KR101010469B1 - 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; And a contact sensor formed below the inner circumference of the tub cover to detect a rise of the laundry cloth by being in contact with the laundry cloth.

According to the present invention, not only the rise of the laundry cloth can be suppressed by the physical network, but also when the water splash is generated by a predetermined sensing device, the washing machine is automatically stopped or operated at a low speed. Can be operated stably.

Washing machine, water splash

Description

Apparatus for preventing from water splash in washing machine}

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

Figure 2 is a detailed view of the touch sensor portion in Figure 1;

3 and 4 exemplarily illustrate a specific formation structure of the touch sensor.

5 is a block diagram illustrating the operation of the present invention.

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

2: Tub 3: Swivel Tank 5: Tub Cover

12: touch sensor 30: ball 20: lever

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 washing cloth is not placed under the water supply port, even if not through the washing, the water supplied through the water supply port hit the laundry cloth, it may 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; And a contact sensor formed below the inner circumference of the tub cover to detect a rise of the laundry cloth by being in contact with the laundry cloth.

Water scattering prevention structure of the washing machine according to another aspect of the present invention includes a contact detecting unit for detecting that the laundry cloth is in contact with the laundry cloth is rotated; A control unit for detecting a rise of the laundry cloth by transmitting a signal detected by the contact detecting unit; And a driving unit configured to adjust an operating state of the washing machine load when the rising of the laundry cloth is detected by the controller.

The present invention can prevent the laundry cloth from rising above the height of the tub cover, and further, 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.

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 lower side of the inner end of the tub cover 5 includes a touch sensor 12 for detecting the rise of the laundry cloth by the contact with the laundry cloth.

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 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 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.

On the other hand, when the laundry cloth that is not blocked by the net 11 is raised, the touch sensor 12 is in contact by the rotation operation of the laundry cloth, so that the rise of the laundry cloth is sensed. In addition, even if the laundry cloth does not exceed the net 11, the rising of the laundry cloth can be detected when the laundry cloth is in contact with the touch sensor 12 in another portion where the net 11 is not formed.

That is, when the laundry cloth is rotated by forced water flow, the laundry cloth touches the touch sensor 12 so that the touch sensor 12 is turned on, and such turn-on signal of the touch sensor 12 is transmitted to the controller of the washing machine. By lowering the rotation speed or pausing the rotation when the washing machine is operated, it is possible to prevent water splashing.

FIG. 2 is a detailed view of a touch sensor part in FIG. 1.

Referring to FIG. 2, as already described, the tub 2, the rotary tub 3, and the tub cover 5 are included. In addition, a touch sensor 12 is further formed on the lower side of the inner end of the tub cover 5. Since the operation and operation of the touch sensor have already been described, reference may be made to this.

3 and 4 exemplarily illustrate a specific formation structure of the touch sensor.

Referring to FIG. 3, a ball 30 is used as the touch sensor 12, and in detail, a recess 31 having a predetermined shape formed inside the tub cover 5 and the recess 31 are formed. The ball 30 formed therein, the cover 32 to prevent the ball from falling out after the ball 30 is accommodated in the recess 31, and the ball 30 is rotated in contact with the laundry cloth When the rotation of the ball 30 is detected by the displacement sensor 33 that can detect the rise of the laundry cloth. The displacement sensor 33 may be a sensor such as a roller using a computer operation, or a magnetic sensor capable of reacting by a magnet accommodated in the ball 30 may be used.

Referring to the operation of this configuration, when the laundry cloth is in contact with the ball 30, the ball 30 is rotated, the rotational motion of the ball 30 is detected by the displacement sensor 33, the displacement sensor 33 is The washing cloth is transferred to the control unit of the washing machine. Of course, if the washing cloth is raised, the control unit can be made to suppress the water scattering by a method such as stopping the rotation of the rotational speed, lowering the rotational speed.

Referring to FIG. 4, the lever 20 is used as the touch sensor 12. In detail, the recess 21 is formed on the lower side of the inner end of the tub cover 5, and the interior of the recess 21 is shown. One end is received and the other end is extended to the lower side, the lever 20 is formed in the interior of the depression 21 and the lever 20 is fixed to the position formed by the depression 21 by the hinge 22 is further A contact sensor 24 is generated to transmit a predetermined signal to the control unit by an operation of contacting the contact end 23 of the lever 20.

Referring to the operation of this configuration, when the laundry cloth is raised during the operation of the washing machine and the laundry cloth touches the lever 20, the lever 20 is moved from the original position to another position. At this time, the contact end 23 and the contact sensor 24 is in contact or fall. In other words, the contact operation of the contact end 23 and the contact sensor 24 is changed. When the contact state is changed in this way, the form of the signal transmitted from the contact sensor 24 to the controller of the washing machine is turned on or off, and the controller detects the change in the signal transmission state of the contact sensor 24 to determine the washing cloth. The rise can be detected.

Of course, by detecting the rise of the laundry cloth, the operation of slowing the rotation speed of the rotating tub or stopping the rotation of the rotating tub may be performed.

5 is a block diagram illustrating the operation of the present invention.

Referring to FIG. 5, the touch sensing unit 40, which can be exemplified by the touch sensor 12, the controller 41 of the washing machine to which a signal sensed by the touch sensing unit 40 is transmitted, and the controller 41 The driving unit 42 is changed to the driving state by the control signal of the.

Referring to the operation of the washing machine with reference to the block diagram of Figure 5, the touch sensing unit 40 detects the rise of the laundry cloth, the detected signal is transmitted to the controller 41, by the controller 41 As the laundry cloth rises, the washing machine detects that water splashes. In addition, if it is determined that water splashing occurs in the washing machine, the controller 41 controls the operation of the driving unit, for example, a motor to lower or stop the rotational speed of the rotational speed, thereby suppressing the splashing of water. Do it.

According to the idea of the present invention, it is possible to suppress the generation of water splashing in the washing machine, and the washing machine can be operated more stably.

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.

Claims (5)

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; And The water scattering prevention structure of the washing machine includes a contact sensor formed on the inner circumference of the tub cover to detect the rise of the laundry cloth by contact with the laundry cloth. The method of claim 1, The contact sensor is a water scattering prevention structure of the washing machine is a ball sensor. The method of claim 1, The contact sensor is a water scattering prevention structure of the washing machine is a lever sensor. The method of claim 1, The touch sensor is a water scattering prevention structure of the washing machine at least partly accommodated in the recess portion inside the tub cover. Contact detecting unit for detecting that the laundry cloth is contacted as the laundry cloth is rotated; A control unit for detecting a rise of the laundry cloth by transmitting a signal detected by the contact detecting unit; And When the rising of the laundry cloth is detected by the control unit, water scattering prevention structure of the washing machine including a driving unit for adjusting the operating state of the washing machine load.

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