KR100263448B1 - Washing machine - Google Patents

Abstract

The present invention provides a casing, an outer tub installed in the casing, a spin basket installed in the outer tub to receive laundry, and a wash water provided in a side wall of the spin basket, the washing water in the spin basket being a lower region of the spin basket. A washing machine having at least one tubular washing water circulation passage guiding upward from the back to the spin basket, the washing machine being provided on a sidewall of the spin basket to form a portion of the washing water circulation passage and opening a filter at least in one region. Filter casing is formed; And a perforated plate filter provided at the filter opening of the filter casing. As a result, the deformation of the filter generated when the filter of the fabric is installed in the filter casing in the conventional washing machine can be suppressed, and the flow of the wash water returned to the spin basket through the filter can be smoothly flown.

Description

washer

The present invention relates to a washing machine, and more particularly, it is possible to suppress the deformation of the filter generated when installing the filter of the fabric in the filter casing in the conventional washing machine, the washing water returned to the spin basket through the filter It is about a washing machine to make a smooth flow.

A general washing machine has a substantially rectangular casing and a top cover coupled to an upper end of the casing. An outer tub fixed by a suspension device is installed in the casing, and a spin basket for accommodating laundry is provided in the outer tub.

4 is a partially enlarged perspective view of a filter area of a conventional washing machine. As shown in the figure, a plurality of protrusions 114 and the dehydration hole 123 is formed on the inner surface of the spin basket 113. On the sidewall of the spin basket 113, a washing water circulation passage 125 is formed in which the washing water from the lower portion of the spin basket 113 moves upward and circulates back into the spin basket 113, and the washing water circulation passage 125 is formed. One side of the opening is formed (not shown) to communicate with the spin basket 113. The filter fixing part 150 is provided in this opening part, and the filter fixing part 150 is provided with the bag-shaped filter 131 formed from the fabric.

The lower portion of the spin basket 113 is provided with a disk-shaped pulsator 115 that generates washing water flow in the spin basket 113. The upper surface of the pulsator 115 is formed with a pulsator guide 117 protruding from the center and a plurality of wings 119 protruding radially from the axis of the pulsator 115. The plate surface of the pulsator 115 is formed with a plurality of washing water outlet holes 121 for flowing the wash water in the spin basket 113 to the lower portion of the pulsator 115, the lower surface of the pulsator 115 The plurality of blades 120 protrude radially from the axis of the pulsator 115.

With this configuration, when laundry is stored in the spin basket 113 and then the washing machine is operated, washing water flow is formed in the spin basket 113 by the forward and reverse rotation of the pulsator 115. The laundry flows by the washing water flow, and comes into contact with the protrusions 114 of the spin basket 113 to be washed. At this time, a part of the washing water is discharged to the lower portion of the pulsator 115 through the washing water outlet hole 121 formed in the plate surface of the pulsator 115, the blade 120 that rotates integrally with the pulsator 115 It is moved upward along the washing water circulation passage 125 installed on the side wall of the spin basket (113). The washing water moving upwardly includes foreign matters such as fluff generated by laundry being flowed by the washing water flow in the spin basket 113 and contacting the protrusion 114 of the spin basket 113. The foreign matter is contained in the wash water and flows and is collected by the bag-shaped filter 131 provided on the side wall of the spin basket 113 when it is returned to the spin basket 113 through the wash water circulation passage 125.

However, in such a conventional washing machine, not only the filter formed of the fabric can be deformed when the filter is installed in the filter fixing part, but also when the foreign matter is collected from the filter, the foreign matter remains on the filter surface of the fabric over time. As a result there is a problem that can suppress the flow of the wash water returned to the spin basket.

Accordingly, an object of the present invention, it is possible to suppress the deformation of the filter generated when installing the filter of the fabric in the filter casing in the conventional washing machine, it is possible to smooth the flow of wash water passing through the filter and returned to the spin basket. To provide a washing machine.

1 is a longitudinal sectional view of a typical washing machine,

2 is a partially enlarged perspective view of a filter casing area of a washing machine according to the present invention;

3 is a perspective view of the filter casing of FIG.

4 is a longitudinal cross-sectional view of the filter casing coupled state of FIG.

5 is a partially enlarged perspective view of a filter area of a conventional washing machine.

* Explanation of symbols for the main parts of the drawings

13: spin basket 14: protrusion

15: pulsator 20: blade

21: washing water outflow hole 25: washing water circulation flow path

27: filter casing 35: filter

43: valve

The object of the present invention is to provide a casing, an outer tub installed in the casing, a spin basket installed in the outer tub to accommodate laundry, and a sidewall of the spin basket and washing water in the spin basket. A washing machine having at least one tubular washing water circulation passage guiding upwardly from a lower region of a spin basket to return to the spin basket, the washing machine being provided on a sidewall of the spin basket to form a portion of the washing water circulation passage. A filter casing in which a filter opening is formed in the region; It is achieved by a washing machine comprising a filter on the porous plate provided in the filter opening of the filter casing.

Here, the backflow prevention valve is installed on the wash water inlet side of the filter casing, it may be effective that the filter opening is formed on the front and rear of the filter casing.

In addition, it may be preferable that a latch holding means for fixing and holding the filter casing is formed between the side wall of the spin basket and the filter casing, and the latch holding means includes a locking projection and the locking stone formed at one region of the filter casing. It may be effective to be a locking groove formed in the side wall of the wash water circulation passage to be engaged with the group.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a longitudinal cross-sectional view of a general washing machine, Figure 2 is a partially enlarged perspective view of the filter casing area of the washing machine according to the present invention, Figure 3 is a perspective view of the filter casing of Figure 2, Figure 4 is a longitudinal section of the filter casing coupling state of Figure 2 It is also. As shown in these figures, the washing machine according to the present invention, like the conventional washing machine, has a substantially rectangular cylindrical casing 1 and a top cover 3 installed on the upper end of the casing 1.

The top cover 3 is provided with a door 5 that can be opened and closed to take out laundry, and a water supply pipe 7 for supplying washing water is provided at the rear edge of the door 5.

The outer tub 11 fixed by the some suspension apparatus 9 is provided in the casing 1, The spin basket 13 which accommodates a laundry is provided in the outer tub 11. As shown in FIG. A disk-shaped pulsator 15 is provided in the lower region of the spin basket 13. The upper end of the pulsator 15 is formed with a pulsator guide 17 protruding from the center, and a plurality of wings 19 protruding radially with respect to the axis of the pulsator 15. At the lower end, a plurality of blades 20 protruding radially with respect to the axis of the pulsator 15 are formed. The plate surface of the pulsator 15 is formed with a plurality of wash water outlet holes 21 through which the wash water in the spin basket 13 flows out to the lower end of the pulsator 15.

A plurality of protrusions 14 protrude from the inner wall of the spin basket 13, and when the laundry in the spin basket 13 is dewatered, a plurality of dewatering holes 23 penetrate the plate surface so that the washing water can flow out. It is formed. The spin basket 13 includes a washing water circulation passage 25 for returning the washing water discharged to the lower end of the pulsator 15 through the washing water outlet 21 of the pulsator 15 into the spin basket 13. It is installed.

On the other hand, the filter casing 27 which forms a part of the washing water circulation passage 25 on the sidewall of the spin basket 13 and returns the washing water moving along the washing water circulation passage 25 into the spin basket 13. Is installed. The filter casing 27 has a front casing 29 and a rear casing 31 in which filter openings are formed. The filter openings of the front casing 29 and the rear casing 31 are provided with a perforated plate filter 35 for collecting foreign substances and discharging the wash water. In the upper region of the front casing 29, a locking protrusion 37 is provided to be fixed to the side wall of the spin basket 13, and a plurality of sides accommodating the screw 41 to be engaged with the rear casing 31 on both sides. The count sink 39 is formed. A lower portion of the rear casing 31 is provided with a valve 43 for preventing backwash water flowing into the filter casing 27 through the wash water circulation passage 25. The valve 43 is assembled to the projections 45 protruding from both sides of the filter casing 27, and the rotation range is limited by the ribs 47 protruding toward the front surface from the plate surface of the rear casing 31. A plurality of screw holes 49 communicating with the count sink 39 of the front casing 29 are formed on both side surfaces of the rear casing 31.

According to the configuration as described above, after storing the laundry in the spin basket 13, the detergent is put in the appropriate amount according to the amount or type of laundry, and then the washing machine is operated, the spin basket 13 through the water supply pipe (7) Washing water is supplied. When an appropriate amount of washing water is supplied into the spin basket 13, the pulsator 15 provided below the spin basket 13 starts to rotate. Washing water flow is formed in the spin basket 13 by the forward and reverse rotation of the pulsator 15, and a part of the washing water in the spin basket 13 is pulsed through the washing water outlet 21 formed in the pulsator 15. It flows out to the lower part of the eater 15. The washed water is moved upward along the washing water circulation passage 25 formed on the inner wall of the spin basket 13 by the rotation of the blade 20 on the lower surface of the pulsator 15. The washing water moving along the washing water circulation passage 25 includes foreign substances such as fluff generated when the laundry contacts the protrusions 14 formed on the inner wall of the spin basket 13 by the washing water flow. Washing water containing foreign matter moves through the washing water circulation passage 25 through the valve 43 located in the lower region of the filter casing 27 in the washing water circulation passage 25 into the filter casing 27. Inflow. The foreign matter contained in the wash water introduced into the filter casing 27 is collected in the filter 35 on the porous plate provided in the front casing 29 and the rear casing 31 of the filter casing 27. The washing water passing through the front casing 29 of the washing water filtered by the filter 35 immediately returns to the spin basket 13, and the washing water passing through the rear casing 31 is washed with the rear casing 31. It is moved upward through the spaced space between the rear walls of the circulation passage 25 and returned to the spin basket 13 through the opening region formed in the upper region of the front casing 29. During the foreign matter collection process, the foreign matter collected in the filter 35 does not remain on the filter 35 plate surface and flows by the wash water, and thus does not interfere with the flow of the wash water returned into the spin basket 13.

Thus, by providing a filter casing which is provided on the sidewall of the spin basket and forms a part of the washing water circulation flow path and the filter opening is formed in at least one region, and a porous plate-like filter provided in the filter opening of the filter casing, It is possible to suppress the deformation of the filter generated when the filter of the fabric is installed in the filter casing in the washing machine, it is possible to smooth the flow of wash water passing through the filter and returned to the spin basket.

As described above, according to the present invention, the deformation of the filter generated when the filter of the fabric is installed in the filter casing in the conventional washing machine can be suppressed, and the flow of the wash water returned to the spin basket through the filter is smooth. A washing machine is provided to make it possible.

Claims (4)

A casing, an outer tub installed in the casing, a spin basket installed in the outer tub to receive laundry, and installed on a sidewall of the spin basket and guiding the washing water in the spin basket upward from a lower region of the spin basket. A washing machine having at least one tubular washing water circulation passage for returning into the spin basket, A filter casing installed on the sidewall of the spin basket to form a portion of the washing water circulation passage and having a filter opening formed in at least one region; And a porous plate-shaped filter installed at the filter opening of the filter casing. The method of claim 1, The non-return valve is installed on the washing water inlet side of the filter casing, The filter opening is formed in the front and rear of the filter casing washing machine. The method of claim 1, And a latch holding means for holding and holding the filter casing between the sidewall of the spin basket and the filter casing. The method of claim 3, The hook holding means is a washing machine, characterized in that the locking groove formed on the side wall of the washing water circulation passage so as to engage with the locking projection formed in one area of the filter casing.