KR20130037412A - Water exhaust apparatus for remainder of washingmachine - Google Patents

Abstract

PURPOSE: Dewatering apparatus of a drum washing machine is provided to reduce drain time by forcibly injecting air into a tub and to prevent mold growth by removing residual water in the tub. CONSTITUTION: Dewatering apparatus of a drum washing machine includes a tub(2) and an air inlet part(100). The air inlet part is prepared to forcibly inject air into the tub. The air inlet part includes an inlet(110), a shaft(120), an air-blowing component(130), and a rotary operation part(200). The inlet guides air injected into the tub. The shaft is rotatably supported at the tub. The air-blowing component is installed to be fixed to one side of the shaft. The rotary operation part forcibly rotates the shaft. The rotary operation part includes a rotation component(210), an operation motor(220), and a first connection component(230). The rotation component is connected to a drum(4) in the tub. So, if the rotation component is rotated, the drum is rotated. The first connection component connects the rotation component and the shaft in order for the shaft to be rotated in the same direction as the rotation component.

Description

Drum washing machine dewatering device {WATER EXHAUST APPARATUS FOR REMAINDER OF WASHINGMACHINE}

The present invention relates to a dewatering device of a drum washing machine, and more particularly, by forcibly injecting external air into the tub to reduce the drainage (dehydration) time, and to remove the residual water in the tub to eliminate the mold The dehydration apparatus of the drum washing machine which can be prevented.

In general, the drum washing machine includes a tub in which laundry water is stored and a drum in which laundry is stored.

The tub is supported by the damper. Such a damper allows the tub to be installed inside the outer case while supporting the load and vibration applied to the tub.

The drum is rotated by a motor inside the tub. The laundry is inserted into the drum and moved upwards as the drum rotates and then falls.

Such a drum washing machine uses a small amount of washing water and causes friction as the laundry falls, causing the effect of scrubbing the laundry.

On the other hand, the drum washing machine dehydrates the laundry by using the centrifugal force generated by rotating the drum at high speed. That is, a plurality of holes are formed on the drum, and water inside the drum is moved to the tub outside the drum by the centrifugal force generated as the drum rotates. The wash water discharged to the outside of the drum is discharged to the outside through a hose connected to the discharge hole and the discharge hole formed in the lower portion of the tub. In this case, when the pump is provided in the hose, when the predetermined washing water is collected, the pump is driven to discharge the washing water to the outside.

The dehydration facility of the drum washing machine related to this has been proposed in Korean Patent No. 10-0778713 (name of the invention: a dehydration detection device and a detection method of a washing machine).

Conventional drum washing machine has a problem that the discharge time of the washing water is delayed as it is naturally discharged while the laundry water forcibly discharged from the rotating drum is temporarily discharged inside the tub.

In addition, the conventional drum washing machine causes contamination of the tub as it remains inside the drum due to the natural discharge of the wash water, and thus, there is a problem that bacteria or mold grow on the inside of the tub and the outer surface of the drum.

Therefore, there is a need to improve this.

The present invention has been made to improve the above problems, it is possible to reduce the drainage (dehydration) time by forcibly injecting external air into the tub, and to prevent the mold of the mold by eliminating the residual water (tub) in the tub It is an object of the present invention to provide a dewatering device for a drum washing machine.

In order to achieve the above object, the present invention provides a dewatering device of a drum washing machine comprising a tub and an air injection unit for forcibly injecting external air into the tub.

The air inlet, the inlet for injecting external air into the tub, a shaft rotatably supported on the tub, a blower member fixed to the shaft to blow the outside air to the inlet side of the inlet, and the shaft It characterized in that it comprises a rotary operation unit for rotating.

In one example, the rotary operation unit, a rotating member rotatably provided in the tub, an operating motor connected to the tub and connected to the rotating member to rotate the rotating member when driven, and in the same direction as the rotating member And a first connection member connecting the rotation member and the shaft to rotate.

As another example, the rotation operation unit may include a drive motor connected to the tub, and a second connection member connecting the drive motor and the shaft to guide the rotation of the shaft when the drive motor is driven.

The inlet is characterized in that for forming an expansion pipe in the inlet to the outside air.

The shaft is provided with a bearing member on the circumferential surface, the bearing member is characterized in that the support is fixed to the tub outer surface by a mounting bracket.

The dewatering device of the drum washing machine according to the present invention can reduce the drainage time by forcibly injecting external air into the tub, and has the effect of preventing the mold or bacteria inhabit by removing the residual water in the tub.

1 is a perspective view of a drum washing machine having a dewatering device according to a first embodiment of the present invention.
2 is an exploded perspective view of the dehydration apparatus according to the first embodiment of the present invention.
Figure 3 is a cross-sectional view showing the inside of the drum washing machine having a dehydration device according to a first embodiment of the present invention.
4 is a perspective view of a drum washing machine having a dewatering device according to a second embodiment of the present invention.
5 is an exploded perspective view of the dehydration apparatus according to the second embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a drum washing machine dewatering apparatus according to the present invention. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

1 is a perspective view of a drum washing machine having a dewatering device according to a first embodiment of the present invention, Figure 2 is an exploded perspective view of a dewatering device according to a first embodiment of the present invention, Figure 3 is a first embodiment of the present invention Sectional drawing which shows the inside of the drum washing machine provided with the dehydration apparatus which concerns on the example.

Figure 4 is a perspective view of a drum washing machine having a dewatering device according to a second embodiment of the present invention, Figure 5 is an exploded perspective view of the dewatering device according to a second embodiment of the present invention.

1 to 3, the dewatering apparatus of the drum washing machine according to the first embodiment of the present invention includes a tub 2 and an air injection unit 100.

The tub 2 is installed inside a cabinet (not shown) which forms the outline of the drum washing machine. In this case, the tub 2 may be deformed into various shapes and connected to the inside of the cabinet by various methods.

In addition, the tub 2 is provided inside the drum 4 so as to be rotatable, and the drum 4 passes through the plurality of discharge holes 5 in the circumferential surface.

And, the tub 2 is provided with a drain port 3 to discharge the washing water therein intermittently. Therefore, when the drum washing machine is in the dehydration mode or the drainage mode after rinsing, the washing water stored inside the tub 2 is drained through the drain port 3. In addition, the washing water inside the drum 4 is discharged through the drain hole 3 after moving into the tub 2 through the discharge hole (5).

Of course, when the drum washing machine is in the washing mode or the rinsing mode, the drain hole 3 of the tub 2 is automatically blocked. Although not shown, the drain 3 is preferably provided with a valve to control the discharge of the wash water.

On the other hand, when discharging the wash water, the tub (2) to reduce the discharge time of the wash water by forcibly injecting air into the inside.

Thus, the air injection unit 100 is provided to forcibly inject external air into the tub (2).

The air injection unit 100 includes an inlet 110, a shaft 120, a blowing member 130, and a rotation operation unit 200.

At this time, the air injection unit 100 is provided on the outer peripheral surface of the tub (2). In particular, in order to improve the discharge efficiency of the wash water, the drain port 3 is formed on the lower side of the tub 2, the air injection portion 100 is preferably provided on the upper side of the tub (2). Of course, the formation position of the air injection unit 100 with respect to the tub 2 is not limited.

Inlet 110 serves to guide the outside air injected into the tub (2). That is, the tub 2 is formed to open in and out through the inlet 110. Here, the inlet 110 may have a hole shape that is perforated in the circumferential surface of the tub 2, but is preferably formed in a nozzle type that protrudes out of the tub 2. This is for guiding the outside air blown to the inside of the tub 2 as much as possible so that the inlet 110 faces the blowing direction.

At this time, the inlet 110 may be a bellows shape so that the direction can be easily set according to the blowing direction of the outside air, but may be variously applied. In addition, the inlet 110 may be detachably provided at the tub 2, or may be integrally formed at the tub 2. The inlet 110 is provided above the tub 2.

In addition, the inlet 110 preferably forms an inlet through which the external air is introduced into the expansion unit 112 so that a large amount of external air can be introduced therein. That is, the inlet 110 forms the diameter of the expansion portion 112 corresponding to the outside air inlet side wider than other portions.

The shaft 120 is rotatably supported by the tub 2. The shaft 120 may be rotatably installed on the tub 2 by various methods. For example, the shaft 120 includes a bearing member 150 on a circumferential surface, and the bearing member 150 is supported and fixed to the upper surface of the tub 2 by the mounting bracket 160. That is, the shaft 120 is axially inserted into the bearing member 150. At this time, the bearing member 150 is preferably a ball bearing. And, the mounting bracket 160 serves to fix the bearing member 150 to the upper side of the tub (2). Mounting bracket 160 may be provided detachably to the bearing member 150, it is preferably formed integrally with the bearing member 150. In particular, the mounting bracket 160 is bound to the upper side of the tub 2 by various methods such as bolting. Of course, the mounting bracket 160 can be modified in various materials and various shapes.

In addition, the blowing member 130 is fixedly installed on one side of the shaft (120). Thus, when the shaft 120 is rotated, the blowing member 130 is rotated and serves to concentrate the flow of external air in the inlet 110 direction. Here, the blowing member 130 is preferably a fan (fan). Of course, the blowing member 130 may be applied in various shapes.

In addition, the rotation operation unit 200 serves to forcibly rotate the shaft 120.

In one example, the rotary operation unit 200 includes a rotary member 210, the operating motor 220 and the first connection member 230.

The rotating member 210 is rotatably provided at the rear side of the tub 2. 'Back side' is the opposite side of the front side of the tub (2) for putting in or taking out the laundry. Of course, the rotating member 210 may be rotatably provided at various positions of the tub (2).

In particular, the rotating member 210 is connected to the drum (4) inside the tub (2). Thus, when the rotating member 210 is rotated, the drum 4 is rotated. Rotating member 210 is preferably a pulley (pulley), it can be variously applied, such as gear teeth.

And, the operation motor 220 is fixed to one side of the tub (2), and serves to transmit the rotational force to the rotating member (210). That is, the operation motor 220 and the rotating member 210 is connected to the transmission member 222 for transmitting power. For convenience, the rotating member 210 is shown as a pulley, the transmission member 222 is shown as a belt. Of course, the rotating member 210 and the transmission member 222 is applicable to a variety of mechanical power transmission elements.

The first connection member 230 serves to connect the rotating member 210 and the shaft 120 to rotate in the same direction as the rotating member 210.

In this case, the first connection member 230 includes a first dependent member 232 and a first power transmission member 234.

The first slave member 232 is provided on the shaft 120, and the first power transmission member 234 serves to connect the rotating member 210 and the first slave member 232.

For convenience, the first slave member 232 is shown as a pulley fixed to the shaft 120, the first power transmission member 234 is wound around the rotary member 210 and the first slave member 232 to the rotary member ( 210 and the first slave member 232 are shown as a belt to guide rotation together. Of course, the first slave member 232 and the first power transmission member 234 can be applied to various mechanical power transmission elements.

In particular, the rotating member 210 and the operating motor 220 is provided in the tub 2 to rotate the drum 4 inside the tub (2). Accordingly, the rotary operation unit 200 can be simply applied to the structure according to the configuration to rotate the blowing member 130 by using the existing power (rotational power).

3 schematically shows a configuration of the rotary operation unit 200.

Referring to the operation of the dehydrating device of the drum washing machine according to the first embodiment of the present invention having the structure as described above are as follows.

When the user switches the drum washing machine to the dehydration mode, the operating motor 220 is driven to rotate the rotating member 210. Rotating member 210 is to rotate the drum (4) together. For this reason, the wash water inside the tub 2 and the drum 4 is discharged through the drain port 3.

At this time, the rotating member 210 is connected to the shaft 120 to rotate the shaft 120 and the blowing member 130 together.

Accordingly, the outside air is introduced into the inlet 110 due to the rotation of the blower member 130 and then supplied into the tub 2. Thus, by increasing the pressure inside the tub 2 and the drum 4, the outside air introduced into the tub 2, the wash water reduces the time discharged through the drain port (3).

In particular, when the drum 4 is in the washing mode or the rinsing mode, as the rotating member 210 is rotated, the blowing member 130 is rotated. At this time, the wash water is not discharged to the outside of the tub (2). Therefore, the external air is continuously introduced into the tub 2 and the drum 4, so that the internal pressure of the tub 2 and the drum 4 can be maintained at or above atmospheric pressure.

As a result, in the dehydration mode of the washing machine, if the outside air is supplied into the tub 2 that is at or above atmospheric pressure or at atmospheric pressure, the washing water inside the tub 2 is discharged as soon as possible due to an increase in pressure caused by the outside air.

4 and 5, the dewatering apparatus of the drum washing machine according to the second embodiment of the present invention includes a tub 2 and an air injection unit 100.

In addition, the air injection unit 100 includes an inlet 110, a shaft 120, a blowing member 130, and a rotation operation unit 200.

Here, the tub 2 is replaced with the above. In addition, the inlet 110, the shaft 120, and the blowing member 130 of the air injection unit 100 are replaced with those described above.

The rotary actuator 200 includes a drive motor 250 and a second connection member 260.

The drive motor 250 is connected to the tub 2 and fixed. For example, the drive motor 250 is detachably fixed to the outer surface of the tub 2 by the mounting bracket 252. The installation bracket 252 may be formed in various shapes and may be integrally formed with or separated from the driving motor 250. In addition, the installation bracket 252 is detachably fixed to the tub 2 by various methods such as bolting.

In addition, the second connection member 260 serves to connect the drive motor 250 and the shaft 120 to guide the rotation of the shaft 120 when the drive motor 250 is driven.

In this case, the second connection member 260 includes a second dependent member 262 and a second power transmission member 264.

The second dependent member 262 is provided on the shaft 120 and the driving motor 250. The second power transmission member 264 connects the drive motor 250 and the shaft 120. That is, the second power transmission member 264 serves to connect the second dependent member 262 of the drive motor 250 and the second dependent member 262 of the shaft 120.

For convenience, the second slave member 262 is illustrated as a pulley fixed to the shaft 120 and the driving motor 250, and the second power transfer member 264 winds up a pair of first slave members 232. The first slave member 232 is shown as a belt for simultaneously rotating the guide. Of course, the second slave member 262 and the second power transmission member 264 can be applied to various mechanical power transmission elements.

In particular, since the rotary operation unit 200 is provided separately from the driving source for rotating the drum 4, the rotary operation unit 200 can be operated only when the wash water is drained to forcibly inject external air into the tub 2, thereby reducing power consumption. have.

Of course, the blowing member 130 may be directly connected to the drive motor 250. At this time, the drive motor 250 is fixedly installed on the tub 2 by the mounting bracket 252.

The reference numerals not described are replaced with those described above.

Referring to the operation of the dehydrating device of the drum washing machine according to the second embodiment of the present invention having the structure as described above are as follows.

When the drum washing machine is in the state of draining the wash water, the operating motor 220 is driven to rotate the rotating member 210. Rotating member 210 is to rotate the drum (4) together. For this reason, the wash water inside the tub 2 and the drum 4 is discharged through the drain port 3.

At this time, the driving motor 250 is automatically controlled and driven or set by the user. Then, the shaft 120 and the blowing member 130 are rotated together.

Accordingly, the outside air is introduced into the inlet 110 due to the rotation of the blower member 130 and then supplied into the tub 2. Thus, by increasing the pressure inside the tub 2 and the drum 4, the outside air introduced into the tub 2, the wash water reduces the time discharged through the drain port (3).

In particular, the 'washing water drainage state' refers to a washing water drainage state immediately after rinsing in a dehydration mode or a rinse mode.

The driving motor 250 is set to be inoperative in the washing mode or the rinsing mode of the washing machine, so that the driving motor 250 is driven separately from the operating motor 220 for rotating the drum 4, thereby reducing power consumption.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

Accordingly, the true scope of protection of the present invention should be defined by the following claims.

2: tub 4: drum
100: air injection unit 110: inlet
112: expansion pipe 120: shaft
130: blowing member 150: bearing member
160: mounting bracket 210: rotating member
220: operating motor 222: transmission member
230: first connecting member 232: first dependent member
234: first power transmission member 250: drive motor
252: mounting bracket 260: second connecting member
262: second slave member 264: second power transmission member

Claims (6)

A tub; And
Dewatering device of a drum washing machine comprising an air injection unit for forcibly injecting external air into the tub.
The method of claim 1, wherein the air injection unit,
An inlet guiding injection of external air into the tub;
A shaft rotatably supported by the tub;
A blower member fixed to the shaft to blow external air to the inlet side of the inlet; And
Dewatering device of a drum washing machine comprising a rotary operation unit for rotating the shaft.
The method of claim 2, wherein the rotary operation unit,
A rotating member rotatably provided at the tub;
An operating motor connected to the tub and connected to the rotating member to rotate the rotating member when driven; And
And a first connecting member connecting the rotating member and the shaft to be rotated in the same direction as the rotating member.
The method of claim 2, wherein the rotary operation unit,
A drive motor connected to the tub; And
And a second connection member connecting the drive motor and the shaft to guide the shaft in rotation when the drive motor is driven.
The method according to any one of claims 2 to 4,
The inlet is a dewatering device of the drum washing machine, characterized in that to form an expansion pipe at the inlet to the outside air.
The method according to any one of claims 2 to 4,
The shaft has a bearing member on a circumferential surface;
The bearing member is dewatering device of the drum washing machine, characterized in that the support bracket is fixed to the tub outer surface by a mounting bracket.

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