KR100937412B1 - Washing machine having floating laundry detecting device - Google Patents

Abstract

The present invention relates to an apparatus which is formed in the outer tub of the washing machine to detect the floating of the laundry to prevent scattering of the wash water during permeation and water supply.

To this end, the washing machine according to the present invention is selectively rotatable inside the main body 10 forming the exterior of the washing machine, the outer tub 20 fixedly installed in the main body 10, and the outer tub 20. An installed inner tub 30 and a fastening tub cover 50 on an upper portion of the outer tub 20; Characterized in that it comprises a mesh structure (M) is installed on the inside of the tub cover (50).

In addition, the long side surface 54, which is a side end of the mesh structure M, is provided with an electrode sensor S, which is a sensing means for detecting wash water. In addition, the lower end of the long side surface 54 is formed with a metal coating to prevent wear by laundry.

Washing machine, electrode sensor, tub cover, mesh type, water supply, transmission, scattering

Description

Washing machine having floating laundry detecting device

1 is a cross-sectional view of a conventional permeable washing machine,

2 is a cross-sectional view of a permeable washing machine according to the present invention;

3 is a bottom view of the tub cover according to the present invention,

Figure 4a is a perspective view showing a mesh structure and a sensing member according to the first embodiment of the present invention.

4B is a perspective view showing a mesh structure and laundry according to a second embodiment of the present invention;

Figure 4c is a perspective view showing a mesh structure and the laundry according to the third embodiment of the present invention

5a is a partial perspective view showing a state in which laundry is placed below the mesh structure according to the present invention;

Figure 5b is a partial perspective view showing a state in which the laundry contact the electrode sensor according to the present invention

Explanation of symbols for the main parts of the drawings

10: main body 20: outer tub

30: inner tub 40: washing wing                 

50: tub cover 52: space part

M, M ', M' ': Mesh structure S: Electrode sensor

The present invention relates to a washing machine, and more particularly, to prevent the washing water from splashing on the laundry during permeation or water supply in the permeation washing machine.

In general, the automatic washing machine is a product that removes contaminants such as clothes and bedding by using friction and impact of water flow due to emulsification of detergent and rotation of the washing blade. Automatically set the method, watering up to the appropriate level according to the amount and type of laundry, and washing under the control of the controller.

1 is a cross-sectional view of a conventional permeable washing machine. Referring to this, the permeable washing machine includes a main body 1 having a large appearance, an outer tub 2 fixed inside the main body 1, and an inside of the outer tub 2; Inner tub (3) rotatably installed in the inner part, washing blade (4) integrally molded in the inner tub (3) and rotated together, and tub cover (5) fastened to the upper portion of the outer tub (5) ) And a driving means 6 for transmitting a driving force to the inner tub 3.

The outer tub 2 has a cylindrical shape in which the upper part is opened, and serves to receive the washing water in the body 1.

In addition, the inner tub 3 is installed inside the outer tub 2 and can be selectively rotated in the forward and reverse directions.

The washing blade 4 is integrally installed at the lower portion of the inner tub 3 and rotates together with the inner tub 3.

In addition, the tub cover 5 is fastened to the upper portion of the tub 2 and serves to guide the water permeated during permeation to the inner tub 3 again.

In the washing machine configured as described above, the washing water flow during permeation washing will be described in detail.

In the conventional permeation washing machine, the washing blade 4 and the inner tub 3 are integrally formed, and the inner tub 3 and the washing blade 4 are configured to rotate at a high speed by the driving means 6.

The wash water in the inner tub 3 separates the contaminants attached to the laundry material from the laundry while passing through the laundry by the centrifugal force formed by the high speed rotation of the inner tub 3.

Then, the wash water that has passed through the laundry passes through the dehydration hole (3a) formed in the inner tub (3) to move to the outer tub (2).

In addition, the washing water introduced into the outer tub 2 rises along the wall surface of the outer tub 2 by centrifugal force.

At this time, the dehydration hole (3a) is formed on the side wall of the inner tub (3) so that the wash water in the inner tub (3) is able to move out of the dehydration hole (3a).

And the tub cover (5) is installed on the upper portion of the tub 2, the raised washing water is no longer raised and collides with the tub cover (5). Washing water impinged on the tub cover (5) is to repeat the process of being re-introduced into the inner tub (3) to perform the washing.

That is, the washing water exiting from the inner tub 3 toward the outer tub 2 by the rotational force of the inner tub 3 rises on the inner circumferential surface of the outer tub 2, and the raised washing water is the tub cover 5. After colliding with the inner tub 3, the process flows back into the inner tub 3 again.

In the case of permeation laundering, washing is more effective than the conventional washing method because the washing water passes through the laundry and passes through the two steps of tapping the laundry by falling through the washing water.

However, as described above, when the washing water to be re-introduced into the inner tub (3) hits the floating laundry, it may not be completely re-introduced into the inner tub (3). This situation occurs mainly when laundry is protruded upward from the tub cover 5 and washing is performed.

The case where the laundry protrudes above the tub cover 5 occurs when a large amount of laundry is put into the inner tub 3. That is, when a large-capacity duvet lamp is put into the inner tub 3, the corner of the duvet or the like may protrude to the tub cover 5 position. And the size is completely put into the inner tub (3), but in the case of a bed pillow that swells like a balloon when the wash water is supplied to float in the water similarly protrudes to the top of the tub cover (5).                         

In particular, in the case of the pillow for the bed as described above, due to the characteristic of floating in water, the washing water that is injected into the inner tub (3) during the permeate washing is scattered to the outside by hitting the pillow. In other words, the washing water to be introduced into the inner tub (3) by the tub cover (5) during permeation washing flows down between the outer tub (2) and the main body (1).

When the leaked wash water falls out of the outer tub (2) and hits the bottom surface of the washing machine, it jumps up and enters the electrical equipment provided at the lower portion of the outer tub (2), causing problems such as shorts in the electrical appliances, resulting in a fire or safety accident. May occur.

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. In addition, when the electricity generated from the electric equipment of the washing machine is leaked by the wet carpet, serious problems may occur.

The present invention is to solve the above problems, the first object of the present invention is to prevent the scattering of water by preventing the laundry does not protrude more than the height of the tub cover during washing.

The second object of the present invention is to detect water when the laundry protrudes over the tub cover and to control the washing machine to prevent water from scattering through the rotational speed control of the washing tank rather than the floating position control of the laundry.

In order to achieve the above object, the present invention and the main body forming the appearance of the washing machine; A cylindrical outer tub fixedly installed in the main body and having an open top; An inner tub selectively rotatably installed in the outer tub; A washing blade installed below the inner tub and rotating together with the inner tub; A tub cover fastened to an upper portion of the tub for supplying water permeated during permeation washing to an inner tub; A mesh structure installed inside the tub cover; It is provided with a fully automatic washing machine comprising a drive means for transmitting a driving force to the inner tub.

At this time, the mesh structure is characterized in that it is installed across the inner region of the tub cover to connect the inner peripheral side and the other side of the tub cover.

In addition, a space portion is formed between the mesh structure and the inner circumference of the tub cover.

On the other hand, according to another aspect of the invention, the main body forming the appearance of the washing machine; A cylindrical outer tub fixedly installed in the main body and having an open top; An inner tub selectively rotatably installed in the outer tub; A washing blade installed below the inner tub and rotating together with the inner tub; A tub cover fastened to an upper portion of the tub for supplying water permeated during permeation washing to an inner tub; A mesh structure installed across the inner circumference of the tub cover and having a sensing sensor installed at a long side of the side end to detect washing water; Fully automatic washing machine comprising a driving means for transmitting a driving force to the inner tub is characterized in that it is provided.

The sensor may be formed as an electrode sensor having a function of transmitting an electrical signal to a controller.

In addition, it is preferable to form a metal coating layer on the long side surface of the mesh structure, in another embodiment is characterized in that it is possible to attach a metal tape.

Hereinafter, a preferred embodiment of a fully automatic washing machine according to the present invention will be described in detail with reference to the drawings.

2 is a sectional view of a permeable washing machine according to the present invention.

As shown, the transmission washing machine according to the present invention has a main body 10 forming an appearance, an outer tub 20 fixed to the main body 10, and an inner tub selectively rotating inside the outer tub 20 ( 30, a washing blade 40 that rotates together with the inner tub 30, the tub cover 50 is fastened to the upper portion of the outer tub 50, the driving means for transmitting a driving force to the inner tub 30 ( And b).

The outer tub 20 accommodates the wash water inside the main body 10 and is fixedly installed on the main body, and has an open top. In addition, the washing water may be permeated by rising along the inner circumferential surface of the outer tub 20.

In addition, the inner tub 30 is installed inside the outer tub 20 to be selectively rotated in the forward and reverse directions.

And a dehydration hole is formed on the surface of the inner tub 30, the wash water in the inner tub 30 can move out of the dehydration hole to move to the outer tub (20).

The washing blade 40 is integrally installed at the lower portion of the inner tub 30 and rotates together with the inner tub 30. Contaminants such as dust attached to the laundry may be separated from the laundry by colliding the laundry on the laundry wing 40.

And, the tub cover 50 is fastened to the upper portion of the tub 20 to function to supply the water permeated during permeation washing to the inner tub 30. The washing water transferred from the inner tub 30 to the outer tub 20 by the rotational force of the washing machine rises on the outer tub 20, and the raised washing water collides with the tub cover 50 to allow the inner tub 30. ) Is re-introduced.

In the conventional transmission washing machine, the washing blade 40 and the inner tub 30 are integrally formed, and the inner tub 30 and the washing blade 40 are configured to rotate at a high speed by the driving means B.

The wash water in the inner tub 30 removes contaminants while passing through the laundry by centrifugal force formed by the high speed rotation of the inner tub 30. Then, the wash water passing through the laundry passes through the dehydration hole formed in the inner tub 30 to move to the out tub 20.

The washing water introduced into the outer tub 20 rises along the wall surface of the outer tub 20 by centrifugal force.

And the tub cover 50 is installed on the upper portion of the tub 20, the raised washing water does not continue to rise and hit the tub cover 50. The washing water that has collided with the tub cover 50 is to be washed again by repeating the process of re-introducing the inner tub 30 again.                     

On the other hand, Figure 3 shows the bottom structure of the tub cover 50. As shown in the lower portion of the tub cover 50 is a structure in which the permeated water can be smoothly introduced into the inner tub 30 is formed.

First, a first direction switching rib 51 for converting the direction of the raised wash water into the center direction of the inner tub 30 is molded. The second diverting rib 51a is formed to be symmetrical with the first diverting rib 51. Since the inner tub 30 rotates forward and backward, it is preferable that first and second directional ribs 51 and 51a are symmetrical to each other.

In addition, the lower direction guide ribs 53 are disposed on the inner circumferential surface of the tub cover 50 so as to supply the washing water changed by the first direction switching ribs 51 toward the laundry located in the inner tub 30. ) Is provided. In addition, the dispersion prevention ribs 55 formed on the bottom surface of the tub cover 50 is further provided to prevent the dispersion of the wash water induced by the first direction switching ribs 51 and the lower direction induction ribs 53. .

In addition, the first through-hole 57 is provided to minimize the scattering of the wash water due to the impact of the washing water changed by the first turning rib 51 against the lower induction rib 53.

The first through hole 57 is provided in the lower direction guide rib 53 at the end of the first direction switching rib 51.

In addition, the second through-hole 57a is further provided to minimize the scattering of the wash water due to the impact of the washing water changed by the second turning rib 51a against the lower turning rib 53. . The second through portion 57a is provided in the lower direction guide rib 53 at the end of the second direction switching rib 51a.

The first and second diverting ribs 51 and 51a are guided to the first and second turning ribs 51 and 51 in order to prevent deformation of the first and second turning ribs 51 and 51a due to the water spraying state due to the vortex while guiding the washing water. It is further provided with a plurality of reinforcing ribs 58 connecting the switching ribs 51a.

On the other hand, the mesh structure (M) is formed on the lower side of the water supply portion to which the wash water is supplied so that the laundry does not protrude beyond the upper surface of the tub cover 50. The mesh structure M is formed in the inner region of the tub cover 50 as shown in FIG.

4A is a perspective view showing in detail the mesh structure M according to the first embodiment of the present invention.

The mesh structure M according to the first embodiment of the present invention prevents the washing water from colliding with the laundry protruding upward from the tub cover 50 when the inner tub 30 rotates while the washing water is supplied. In order to be installed in the lower portion of the water supply is preferred. And the mesh structure (M) is installed in the inner region of the tub cover 50, it is formed across the inner peripheral side and the other side.

In addition, the mesh structure M may be injection molded integrally with the inner tub 30, or may be detachably coupled by forming a detachable structure on an inner circumference of the inner tub 30.

In addition, the mesh of the mesh structure (M) is preferably formed so narrow that a portion of the laundry does not protrude between the mesh by buoyancy, installed in a size large enough that the washing water is not hit back to the mesh hitting the mesh It is preferable.

In addition, the space 52 is preferably formed between the mesh structure M and the inner circumference of the tub cover 50. The space 52 is, when the laundry is in close contact with the lower portion of the mesh structure (M) at the time of supplying the wash water is not supplied smoothly through the mesh structure (M), to supply the wash water to the inner tub (30) Is necessary. If the laundry is in close contact with the mesh structure M, when water is supplied without the space portion 52, the water supplied is overflowed to the top of the tub cover 50.

In addition, a sensing sensor is installed as a whole over the long side surface 54 of the mesh structure M, and in one embodiment, an electrode sensor S is installed.

The electrode sensor S functions to transfer an electrical signal to the controller. That is, according to the present invention, when the laundry rises above the height at which the electrode sensor S is installed and contacts the two electrodes forming the electrode sensor S at the same time, the change in the resistance value between the two electrodes is read. As a result, the floating of the laundry is detected.

In addition, the mesh structure (M) of the mesh structure of the present embodiment serves to block the laundry to be installed on the water supply side so that the rising washing water is not floating above the mesh structure (M) near the water supply and positioned below. By doing so, it serves to prevent the water splashing phenomenon of the water supplied from the water supply.

On the other hand, the washing water contact to the electrode sensor (S), may occur when the washing water that is irregular movement during water supply or washing rises and splashes. When the laundry wet with water does not catch the lower surface of the mesh structure M, it exits the mesh structure M and protrudes to the upper portion of the tub cover 50 to contact the long side of the mesh structure M. Will also occur.

However, the electrode sensor S is set not to detect a small amount of wash water that is instantaneously in contact with a narrow area, but to detect wash water that is continuously contacted over a wide portion. That is, when the laundry exiting the mesh structure M and protruding to the upper portion of the tub cover 50 contacts the long side surface of the mesh structure M over a predetermined area to a degree such that a change in resistance is caused. The sensor S may detect laundry.

In the case where the electrode sensor S is sensed as described above, the laundry is kept from the water supply unit by the width of the mesh structure M. Therefore, in the above state, the washing water supplied to the laundry does not reach the laundry so that the washing water collides with the laundry and does not occur.

However, when the water supply is completed in the state in which the laundry protrudes to the upper surface of the mesh structure M and the forward and reverse rotation of the inner tub 30 is performed, the laundry that has been in contact with the mesh structure M is a mesh structure M ) You will leave the installation area. And laundry outside the mesh structure (M) installation area is in contact with the tub cover 50, in this case collides with the wash water flowing into the inner tub 30 by permeation washing to cause the wash water to scatter.

That is, when the laundry protrudes above the upper surface of the mesh structure M or the tub cover 50, there is no problem that the wash water collides with the laundry due to the addition of the wash water during water supply.                     

However, it is preferable to install the electrode sensor S on the long side surface 54 of the mesh-shaped structure in order to detect the floating of the laundry and prevent it through the control of the rotational speed of the washing machine because the scattering of the wash water is a problem during permeation washing. Do.

Referring to the operation of the washing machine of the present invention configured to prevent the washing water scattering and floating laundry of the embodiment as described above are as follows.

First, the laundry is put into the interior of the inner tub 30 coupled to the permeable washing machine of FIG. 2 and starts washing by pressing a washing start button. When the washing machine starts to operate, washing water flows into the inner tub 30, and at the same time, the driving means B starts driving.

In addition, the inner tub 30 and the washing blade 40 are simultaneously rotated at a high speed by the driving means 60. At this time, the wash water in the inner tub 30 passes through the laundry and is discharged to the outer tub 20 through the washing holes of the inner tub 30. And the wash water discharged to the outer tub 20 ascends to the upper side on the inner wall surface of the outer tub 20 by the centrifugal force by the high-speed rotation of the inner tub 30 continues.

In addition, the washing water rising to the upper side of the tub 20 is re-supplied into the inner tub 30 by the guide of the tub cover 50. As described above, the permeable washing machine of the present invention may perform permeation washing while circulating washing water forming a 'V' shape.

5A and 5B, the relationship between the mesh-shaped structure M and the laundry will be described. FIG. 5A is a perspective view illustrating a state in which laundry is caught in a lower portion of the mesh structure M, and FIG. 5B illustrates a state in which laundry is in contact with the long side portion of the mesh structure M while leaving the mesh structure M. Referring to FIG.

First, in FIG. 5A, laundry is placed on a lower portion of the mesh structure M, and the washing water is supplied to the space 52 and the mesh structure M, and the washing water does not occur when the laundry collides with the laundry. And since the laundry is located on the lower portion of the mesh structure (M), even when the inner tub 30 is rotated similarly does not occur when the wash water hits the laundry.

And 5b is a case where the laundry is projected to the upper portion of the tub cover 50 without being caught in the mesh structure (M). In this case, the laundry is in contact with the electrode sensor (S) installed in the long axis of the mesh structure (M) and the electrical signal by the detection of the electrode sensor (S) is transmitted to the controller, in this case, the rotational force of the washing machine under the control of the controller The water scattering can be prevented by reducing the permeation so that the permeation is not reduced.

In addition, by stopping the rotation of the inner tub 30, the laundry can be rearranged so that the laundry does not protrude beyond the tub cover 50.

On the other hand, Figure 4b shows another embodiment of the mesh structure M 'according to the present invention.

The mesh structure M 'illustrated in FIG. 4B is also formed on the inner circumferential surface of the tub cover 50 in the form of a net, and is formed on the lower side of the water supply unit to which the wash water is supplied. And as shown, the mesh and the width of the mesh structure (M ') is formed so wide that it functions as the space 52 without the space 52 formed in the embodiment of Figure 4a.

In addition, a metal coating layer is formed on the lower side surface of the mesh structure M '. Since the lower side of the side of the mesh structure (M ') is mainly rotated in contact with the laundry, the laundry or mesh structure (M') is abrasion occurs by friction.

That is, since the lower side of the side of the mesh structure (M ') is rubbed with the laundry every time the wear occurs as the use of the washing machine proceeds for a long time. And the surface of the lower side of the side of the mesh structure (M ') due to abrasion becomes rough and the laundry is damaged when the laundry touches the rough surface.

In order to prevent damage to the mesh structure M 'and the laundry as described above, the lower end of the side surface of the mesh structure M' is abrasion resistant and is protected by a metal material which forms a smooth surface which does not generate friction with the laundry. desirable.

For example, by coating the lower end of the mesh structure M 'with a metallic material, the mesh structure M' may be protected and other embodiments may be applied.

That is, attaching a tape made of metal such as aluminum to the lower end of the long side surface of the mesh structure M 'may be an embodiment for protecting the mesh structure M'.

4C shows another embodiment of the mesh structure M ″ according to the present invention.

The mesh structure M ″ is formed at one side of the tub cover 50 of the lower part to which washing water is supplied across the tub cover 50. As shown in the drawing, a space 52 '' is formed between the tub cover 50 and the mesh structure M '' for a smooth supply of the wash water.

At this time, the mesh of the mesh structure M '' is formed to form a rectangular structure.

On the other hand, within the scope of the basic technical spirit of the present invention described above, of course, many other modifications are possible to those of ordinary skill in the art. Therefore, the present invention should be construed in accordance with the appended claims.

As described above, according to the present invention, there is an advantage of preventing the washing water from scattering during water supply and permeation washing by installing a mesh structure provided with an electrode sensor across the tub cover of the washing machine.

That is, the present invention prevents water from scattering during water supply and permeation washing so that laundry does not protrude beyond the height of the tub cover during washing, and the present invention detects this when the laundry protrudes above the tub cover through a sensing device. Through the rotation speed control of the washing tank it is possible to prevent water splash.

Claims (8)

A main body forming an exterior of the washing machine; A cylindrical outer tub fixedly installed in the main body and having an open top; An inner tub selectively rotatably installed in the outer tub; A washing blade installed below the inner tub and rotating together with the inner tub; A tub cover which is fastened to an upper portion of the tub to supply washing water that is permeated during permeation to an inner tub; A mesh structure installed inside the tub cover; Fully automatic washing machine comprising a drive means for transmitting a driving force to the inner tub. The method of claim 1, The mesh structure is a full automatic washing machine, characterized in that installed across the inner region of the tub cover to connect the inner peripheral side and the other side of the tub cover. The method according to claim 1 or 2, Fully automatic washing machine, characterized in that a space portion is formed between the mesh structure and the inner circumference of the tub cover. The method of claim 3, wherein The space part is fully automatic washing machine, characterized in that installed on the water supply side of the tub cover inner surface. A main body forming an exterior of the washing machine; A cylindrical outer tub fixedly installed in the main body and having an open top; An inner tub selectively rotatably installed in the outer tub; A washing blade installed below the inner tub and rotating together with the inner tub; A tub cover which is fastened to an upper portion of the tub to supply washing water that is permeated during permeation to an inner tub; A mesh structure installed across one side and the other side of the tub cover and having a sensing sensor installed on the long side, which is a side end, to detect washing water; Fully automatic washing machine comprising a drive means for transmitting a driving force to the inner tub. The method of claim 5, wherein The detection sensor is a fully automatic washing machine, characterized in that the electrode sensor having a function for transmitting an electrical signal to the controller. The method according to claim 1 or 5, Fully automatic washing machine, characterized in that to form a metal coating layer on the lower end of the long side of the mesh structure. The method according to claim 1 or 5, Fully automatic washing machine, characterized in that the metal tape is attached to the lower end of the long side of the mesh structure.

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