CN1609330B - Washing machine - Google Patents

Abstract

The invention discloses a washing machine, which comprises: a casing; an outer tub installed in the casing to hold washing water; a rotating tub installed in the outer tub; a wave wheel rotating in the rotating tub to generate forced water flow; A bucket cover connected to the upper part of the outer tub, which is used to guide the washing water into the inside of the rotary tub when the rotary tub and/or the pulsator rotates; a net formed on the inner circumference of the tub cover; a net for the rotary tub and/or A motor that transmits power to a pulsator.

Description

washing machine

technical field

The present invention relates to a washing machine, and more particularly to a washing machine whose washing reliability is improved by preventing splashing of water which may be caused by water hitting clothes during a water supply and infiltration wash cycle.

Background technique

Generally speaking, a washing machine is an electric device used to remove dirt from clothes such as clothes and bed sheets by virtue of the chemical action of washing powder and the mechanical movement of the impeller. The usual laundry process of the washing machine includes: an operation mode setting process that is automatically performed by detecting the amount and type of laundry, a water supply process that supplies water to an appropriate height according to the amount and type of laundry, and washing, rinsing, and washing that are controlled by the control section. drying process.

Washing machines can be divided into many types according to the mode of operation. For example, there are the following methods: a method of rotating a spin/drying tub, which transmits the rotational force of the drive motor to a pulsator or a rotating shaft through a power transmission belt and pulleys; The method of spinning a spin/dryer tub at different speeds during the process by controlling the speed of a BLDC (Brushless DC) motor without using belts and pulleys; a method of having a different power transmission path that is used during the laundry process Spin the pulsator at low speed in medium and spin the pulsator and tub at high speed during the drying process; a method of performing immersion laundry by turning the spin tub or pulsator at high speed in one direction, This is achieved by rotating the barrel jet pumped water flow. In addition to the above laundry methods, there are other different laundry methods. The present invention is directed to a method of performing infiltration laundry by jetting pumped water to a rotary tub while rotating the rotary tub or a pulsator at high speed in one direction.

Generally, a washing machine using the immersion type washing method includes a pulsator integral with a rotary tub. The pulsator and the rotary barrel rotate at high speed through transmission. The water in the rotary bucket penetrates into the clothes through the centrifugal force generated by the high-speed rotation of the rotary bucket, and the dirt is removed from the clothes in the process. The water that seeps into the clothes is guided to the outer tub through many holes formed in the rotating tub, and rises along the inner wall of the outer tub, after which, the water falls into the rotating tub. When water falls into the rotary tub, the water hits the laundry, thereby performing laundry.

The immersion type washing machine is designed to perform laundry in two stages: the first stage makes water penetrate the clothes, and the second stage makes the water hit the clothes. Compared with other types of washing machines, the washing efficiency is improved.

However, this immersion type washing machine has a disadvantage that when the water hits the laundry and splashes in other directions, it may not all be introduced into the spin tub. This is often caused when laundry protrudes from the lid of the bucket.

In detail, when a large amount of laundry is put into the rotary bucket, the laundry may protrude from the bucket lid. For example, if clothes such as large bed sheets and pillows are put into the rotating bucket, a part of the clothes may protrude from the lid of the bucket. Especially for the pillow, because it has air in it, it is easy to float on the water. Therefore, the water rising along the outer tub and flowing into the rotary tub hits the protruding portion of the laundry, so that the water splashes outside. This is called the "water splash phenomenon".

When splashed water flows to the inner bottom of the washing machine through the gap between the outer tub and the cabinet, easily overlooked accidents such as fires caused by short circuits between electronic components may occur.

Also, the splashed water stains the floor around the washing machine and reduces washing water, making it difficult to perform effective laundry.

Even with other types of washing machines in which laundry is loaded from below the water supply hole, water supplied through the water supply hole may splash between the tub and the cabinet. Splashing water can also cause many of the problems mentioned above.

Contents of the invention

Accordingly, the present invention is directed to a washing machine that substantially solves one or more problems due to limitations and disadvantages of the related art.

An object of the present invention is to provide a washing machine capable of preventing laundry from protruding from a lid, thereby preventing water from splashing.

Still another object of the present invention is to provide a washing machine that prevents water from splashing by detecting laundry protruding from a tub lid and controlling a washing cycle based on the detected signal.

The other advantages, objectives and features of the present invention will partly be stated in the following description, and partly will be clearer to those of ordinary skill in the art by reading the following or obtained from the practice of the present invention. The objectives and other advantages of the invention will be understood and attained by the structure of the invention particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to achieve these and other advantages and according to the purpose of the present invention, as a general and rough description, a washing machine is provided herein, comprising: a casing; an outer tub installed in the casing to hold washing water; an outer tub installed in the outer tub a rotating barrel in the rotating barrel, which can be rotated selectively; a pulsator rotating in the rotating barrel to generate a forced water flow; a barrel cover formed on the upper part of the outer barrel, which is used to guide the The washing water enters the inside of the rotating tub; a net extending inwardly from the inner end of the lid; and a motor used to transmit power to the rotating tub and/or the pulsator.

In another aspect, the present invention provides a washing machine, comprising: a casing; an outer tub installed in the casing to hold washing water; a rotating tub installed in the outer tub, which can be selectively rotated; A pulsator that rotates in the barrel to generate forced water flow; a barrel cover installed on the upper part of the outer barrel; a net extending inward from the inner circumference of the barrel cover; an electrode sensor installed at the inner end of the net; When the clothes touch the electrode sensor, the control part receives the signal from the sensor and judges that the clothes rise; a motor used to transmit power to the rotating bucket and/or the pulsator, controlled by the control part.

In yet another aspect, the present invention provides a washing machine, comprising: an outer tub for holding washing water; a rotatable rotating tub installed in the outer tub; a barrel cover connected to the upper part of the outer barrel; The net formed by extending the inner circumference inwards is used to prevent the clothes from being lifted above the bucket lid by the washing water; a protective cover is used to protect the inner surface of the net.

In yet another aspect, the present invention provides a washing machine, comprising: an outer tub; a barrel cover formed on the upper part of the outer barrel; a net extending inward from the inner circumference of the barrel cover and having a plurality of through holes for Prevents laundry from rising but allows wash water to pass through through holes.

According to an aspect of the present invention, the washing machine further includes an open gap defined between the inner circumference of the tub lid and the outer side of the net.

According to an aspect of the present invention, a water supply hole is formed directly above the net.

According to an aspect of the present invention, the washing machine further includes an electrode sensor formed at the inner end of the net to detect the laundry contacting the inner end of the net.

According to an aspect of the present invention, the washing machine further includes a protector for protecting the inner end of the net.

According to an aspect of the present invention, the washing machine further includes a coating for protecting the inner surface of the net.

According to an aspect of the present invention, the washing machine further includes: a control part for receiving a signal from the electrode sensor and judging that the laundry rises when the laundry touches the electrode sensor.

According to an aspect of the present invention, the control part judges the rising of the laundry only when receiving the detection signal generated when the laundry touches the electrode sensor.

According to one aspect of the present invention, the electrode sensor includes a pair of electrodes, and detects the current only when the clothes touch both electrodes at the same time.

According to one aspect of the present invention, the protective cover is made of elastic material.

According to one aspect of the present invention, the protective cover is elastically connected to the inner end of the net.

According to an aspect of the present invention, the protective cover includes: a fixing portion bent from an upper portion of the protective cover so as to be inserted into the upper end of the inner end of the net; a connecting portion formed at a lower end portion of the protective cover so as to be inserted into the lower end of the inner end of the net; and a The lower end of the protective cover is slightly bent and shaped so that the connecting portion is easily inserted into the insertion end of the inner end of the net.

According to one aspect of the invention, the protective cover snaps onto the web.

According to one aspect of the invention, the inner end of the net is provided with upper and lower hooks where the protective cover is hooked.

According to one aspect of the invention, the inner end of the net is provided with two adjacent claws on one or more sides thereof to support the end into which the protective cover is inserted.

According to the present invention, since the net is formed on the tub cover, laundry does not protrude above the tub cover, thereby preventing water from splashing during a water supply cycle and a laundry cycle. Thus, easily overlooked accidents caused by splashing water can be avoided.

Also, even when the laundry protrudes above the lid, the detection part detects this situation and controls the rotation speed of the driving motor, thereby preventing water from splashing.

In addition, since the protective cover prevents the net from being frayed, clothing that comes into contact with the net is less likely to be damaged.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to further explain the invention as claimed.

Description of drawings

The accompanying drawings, which are included to provide a better understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the principle of the invention. In the attached picture:

1 is a sectional view of a washing machine according to a first embodiment of the present invention;

Figure 2 is a bottom view of the bucket lid depicted in Figure 1;

Figure 3 is an enlarged perspective view of the main part of the washing machine depicted in Figure 1;

4 is an enlarged perspective view of a main part of a washing machine according to a second embodiment of the present invention;

5 is an enlarged perspective view of a main part of a washing machine according to a third embodiment of the present invention;

6 is an enlarged perspective view of a main part of a washing machine according to a fourth embodiment of the present invention;

Fig. 7 is a block diagram illustrating the operation of the fourth embodiment;

FIG. 8 is a view illustrating a state when the laundry contacts the long side of the net depicted in FIG. 6;

9 is an enlarged perspective view of a main part of a washing machine according to a fifth embodiment of the present invention;

Figure 10 is a sectional view taken along line A-A;

Figure 11 is a perspective view of the protective cover depicted in Figure 10;

Fig. 12 is a view for explaining a state of attachment of a protective cover and a net according to a modified embodiment of the present invention.

Detailed ways

Preferred embodiments of the present invention depicted in the drawings are described in detail below, and the same reference numerals are used for the same or similar parts anywhere in the whole drawings.

first embodiment

FIG. 1 is a sectional view of a washing machine according to a first embodiment of the present invention.

As shown in the figure, the washing machine includes: a casing 1 forming the outer surface of the washing machine; an outer tub 2 installed in the casing 1 to hold washing water; a rotatable rotating tub 3 installed in the outer tub 2, on the rotating tub 3 There are a plurality of holes through which washing water can directly flow into the outer tub 2; a pulsator 4 formed in the center of the rotating tub 3 and integrated with it so as to rotate together with the rotating tub 3; A bucket cover 5; a water supply pipe 8 with a water supply valve 9 for accurately supplying water to the rotary bucket 3; a drain pipe 6 with a drain valve 7 for accurate drainage; a motor that transmits power to the rotary bucket 3 13. Also, a net 11 for preventing laundry from protruding above the tub cover 5 is formed on the inner circumference of the tub cover 5 . The washing machine also includes a plurality of tub supports 12 for supporting the tub 2 .

In detail, the outer tub 2 is formed in a cylindrical shape and has an open top through which laundry can be loaded into the rotary tub 3 . The rotating barrel 3 is installed in the outer barrel 2 to rotate clockwise and counterclockwise. The washing water stored in the rotary tub 3 directly flows into the outer tub 2 through the hole 10 on the rotary tub 3 . The function of the hole 10 is to drain the water infiltrated into the clothes during the cycle of spin-drying, and to make the water between the rotating tub 3 and the outer tub 2 form a circulation during the cycle of infiltrating into the clothes.

The pulsator 4 is integrally formed at the bottom of the rotary tub 3 so as to rotate together with the rotary tub 3 .

The bung 5 is connected to the top of the outer tub 2, and its function is to guide the water from the rotating tub 3 to flow into the outer tub 2, and then flow into the rotating tub 3 again. The function of the net 11 formed on the inner circumference of the bucket cover 5 is to compress the part of the clothes protruding above the bucket cover 5 .

The net 11 is arranged under the water supply pipe 8, and also has the function of preventing water from directly hitting the clothing. That is, since the laundry is raised above the net 11, even when water is supplied directly above the net 11, the water does not directly hit the laundry. Accordingly, water will not splash onto the top of the bucket lid.

The washing water flow during the washing cycle of the washing machine of the present invention will be described in further detail below.

The integrated pulsator 4 and rotary tub 3 are driven by a motor 13 to rotate at high speed. The washing water in the rotary tub 3 penetrates into the clothes by the centrifugal force generated by the high-speed rotation of the rotary tub 3, and takes away the dirt from the clothes. The water infiltrated into the clothes directly flows into the outer tub 2 through the holes 10 on the rotary tub 3 . The water flowing into the outer tub 2 rises along the inner circumference of the outer tub 2 under the action of centrifugal force. By the effect of centrifugal force, the water stored in the rotating bucket 3 rises in a U shape as shown in the figure.

Yet the rising of water is stopped by the bung 5 that is installed in outer bucket 2 tops. In order to make the water in contact with the bung 5 fully re-flow into the rotating bucket 3, the intersecting part of the vertical and horizontal surfaces of the bung 5 is made into a smaller curved surface. As mentioned above, the water colliding with the tub cover 5 flows back into the rotary tub 3 to generate a strong water flow colliding with the clothes, thereby taking away the dirt from the clothes.

That is, the washing machine of the present invention includes: a first washing process in which water penetrates into clothes by centrifugal force; and a second washing process in which water hits clothes when water falls into the rotary tub 3 . The first and second laundry processes are repeated as a series of cycles. Laundry can also be further performed by pulsating the pulsator 4 to beat the laundry.

Simultaneously, even during the water supply period, the clothing will be caught by the net 11 and will not protrude above the bucket cover 5 . Therefore, the water flowing in through the water supply pipe 8 will not directly hit the clothes, so the water will not splash onto the bucket cover 5 . That is, the net 11 prevents water from overflowing the tub cover 5 during the water supply process and the process of infiltrating the clothes.

FIG. 2 is a bottom view of the bucket lid depicted in FIG. 1 .

Referring to FIG. 1 , the bucket cover 5 provides a lower structure, which can fully guide the water from the outer tub 2 to flow directly into the rotary tub 3 .

In detail, the bucket cover 5 is provided with a first orientation rib 51 and a second orientation rib 52 at its lower portion. The first orientation ribs 51 and the second orientation ribs 52 form a symmetrical layout. Since the rotary tub 3 is designed to be rotatable clockwise and counterclockwise, it is preferable to make the first orienting rib 51 and the second orienting rib 52 into shapes inclined in opposite directions to each other.

Similarly, the bucket cover 5 also provides a falling water guide rib 55 for guiding the water whose direction is changed by the first orientation rib 51 to flow to the clothes contained in the rotary bucket 3 . The falling water guide rib 55 is formed along the inner circumference of the bucket cover 5 . The bucket cover 5 also provides an anti-scattering rib 54 at the lower part, which is used to prevent the water guided to the first orientation rib 51 and the falling water guiding rib 55 from spreading.

When the water whose direction is changed by the first orientation rib 51 collides with the falling water guide rib 55 , in order to minimize the splash of the formed water, the bucket cover 5 is provided with a first hole 56 . The first hole 56 is formed at the junction of the first orientation rib 51 and the falling water guiding rib 55 .

When the water whose direction is changed by the second orientation rib 52 collides with the falling water guide rib 55 , in order to minimize the splashing of the water formed in this way, the bucket cover 5 is also provided with a second hole 57 . The second hole 57 is formed at the junction of the second orientation rib 52 and the falling water guide rib 55 .

In order to prevent the first directional rib 51 and the second directional rib 52 from being deformed due to the vortex formed in the water guiding process, the barrel cover 5 also provides a plurality of reinforcements connecting the first directional rib 51 and the second directional rib 52 rib.

Meanwhile, a net 11 is formed under the water supply pipe 8 to prevent the clothes from protruding above the bucket cover 5 . The net 11 is arranged in the middle area of the bucket cover 5 . Forming an open gap 14 between the net 11 and the bucket cover 5 prevents water from overflowing the net 11 even if a large amount of water is supplied in a short time. That is, even if a large amount of water is supplied to the net 11 for a short time during the water supply cycle or the infiltration cycle, the water does not overflow the tub cover 5 but falls into the outer tub 2 through the open gap 14 .

FIG. 3 is an enlarged perspective view of a main part of the washing machine depicted in FIG. 1 .

Referring to FIG. 3 , the rotary tub 3 and the tub cover 5 formed on the upper portion of the rotary tub 3 are shown in the figure. A net 11 is formed on the opening of the bucket lid 5 . An open gap 14 is formed between the net 11 and the inner circumference of the tub cover 5 to prevent washing water from overflowing.

The net 11 is designed such that water can pass through a plurality of mesh holes formed on the net 11 . When the clothing in the rotary bucket 3 was lifted by water, the net 11 pressed the clothing so that it would not protrude from the bucket cover 5 . In order to prevent the water supplied through the water supply pipe 8 from directly hitting the clothes, a net 11 is provided directly below the water supply pipe 8 .

Although the net 11 is integrally formed with the bucket lid 5, the present invention is not limited thereto. Net 11 can be made into an independent part, can be assembled together with any one in bung 5, rotating bucket 3, outer bucket 2. However, it is most preferable to fit the net 11 on the inner circumference of the bucket lid 5 so that the net 11 can be installed directly below the water supply pipe 8 .

And each screen hole of net 11 will be small enough for clothing so that it cannot protrude from bung 5, but also large enough for water so that it cannot splash.

second embodiment

Fig. 4 depicts a washing machine according to a second embodiment of the invention.

Except for the structure of the net, this embodiment is the same as the first embodiment. The net 21 of this embodiment is also formed on the bucket lid 5, protrudes from its inner circumference, and is installed under the water supply pipe 8. As shown in FIG. Each mesh of the net 21 is relatively large compared with the first embodiment. Therefore, even if there is no open gap (refer to 14 in FIG. 3 ) like in the first embodiment, overflow of wash water can be prevented.

third embodiment

Fig. 5 depicts a washing machine according to a third embodiment of the present invention.

Referring to FIG. 5, this embodiment is the same as the first embodiment except for the structure of the net. The mesh of this embodiment is designed to have meshes formed by a plurality of beams aligned in the same direction, ie, transverse or longitudinal. However, the mesh of the first embodiment is designed to have a rectangular mesh formed by a plurality of beams arranged in both the transverse and longitudinal directions. The provision of an open gap 34 prevents water from escaping.

Fourth embodiment

Fig. 6 depicts a washing machine according to a fourth embodiment of the present invention.

Referring to FIG. 6, the washing machine of the present invention is provided with a rotary tub 3, a net 41 and an open gap 44 like the washing machine of the first embodiment. Moreover, the washing machine further includes first and second electrode sensors 42 and 43 installed on the net 41 . When the clothing touches the first and second electrode sensors 42 and 43, the first and second electrode sensors 42 and 43 are electrically connected, and they can detect that the clothing has risen to the height of the net 41. When it is detected that the laundry rises to the height of the net 41, the rotational speed of the rotary tub 3 is slowed down or the rotation of the rotary tub 3 is temporarily stopped, thus preventing water from splashing out.

The operation of the first and second electrode sensors will be described in more detail below.

The first and second electrode sensors 42 and 43 may be electrically connected when wash water rises or fluctuates irregularly during a water supply cycle and a washing cycle, or when laundry touches a long side of the net 41 .

Since the former is a normal state, it can be ignored. That is, in order to detect the state that the clothes 48 have risen beyond the preset height, the electrode sensors 42 and 43 are designed to be unable to detect a small amount of washing water that touches the small area of the net 41, but can detect the washing that continuously touches the large area of the net 41. water. That is, the electrode sensors 42 and 43 can detect the laundry when the laundry protruding from the lid 5 touches a large enough portion of the long side of the net 41 for a long enough time to change the impedance value. The electrode sensors 42 and 43 prevent water from splashing out by detecting the clothing protruding from the bucket lid 5 .

In detail, during the water supply cycle, even if the clothes protrude from the bucket cover 5 without the net and the water hits the clothes, it will not splash out. However, during the infiltration washing cycle, the wash water hits the laundry that has risen beyond a preset height. In this case, since the water may splash, the rising of the laundry should be detected, so that the rotation speed of the washing machine can be controlled to prevent the water from splashing.

Fig. 7 is a block diagram illustrating the operation of the fourth embodiment.

Referring to FIG. 7 , there is provided a detection portion 45 formed on one long side and defined by electrode sensors 42 and 43 . The signal generated by the detection section 45 is sent to the control section 46 . According to the signal sent from the detection part 45, the control part 46 judges whether the laundry rises above a preset height. When the control part judges that the laundry rises beyond the preset height, the motor driving part 47 slows down the rotation speed or stops the washing cycle.

That is, the detection section 45 generates a detection signal, and transmits the signal to the control section 46 . The control part 46 judges whether the laundry rises above a preset height according to the signal transmitted from the detection part 45 . When the control part judges that the clothes rise above the preset height, the control part 46 controls the motor driving part 47 so that it slows down the rotation speed of the motor or stops the rotation of the motor, thereby preventing water from splashing.

FIG. 8 depicts the state when the laundry touches the long side of the net depicted in FIG. 6 .

In the state shown in FIG. 6, since the net 41 nets the laundry, the problem of splashing of the washing water does not occur.

However, in the state shown in FIG. 8 , the laundry is not caught by the net 41 and thus protrudes from the tub lid 5 . That is, because the laundry caught by the net 41 may protrude from the net 41 during the washing cycle and contact the long side of the net 41 during the water supply cycle.

In this case, the laundry 48 contacts the sensors 42 and 43 installed on the long side of the net 41, so a preset detection signal is transmitted to the control part. The control part controls the driving part according to the signal sent by the detection sensor, so that the rotational force of the washing machine is weakened, thereby preventing the water from splashing out. Also, the control part may stop the rotation of the rotary tub 3 in order for the user to rearrange the laundry so that it does not protrude from the tub cover 5 .

During this period, the inner surface of the net 41 is easily worn away by the frictional force with the clothes. That is, since the inner surface of the net 41 rubs against laundry during a washing cycle, it is worn out when the washing machine is used for a long time. When the inner surface of the net 41 is worn, it becomes rough, causing damage to clothes.

In order to prevent clothing and nets from being worn, the surface of the net 41 is preferably covered with a layer of metal material, using a smooth metal surface as a protective method. This protection can be a metal strip or a specially prepared metal material fitted on the net 41 .

fifth embodiment

This embodiment is the same as the fourth embodiment except that a structure for preventing the abrasion of the net and clothes is also provided.

Fig. 9 is a perspective view of a tub cover of a washing machine according to a fifth embodiment of the present invention. Fig. 10 is a sectional view along the line A-A in Fig. 9 .

Referring to FIGS. 9 and 10, a net 51 is formed on a part of the inner circumference of the bucket lid. Since the inner end of the net 51 is often in contact with clothing, the protective cover 60 for protecting the inner end of the net 51 covers the inner end of the net 51 .

The protective cover 60 snaps into the inner end 52 of the mesh 51 . That is, the protective cover 60 is caught in the inner end 52 of the net 51 when elastically deformed. Therefore, the protective cover 60 is preferably made of elastic material. The protective cover 60 can be attached to the inner end 52 by screws and hooks. In this case, however, the screws and hooks can make the appearance unsightly and allow damage to the clothes during the washing cycle, while spoiling the appearance. Accordingly, it is preferred that the protective cap 60 is attached to the inner end 52 by a snap fit.

In detail, the protective cover 60 includes: an upper fixing portion 61 for connecting with the upper end of the inner end 52, a connecting portion 62 for connecting with the lower end of the inner end 52, and a slightly curved connecting portion that can make the connecting portion 62 is easily inserted into the insertion end portion 63 at the bottom of the inner end 52 . The protective cover 60 is made of elastic material like elastic plastic, stainless steel, and elastic rubber.

When the protective cover 60 is made of elastic plastic and elastic rubber, it is easy to wear. In this case, a new elastic cover needs to be replaced. Therefore, it is best to use stainless steel as a protective cover.

In detail, the inner end 52 of the net 51 includes: a first claw 53 connected with the fixed portion 61, a second claw 54 connected with the connecting portion 62, and one formed near the first claw 53 to prevent The protective cover 60 is detached from the third claw 55 .

The process of attaching the protective cover 60 to the inner end 52 of the mesh 51 will be described below.

The fixing part 61 is connected with the first claw 53 first, and the connecting part 62 is connected with the second claw 54 by snap fit. At this time, since the insertion end portion 63 is slightly bent, the linking portion 62 is elastically deformed and attached to the second claw 53 . Also, the third claw 55 supports the fixing portion 61 so as not to be separated from the first claw 53 .

FIG. 11 is a perspective view of the protective cover shown in FIG. 9 .

Referring to FIG. 11 , a rounded fixing portion 61 is formed at the upper end portion of the protective cover 60 so as to be fixed at the upper edge of the inner end 52 of the net 51 . The elastically deformable connecting portion 62 is formed at the lower end portion of the protective cover 60 and thus can be fixed to the lower side of the inner end 52 of the net 51 . The insertion end portion 63 can be slightly bent so that the coupling portion 62 can be easily inserted into the lower portion of the inner end 52 . Also, when the protective cover 60 is inserted into the net 51, the insertion end portion 63 prevents scratches from occurring.

In the structure described above, foreign matter may accumulate between the protruding portions of the net 51 , especially between the first and third claws 53 and 55 . It is troublesome for the user to remove the accumulated foreign matter in the net 51 .

Sixth embodiment

Except for the structure of the inner end of the net, the sixth embodiment is identical to the fifth embodiment in many parts. That is, foreign matter is prevented from being accumulated by changing the structure of the inner end portion of the net.

Figure 12 is a cross-sectional view of the net, depicting a sixth embodiment according to the present invention, illustrating the securing of the protective cover to the inner end of the net.

Referring to FIG. 12 , the first hook 73 is formed on the upper portion of the inner end 72 of the net 71 , and the second hook 74 is formed on the lower portion of the inner end 72 of the net 71 . The protective cover 60 has the same structure as that of the fifth embodiment.

Next, the attachment operation of the protective cover 60 will be described. The first hook 73 is positioned such that a fixing portion is hooked to the first hook 73 , and then the attachment portion 62 is snapped onto the second hook 74 .

With the above structure, foreign matter is prevented from accumulating between the first claw (refer to numeral 53 in FIG. 10 ) and the third claw (refer to numeral 55 in FIG. 10 ). Also, by enlarging the fixed portion 61 to a predetermined size different from that of the fifth embodiment, the protective cover 60 can be prevented from being easily separated. Accordingly, the disadvantage of omitting the third claw 55 of the fifth embodiment is easily overcome.

According to the present invention as described above, since the net is formed on the lid, laundry does not protrude from the lid, thus preventing water from splashing during a water supply cycle and a washing cycle. Thus, any insignificant accidents caused by splashed water can be avoided.

Moreover, even when the clothes protrude from the bucket lid, the detection component detects this situation and controls the rotating speed of the driving motor, thereby preventing splashing of water.

And, because the protective cover prevents the net from being worn out, the clothes touching the net are not easily damaged. Moreover, each corner of the protective cover is slightly bent to prevent the clothes from being damaged.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention. Thus, the present invention covers the modifications and variations of this invention that come within the scope of the appended claims and their equivalents.

Claims (15)

1. a washing machine comprises: a shell; An outer bucket that is installed in the shell, contains washings; The rotary barrel that is installed in the outer bucket, optionally a rotation; One is rotated the impeller that is forced to current with generation in rotary barrel,

This washing machine is characterised in that it also comprises:

A bung that is formed on outer bucket top, when rotary barrel and/or impeller rotation, it is used for guiding washings to enter rotary barrel inside;

A net that extends to form inwards from the inner of bung; With

A motor that is used for transmitting power to rotary barrel and/or impeller.

2. according to the washing machine described in the claim 1, it is characterized in that also comprising an open gap that between the bung inner periphery and the net outside, limits.

3. according to the washing machine described in the claim 1, it is characterized in that a water supply hole be formed on net directly over.

4. according to the washing machine described in the claim 1, it is characterized in that further comprising an electrode sensor that is formed on the net inner end, be used for detecting the clothing that touches the net inner end.

5. according to the washing machine described in the claim 1, it is characterized in that further comprising an over cap that is used for catch net the inner.

6. according to the washing machine described in the claim 1, it is characterized in that further comprising a coating that is used for the catch net inner surface.

7. according to the washing machine described in the claim 4, it is characterized in that, also comprise: one be used for when contact with clothing when the electrode sensor, receive from the signal of electrode sensor and judge the control section that clothing rises.

8. according to the washing machine described in the claim 7, it is characterized in that control section only when receiving the detection signal that produces during to electrode sensor when contact with clothing, just judges the rising of clothing.

9. according to the washing machine described in the claim 7, it is characterized in that electrode sensor comprises pair of electrodes, have only and when clothing contacts two electrodes simultaneously, just detect electric current.

10. according to the washing machine described in the claim 5, it is characterized in that over cap made by elastomeric material.

11., it is characterized in that the inner of over cap and net flexibly links together according to the washing machine described in the claim 5.

12., it is characterized in that over cap comprises according to the washing machine described in the claim 5:

One is shaped so that insert the standing part of the inner upper end of net from the over cap upper bend;

One is formed on the end portion of over cap so that insert the linking portion of the inner bottom of net; With

One is shaped so that linking portion easily inserts the insertion end of the inner of net from over cap bottom slight bending.

13., it is characterized in that over cap is snapped on the net according to the washing machine described in the claim 5.

14., it is characterized in that the inner of netting is provided with upper and lower hook in the place that over cap hooks with it according to the washing machine described in the claim 5.

15. according to the washing machine described in the claim 5, it is characterized in that the inner of netting is provided with two adjacent hooks on its one or more limits, to support the end that over cap inserts.

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