash water supplied through the water inlet 8 may not flow over the tub cover 5 by colliding with the laundry cloth, but may flow into the tub 2 correctly. That is, when the permeation washing stroke is performed, the net 11 not only does not raise the laundry cloth more than a predetermined height, but also performs a function of preventing the washing water from overflowing even when water is supplied with the washing water.

Furthermore, when the laundry cloth rises beyond the net 11, the light emitted from the light emitting part 12 is blocked by the laundry cloth and thus does not reach the light receiving part 13, so the laundry cloth is blocked by the light blocked. It can be seen that it protrudes beyond the height of (11). At this time, by stopping the rotation of the rotating tank or lowering the rotation speed, it is possible to more reliably prevent water splashing due to the laundry cloth.

Hereinafter, the configuration of the light emitting unit 12 and the light receiving unit 13 will be described in detail.

2 is a view for explaining the configuration of the light emitting portion and the light receiving portion according to the spirit of the present invention. 3 is a cross-sectional view taken along line AA ′ of FIG. 2.

2 and 3, as described above, the tub 2 in which the wash water is accommodated therein, the tub cover 5 curved and mounted on the upper end of the tub 2, and the tub cover 5. The net 11 is formed at a predetermined position therein, and the light emitting unit 12 and the light receiving unit 13 are formed on both sides of the net to detect the laundry cloth to rise beyond the net (11).

In detail, the light emitting unit 12 may use a predetermined light source exemplified as an LED, and emits light by an external power source. The light emitted from the light emitting part 12 crosses the upper end of the tub cover 5 and reaches the light receiving part 13. In addition, when the light emitted from the light emitting unit 12 arrives normally and the light is detected, the light receiving unit 13 does not protrude the tubing cover 5 beyond the tub cover 5, and determines that the operation of the washing machine is normal. . A photo transistor may be used as the light receiver 13.

However, when the light emitted from the light emitting unit 12 is blocked by the laundry cloth and does not reach the light receiving unit 13, the laundry cloth exemplified by a pillow or a blanket protrudes beyond the tub cover 5, so that normal washing is performed. This is the case when administration is not performed. At this time, the washing water can be suppressed from being scattered by stopping the rotation of the drum or reducing the water flow by lowering the rotation speed.

In other words, when the washing machine is in operation, the light emitting unit 12 continuously emits light, and the light receiving unit 13 continuously detects the light emitted from the light emitting unit 12. In such a state that the state is continuously maintained, when the light emitted from the light receiving unit 13 and the light emitting unit 12 is detected, the washing machine is normally operated. However, when the light receiving unit 13 does not detect the light emitted from the light emitting unit 12, the predetermined control unit detects this to reduce the rotation speed of the rotating tank 3 or the rotation of the rotating tank 3. Stop it. By this operation, the laundry cloth is accommodated again inside the rotary tub 3, whereby the water splashing of the wash water due to the laundry cloth can be suppressed.

In addition, the light emitting unit 12 and the light receiving unit 13 is preferably formed at each end of the net 11 in order to immediately detect the laundry cloth rising beyond the net (11).

Meanwhile, although only the portion where the light emitting portion is formed is illustrated in FIG. 3, it may be easily guessed that a cross section of the same aspect is formed even at the position where the light receiving portion is formed.

4 is a view for explaining the light emitted from the light emitting unit according to the spirit of the present invention.

Referring to FIG. 4, a pulse is emitted from the light emitting unit 12. In detail, a pulse of 6 ms is emitted in a period of 1 second, and a pulse of 0.3 ms is emitted again in the pulse of 6 ms. As a result, ten pulses are emitted within one second.

When the number of pulses less than a predetermined pulse is detected among the ten unfolds, it is determined that the washing machine does not operate normally and water splash is generated, so that the operation of the rotating tub may be stopped or the rotation speed may be lowered.

In this way, it is possible to determine the presence or absence of water scattering by using the pulse number because the laundry cloth protruding upward of the tub cover 5 is rotated at a high speed, so that light is blocked by the laundry cloth for a specific time. It is to. In addition, the light is blocked by the washing water splashing during operation in the operating state of the normal washing machine is to determine the normal operation.

Preferably, when seven or more pulses are detected among the ten pulses described above, it may be determined that the laundry cloth protrudes to cause water splashing.

On the other hand, in the above-described embodiment of the present invention, the light emitted from the light emitting unit 12 may be diffused by the laundry cloth and incident to the light receiving unit 13. Although the light must be blocked by the laundry cloth due to this cause, there is a risk of being incident on the light receiving unit 13. Thus, even though the rotational speed of the washing machine must be lowered or stopped, the washing machine can be continuously operated.

This often occurs when white laundry cloth is washed.

5 and 6 are views illustrating another embodiment of the present invention, in which light emitted from the light emitting unit 12 is reflected by the laundry cloth to prevent malfunction of the washing machine which may be generated by being introduced into the light receiving unit 13. The purpose is to do that.

Referring to FIG. 5, the light emitting portion 12 is accommodated in the predetermined rib 15, and the light receiving portion 13 is also accommodated in the predetermined rib 16. By such a configuration, the linearity of the light emitted from the light emitting part 12 is increased, and the degree of selection of the light incident on the light receiving part 13 is increased, whereby the light reflected by the laundry cloth is incident on the light receiving part 13. Can be reduced.

In other words, the light emitted from the light emitting unit 12 is emitted only within a predetermined diffusion range blocked by the rib 15 to increase the straightness of the light to reduce the amount of light reflected by the laundry cloth. In addition, the light incident on the light receiving unit 13 allows only the light traveling straight within a predetermined range by the rib 16 to increase the selectivity of the light. As such, only light falling within a predetermined angle range is incident through the light receiving unit 13, so that light reflected at an arbitrary angle by the laundry cloth is not incident on the light receiving unit 13.

As described above, by reducing the degree of reflection of the light emitted by the rib 15 of the light emitting unit, it is possible to increase the sensitivity of the laundry cloth. The light reflected by the laundry cloth is not incident by the ribs 16 of the light receiving unit, so that only normal light is received, thereby increasing the selectivity of the light, thereby increasing the sensitivity of the laundry cloth. Thus, the sensitivity of the laundry cloth can be improved by the rib 15 of the light emitting part and the rib 16 of the light receiving part.

Referring to FIG. 6, the light emitted from the light emitting part 12 is emitted straight by the rib 15 of the light emitting part 12, and only the light traveling straight by the rib 16 of the light receiving part 13 is directed. It can be seen that incident to the light receiving portion 13.

According to various embodiments of the present invention as proposed, it is possible to reliably suppress the water scattering phenomenon generated during permeation washing.

According to the present invention, the washing cloth can be prevented from being raised above the height of the tub cover, and the washing water can be effectively suppressed from scattering during water supply and permeation washing. Furthermore, it is possible to improve a problem regarding the safety of the washing machine that may be generated due to the outflow of the washing water.

In addition, the rise of the laundry cloth by the physical network can be suppressed, and when the water splash is generated by a predetermined sensing device, the washing machine is automatically stopped or operated at a low speed so that the washing machine is stable. It can be operated as.

1 is a cross-sectional view of a washing machine to which the idea of the present invention is applied.

2 is a view for explaining the configuration of a light emitting portion and a light receiving portion according to the spirit of the present invention.

3 is a cross-sectional view taken along line AA ′ of FIG. 2;

4 is a view for explaining the light emitted from the light emitting unit according to the spirit of the present invention.

5 and 6 illustrate another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

DESCRIPTION OF SYMBOLS 1 Case 2 Tub 3 Rotary tank 4 Pulsator

5 tub cover 6 drain port 7 drain valve 8 water supply port

DESCRIPTION OF SYMBOLS 9 Feed valve 10 Holes 11 Mesh 12 Light emitting part

13: light receiver

Claims (10)

Tub for washing water; A rotating tank for forming forced water flow by rotation; A tub cover formed at an upper end of the tub to guide water flow to the tub side; A light emitting part formed on an inner circumferential surface of the tub cover to emit light crossing the tub cover; And Water scattering prevention structure of the washing machine including a light receiving unit for selectively entering the light emitted from the light emitting unit. The method of claim 1, The light emitting unit is a water scattering prevention structure of the washing machine LED. The method of claim 1, The light receiving unit is a water scattering prevention structure of the washing machine is a photo transistor. The method of claim 1, Water scattering prevention structure of the washing machine is formed on the inner surface of the tub cover to prevent the rise of the laundry cloth. The method of claim 1, Water scattering prevention structure of the washing machine includes a rib surrounding the light emitting portion on the outside of the light emitting portion. The method of claim 1, The water scattering prevention structure of the washing machine includes a rib surrounding the light receiving portion on the outside of the light receiving portion. The method of claim 1, The light emitting unit is a water scattering prevention structure of the washing machine in which the pulse is emitted. The method of claim 1, The light emitting unit emits a pulse, the light receiving unit detects the pulse, the water scattering prevention structure of the washing machine for detecting the rise of the laundry cloth according to the number of pulses detected. In the permeable washing machine, A tub cover for guiding water flow to the tub side; A net formed inside the tub cover to prevent the washing cloth from rising; In order to detect the laundry cloth protruding beyond the net, water scattering prevention structure of the washing machine includes a light emitting portion and a light receiving portion is formed in a pair of spaced apart position of the inner circumferential surface of the tub cover. The method of claim 9, The light emitting unit and the light receiving unit is water scattering prevention structure of the washing machine formed on both side ends of the network.