KR20010105817A - The drain device for washing machine - Google Patents

Abstract

A phase detector biased in a manner to alleviate the mismatch between the biasing current sources and the phase detector core bias currents. The bias setting resistors are coupled together at a common node that forms the negative input of a differential feedback amplifier. The positive input to the amplifier is referenced to a reference voltage, and the output of the amplifier controls the biasing current sources. The feedback amplifier forces the average voltage at the current source outputs to approximately match the reference voltage applied to its positive input. Thus the average bias current from the bias current sources is forced to track the average bias currents of the phase detector core.

Description

The drain device for washing machine

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine for washing clothes and the like, and more particularly, to a drainage device of a washing machine that can easily remove residual bubbles and easily install a drain hose by forming a concave drain passage on the bottom of a water tank. It is about.

1 is an internal configuration of a washing machine equipped with a drainage device according to the prior art.

The inclined washing machine may be positioned at an angle with respect to the direction in which gravity acts on the water storage tank 11 and the washing tank 15 to generate complex water flow in the washing tank 15 to improve washing power of the laundry, and the front side may be relatively The washing machine is configured so that the user can easily put in and take out the laundry.

The washing machine inclined as described above is positioned in an inclined case 1 and an inclined angle (θ) with respect to the vertical direction in the case 1, and the washing tank 11 and the washing tank in which the washing of the laundry is performed therein. 15) and a plurality of hanger members 20 for supporting the reservoir 11 in an inclined state in the case 1.

The case (1) has a door (5) is installed to put or remove the laundry on the upper portion, the front and rear projections (2) (3) to secure the space according to the storage tank 11 is inclined Each is formed.

The reservoir 11 is a tub that is supported in the case 1 through the hook member 20 to store the washing water therein, and the laundry tub 15 is embedded in the reservoir 11 to wash the laundry. Multiple holes are formed to allow water to pass through.

In addition, a driving device 30 for rotationally driving the washing tank 15 or the pulsator 16 is installed at a lower portion of the water storage tank 11, and drainage is performed to discharge the washing water and the rinsing water out of the case 1. The device 40 is installed.

In particular, since the reservoir 11 is inclined toward the front of the case 1, the drainage device 40 has a drainage hole 12 formed at the lowest side in order to drain the washing water or the rinsing water.

In addition, since the drain hole 12 is formed at the front bottom surface of the water reservoir 11, the drain hose 41 connected to the case 1 from the drain hole 12 is also connected to the front or side of the case 1. It is configured to discharge the wash water, and a drain valve 45 which is a drainage operation device is installed on the drain hose 41.

However, the inclined washing machine having the drainage device of the prior art as described above, when the drain hose 41 is installed to come out from the front of the case 1, when the user adds or removes the laundry, the drain hose is stepped on or wrinkled to drain There is a problem that the hose can be broken, there is a problem that the user is difficult to approach the washing machine when the wash water is discharged through the drain hose (41).

In addition, since the space between the bottom surface of the reservoir 11 and the bottom surface of the case 1 is narrow in the state in which the reservoir 11 is inclined forward, the drain valve 45, the drain pump, etc. There is a problem that is difficult to secure the installation space of the.

Of course, in order to ensure sufficient space between the bottom of the reservoir 11 and the bottom surface of the case 1, the reservoir 11 may be installed high, but at this time, the volume of the case 1 becomes large as well as the reservoir 11 Since the height of) increases, there is a problem that the storage of the laundry becomes uncomfortable.

On the other hand, the drain hose 41 may be connected in the rear direction of the case 1, but in this case, not only the length of the drain hose 41 is long, but also the arrangement and assembly of the drain hose 41 and the drainage operation device are difficult. Losing problems occur.

In particular, a conventional washing machine including an inclined washing machine as described above has a flat structure in which the bottom surface of the water storage tank 11 is configured to drain through the drain hole 12 so that the washing tank during the washing water discharge operation ( Due to the inertial force of 15), there is a problem in that some bubbles or seams are continuously discharged without being discharged, and thus there is a problem in that there is a limit in improving the washing power of laundry.

The present invention has been made to solve the above problems, by forming a groove-shaped drainage space on the bottom of the water tank of the washing machine that can easily discharge the residual foam or seams during the drainage operation to improve the washing power of the laundry The purpose is to provide a drainage device.

In addition, the present invention forms a drainage space from the lowest front to the rear in the inclined washing machine, by installing a drainage hose and a drainage operation device at the end of the drainage space is configured to be drained in the rear direction of the case drainage device Another object of the present invention is to provide a drainage device of a washing machine that can easily assemble and of course, solve a user's discomfort when drained to the front of the case.

In addition, the present invention has another object to provide a drainage device of the washing machine that can be configured to drain in the rear direction of the case to share the case and the drainage structure of a conventional upright washing machine.

1 is an internal configuration of a washing machine equipped with a drainage device of the prior art,

2 is an internal configuration diagram showing a washing machine of the first embodiment according to the present invention;

3 is a cutaway perspective view taken along the line A-A of FIG.

4 is a cross-sectional view taken along the line B-B in FIG. 3;

5 is a bottom perspective view of a reservoir according to a first embodiment of the present invention;

6 is an internal configuration diagram showing a washing machine of a second embodiment according to the present invention;

7 is an internal configuration diagram showing a washing machine of a third embodiment according to the present invention;

8 is a cross-sectional view taken along the line C-C in FIG. 7.

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

50: case 55: back cover

57: drive device 59: hook member

61: reservoir 62: drainage space

62a: drain port 65: washing tank

70: drain hose 75: drain valve

81, 91: reservoir 82, 92: drainage space

82a, 92a: drains 83, 93: washing tank

85, 95: drain hose 86, 96: drain valve

The drainage device of the washing machine according to the present invention for realizing the above object is a case for forming an outer shell, a reservoir installed in the case to store the wash water, and a washing tank rotatably installed in the reservoir to wash the laundry. In the washing machine including, the bottom surface of the reservoir is formed with a groove-shaped drain space formed lower than the bottom surface, the drainage space is formed with a drain outlet for washing water discharged; The drainage port is provided with a drain hose connected to the outside of the case, it is possible to be characterized in that the drainage operation means for discharging the wash water is installed on the drain hose.

In addition, the water tank and the washing tank are installed to be inclined by a predetermined angle with respect to the vertical direction in which gravity acts in the case; The drainage space may be formed by starting from the lowest portion of the inclined bottom surface and gradually increasing toward the rear.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

2 to 5 are views of the first embodiment according to the present invention, in which the drainage device of the present invention is applied to an inclined washing machine.

2 is an internal configuration of the first embodiment according to the present invention, the inclined washing machine according to the present invention is positioned inclined by a predetermined angle (θ) with respect to the vertical direction in which gravity acts in the case 50 to wash the laundry. The reservoir 61 and the washing tank 65, the plurality of hook members 59 for allowing the reservoir 61 to be inclined in the case 50, and the lower side of the reservoir 61 It is composed of a drive device 57 installed to drive the washing tank 65 or the pulsator 66 in rotation.

The case 50 is formed in a hexahedron shape, the door 52 is installed on the upper side, and the back cover 55 having a convex shape rearward to prevent interference with the rear portion of the reservoir 61 is provided on the rear side. Is installed.

The reservoir 61 is formed in a cylindrical shape and suspended in the case 50 in a state inclined by the hook member 59 to store the wash water, and the washing tank 65 is rotatable in the reservoir 61. It is installed to be configured to wash the laundry.

In particular, the bottom of the reservoir 61 is formed with a groove-shaped drain space 62 is formed lower than the inclined bottom surface, the drain port 62c is formed at the end of the drain space 62 for the washing water discharged.

In addition, a drain hose 70 connected to the case 50 is installed in the drain port 62a, and a drain valve 75 which is a drain operation means for discharging the wash water to the outside on the drain hose 70. ) Or a drain pump is installed.

Here, the drain port 62a is formed at the lowest portion of the drain space 62, and the drain hose 70 is discharged to the outside through the rear to discharge the washing water in the rear direction of the case 50. Connected.

3 to 5 are detailed views of the reservoir 61, FIG. 3 is a cutaway perspective view of the AA line in FIG. 2, FIG. 4 is a cross-sectional view of the BB line in FIG. 3, and FIG. It is the back direction perspective view of a reservoir.

3 to 5, the drainage space 62 formed in the reservoir 61 is formed so as to start at the lowest front of the inclined bottom surface and gradually deeper toward the rear, the shape of which is arc ( Iii) consists of grooves in the shape.

That is, since the reservoir 61 is inclined forward with the washing tank 65, the lowest portion of the bottom surface of the reservoir 61 is the front side. Therefore, in order to prevent the residual water from accumulating in the reservoir 61, the drainage space portion 62 starts from the lowest front portion, and the drainage space portion 62 rotates in the circumferential direction such as the rotational direction of the washing tank 65. It is connected to the side of the reservoir 61 in the shape recessed by each.

As shown in FIG. 3, the drainage space portion 62 has an arc angle from the start portion 62c to the end surface 62c set between 0 ° and 110 ° so that the drainage space portion 62 is connected to the side surface at the front of the reservoir 61. Preferably, it may be set in the range of 0 ° to 180 ° so as to be connected from the front portion to the rear portion of the reservoir 61 as necessary.

The bottom surface 62b of the drainage space portion 62 is formed in a horizontal plane from the start portion 62c or gradually lower than the horizontal plane so that the washing water is naturally drained toward the drain hole 62a as shown in FIG. 4.

That is, the angle α between the bottom surface 62b of the drainage space portion 62 and the bottom surface 61a of the reservoir 61 is equal to the angle θ in which the reservoir 61 is inclined with respect to the vertical direction. Or larger, thereby forming natural drainage.

In addition, the drainage space 62 is such that the end surface 62d connected from the end of the bottom surface 62b to the bottom surface 61a of the reservoir 61 is within a range of ± 30 ° with respect to the vertical direction in which gravity acts. It is preferably formed.

The end surface 62d of the drainage space 62 as described above is easily discharged through the drain port 62a formed at the lowest position by catching bubbles or seams that rotate due to inertia when the washing tank 65 rotates. It works.

At this time, the rotation direction of the washing tub 65 in the dehydration operation is preferably set in the same direction as the end surface 62d direction at the start portion 62c of the drain space 62.

On the other hand, reference numeral 61b in Figs. 3 to 5 is a hook portion that is caught on the lower side of the hook member 59 in Fig. 2, 61c are ribs for reinforcing the strength of the bottom surface of the reservoir 61.

Referring to the operation of the embodiment according to the present invention configured as described above are as follows.

Since the drainage space portion 62 of the present invention is formed to gradually deepen at the lowest front portion of the reservoir 61, the drainage water 62 can discharge the wash water without remaining water in the reservoir 61 when draining the wash water and the rinsing water. do.

In addition, since the drain space 62 is formed at the bottom of the reservoir 61 in the circumferential direction, it is possible to minimize the flow resistance of the washing water rotating together with the washing tank 65, in particular the end of the drain space 62 Since the portion 62d is formed deeply close to the vertical plane, bubbles, seams, and the like remaining on the bottom surface of the water storage tank 61 in the dehydration operation can be easily discharged.

That is, the operation of draining the wash water and the rinsing water is performed by opening the drain valve 75. When the drain valve 75 is opened, most of the wash water stored in the water storage tank 61 is disposed in the drainage space 62 and the drain hole. 62a, natural drainage through the drain hose 70. FIG. After the dehydration operation is performed while the washing tank 65 rotates at a high speed, bubbles and foreign substances remaining on the bottom of the water storage tank 61 are dropped into the drain space 62 while moving in the circumferential direction of the bottom surface 61a by centrifugal force. .

In this way, bubbles and foreign matter dropped in the drainage space 62 are discharged to the outside through the drain hose 70 together with the dewatered wash water, so that when the rinsing operation is repeated again, it is possible to provide a cleaner rinsing condition. It is possible to improve the washing power of the laundry.

In addition, since the drain port 62a of the drain space 62 is formed on the side surface of the water reservoir 61 instead of the front portion of the water reservoir 61, the water reservoir 61 has a sufficient space for installing the drain hose 70 and the drain valve 75. ) It is easy to arrange and assemble the parts installed at the bottom part, and it is possible to easily connect the drain hose 70 to the rear of the case 50 so that it occurs when the washing water is discharged to the front of the case as in the prior art. It is possible to overcome the disadvantages.

6 is a view of a second embodiment according to the present invention, in which the drainage apparatus of the present invention is applied to an upright washing machine.

Referring to FIG. 6, the water storage tank 81 and the washing tank 83 are positioned in the washing machine case 80 in a vertical direction, and the drainage space 82 as the above-described embodiment is disposed on the bottom surface of the water storage tank 81. Is formed.

That is, the drainage space 82 is formed at a predetermined rotational angle in an arc shape on the outer side of the bottom surface of the reservoir 81, and the drainage port 82a is formed at the lowest portion of the drainage space 82.

In particular, since the bottom surface of the reservoir 81 is located on a substantially horizontal plane, it is preferable that the drainage space 82 is formed to be connected to the rear side from one side of the reservoir 81.

In addition, a drain hose 85 is connected to the drain port 82a, and a drain valve 86 is installed at the drain hose 85.

In the washing machine of the second embodiment according to the present invention configured as described above, the drainage space 82 is formed at the bottom of the reservoir 81 so that bubbles and seams remaining on the bottom surface of the reservoir 81 during drainage and dehydration operation are performed. It can be easily discharged to improve the washing ability of the washing machine.

7 and 8 are views of a third embodiment according to the present invention, in which a drainage apparatus of the present invention is applied to a drum type washing machine.

Typically, the drum washing machine is implemented in a range in which the rotating shaft of the washing tub 93 installed in the case 90 is parallel to the ground or within 45 degrees from the parallel, so that the washing operation can be performed in a substantially horizontal direction. .

In such a drum washing machine, a washing tank 93 and a water storage tank 91 are positioned in a horizontal direction in the case 90, and a drainage space 92 protruding downward is formed in a lower portion of the water storage tank 91.

A drain hole 92a through which the drain hose 95 is connected is formed on the bottom surface of the drain space 92, and the drain hose 95 is provided with a drain valve 96 which is a drain operation means.

As the drainage device of the washing machine of the present invention as described above is formed in the bottom of the water reservoir, the groove-shaped drainage space for discharging the washing water can be easily discharged through the drainage space during the drainage operation. Therefore, there is an advantage that can improve the washing power of the laundry.

In addition, the present invention is because the drainage space is connected from the lowest front to the rear direction in the inclined washing machine is connected so that the drain hose is connected to the rear portion of the case from the side of the reservoir, the installation space of the drainage device is easy to assemble parts Of course, there is an advantage that can solve the inconvenience of the user occurs when drained to the front of the case.

In addition, since the present invention can be configured to be drained in the direction of the back of the case in the inclined washing machine there is an advantage that the case and drainage structure of a general upright washing machine can be shared.

Claims (6)

A washing machine including a case forming an outer portion, a water storage tank installed in the case to store wash water, and a washing tank rotatably installed in the water storage tank to wash laundry, The bottom surface of the reservoir is formed with a groove-shaped drainage space formed lower than the bottom surface, the drainage space is formed with a drain hole for discharging the wash water; The drainage port is installed in the drainage port is connected to the outside of the case, the drainage device of the washing machine, characterized in that the drainage operation means for discharging the wash water is installed on the drainage hose. The method of claim 1, The water tank and the washing tank are installed to be inclined by a predetermined angle with respect to the vertical direction in which gravity acts in the case; The drainage space is a drainage device of the washing machine, characterized in that formed from the lowest portion of the inclined bottom surface gradually deeper toward the rear. The method according to claim 1 or 2, The drainage space of the washing machine, characterized in that formed in an arc shape on the bottom surface of the reservoir. The method of claim 3, wherein The bottom surface of the drainage space is a drainage device of the washing machine, characterized in that deeper at least below the horizontal plane from the start position to facilitate the discharge of the wash water. The method of claim 3, wherein The drainage port is a drainage device of the washing machine, characterized in that formed on the lowest bottom surface of the drainage space. The method of claim 3, wherein The drainage space drainage device of the washing machine, characterized in that the surface connected to the bottom surface of the reservoir at the end of the bottom surface is within the range of ± 30 ° with respect to the vertical direction in which gravity acts.