TWI427203B - Washing machine - Google Patents

Description

washing machine Technical field

The present invention relates to a washing machine which can maintain sufficient water pressure to circulate water even at a low water level.

Background technique

In the related art, a washing machine having a circulating water passage and a filter is known in the Japanese Patent Publication No. 7-255922 (Patent Document 1).

Hereinafter, the washing machine disclosed in Patent Document 1 will be described using FIG.

Fig. 4 is a side cross-sectional view showing the entire structure of a conventional washing machine described in Patent Document 1. As shown in Fig. 4, the conventional washing machine is provided with a water tank 3 disposed in the outer tub 2, a circulating water passage 120 disposed in the vertical direction on the inner circumferential surface of the water tank 3, and a cotton water provided at the upper end of the circulating water passage 120 and having cotton. The spouting opening 150 of the velvet filter 150 is constructed. The inner surface of the bottom of the water tank 3 is provided with a rotary wing 5 which is formed by the rear wing 502 being radially formed on the opposite side from the bottom of the water tank 3.

On the other hand, when the rotary vane 5 is rotated while the water tank 3 is storing water, the water at the bottom of the water tank 3 passes through the water outlet 200 and is sent to the lower end opening 130 of the circulating water passage 120 by the pumping action of the tail fin 502. Thereafter, the incoming water rises in the circulating water passage 120 and is discharged into the water tank 3 through the spouting opening 140. At this time, foreign matter such as lint mixed with the water discharged into the water tank 3 is collected by the lint filter 150.

Further, since the conventional washing machine automatically selects the amount of water according to the amount of the laundry, when the amount of the laundry is small, the washing water level in the water tank 3 is set to a lower position. At this time, the pumping action of the tail fin 502 of the rotary wing 5 is weak, and becomes the spouting opening 130 which cannot sufficiently raise the water to the upper end of the circulating water passage 120. Therefore, the amount of water passing through the lint filter 150 is reduced and the collection efficiency of foreign matter is lowered.

Therefore, a method of setting the washing water level to a higher position and increasing the amount of water passing through the lint filter 150 to improve the collection efficiency of the foreign matter is considered. However, in such a case, even if the laundry is small, a certain amount of washing water is always required, so that the effect of saving water cannot be achieved.

Invention

The washing machine of the present invention includes a water tank having a rotary wing at the bottom and a groove that is rotatably wrapped in the water tank, and the washing machine is provided with a first circulation water passage and a second circulation water passage on the inner circumferential surface of the water tank. The first circulating water passage includes a first opening that is disposed at a position facing the outer peripheral side of the rotating blade, and a first filter that has a first discharging portion that is provided above the water tank, and the second circulating water passage is included in the first circulating water passage. a second opening that is located at a position on the outer peripheral side of the rotary wing, a second discharge portion that is provided in the water tank, and a second filter that has a third discharge portion that is provided between the second opening and the second discharge portion. The second discharge portion is provided at a position lower than the first discharge portion. Thereby, even if the washing water level is set to a low water level, the water can be discharged through the filter through the second circulating water passage. As a result, the collection efficiency of foreign materials such as cotton velvet can be improved.

Simple illustration

Fig. 1 is a side sectional view showing the entire structure of a washing machine in accordance with an embodiment of the present invention.

Fig. 2 is a perspective view showing the structure of a second circulation water passage of the washing machine of the embodiment of the present invention.

Fig. 3 is a perspective view showing the internal structure of a second circulation water passage of the washing machine in accordance with an embodiment of the present invention.

Fig. 4 is a side sectional view showing the entire configuration of a conventional washing machine.

The best form for implementing the invention

Hereinafter, the embodiment of the present invention will be described with reference to the drawings. Further, the present invention is not limited to the embodiment.

(implementation type)

Fig. 1 is a side sectional view showing the entire structure of a washing machine in accordance with an embodiment of the present invention.

As shown in Fig. 1, the washing machine of the present embodiment includes a water tank 3 having a plurality of water passing holes 16 in the periphery thereof, and a groove 2 which is rotatably wrapped in the water tank 3. The outer tub 2 prevents the vibration of the outer tub 2 from being transmitted to the outer casing 1 by being supported by the plurality of hangers (not shown) inside the outer casing 1. The upper end of the water tank 3 is provided with a balancer 11 for suppressing vibration during centrifugal dewatering.

The bottom of the water tank 3 is provided with a rotary wing 5, and the rotary wing 5 is freely rotatable. The rotary wing 5 includes a stirring blade 501 formed on the opening side of the water tank 3 and a radial tail 502 provided on the bottom side of the water tank 3. Further, the rotational power of the motor 6 attached to the lower surface of the outer tub 2 is transmitted to the water tub 3 and the rotary vane 5 through the motor pulley 7, the belt 8, the main pulley 9, and the power switching unit 10. The power switching unit 10 physically switches the connection between the water tank 3 and the transmission shaft of the rotary wing 5, so that the water tank 3 and the rotary wing 5 rotate integrally when centrifugally dewatering, and only the rotary wing 5 rotates at other times. . Further, the structure of the water tank 3 and the rotary vane 5 may be rotationally driven without being transmitted through the belt 8 or the like.

The first water passage wall member 30 is attached to the inner circumferential surface of the water tank 3. Further, a first circulation water passage 12 extending in a substantially vertical direction (including a vertical direction) and having a flat cross section is formed between the first water passage wall member 30 and the inner circumferential surface of the water tank 3, and the first circulation water passage 12 is included in the lower end opening. The first opening portion 13 and the first filter 15 having the first discharge portion 14 opened at the upper end. A lint filter such as a mesh which is used to catch lint or the like is detachably attached to the first discharge portion 14.

Moreover, the second water passage wall member 31 is attached to the inner circumferential surface of the water tank 3. Further, a second circulation water passage 17 extending in a substantially vertical direction (including a vertical direction) and having a flat cross section is formed between the second water passage wall member 31 and the inner circumferential surface of the water tank 3, and the second circulation water passage 17 is included in the lower end opening. The second opening portion 18, the second discharge portion 19 that is open at the upper end, and the second filter 25 that protrudes in the inner direction of the water tank 3 below the second discharge portion 19. The second filter 25 is provided with a third discharge unit 23 . Further, the second discharge portion 19 of the second circulation water passage 17 is provided at a position lower than the first discharge portion 14 of the first circulation water passage 12. Thereby, when the washing water level is set to a low water level, the second discharge unit 19 can sufficiently discharge the water even if the water pressure is low. As a result, the foreign matter such as cotton lint can be trapped with good efficiency, and the laundry detergent to be charged can be sufficiently dissolved in a short time, and the washing with high washing performance can be performed in the operation time of the set rotary wing.

Hereinafter, the second circulation water passage 17 will be described in detail using a map.

Fig. 2 is a perspective view showing the structure of a second circulation water passage of the washing machine of the embodiment of the present invention. Fig. 3 is a perspective view showing the internal structure of a second circulation water passage of the washing machine in accordance with an embodiment of the present invention. In addition, Fig. 2 is a perspective view of the inner side of the second circulating water route of the washing machine of the embodiment of the present invention (the front side of the second circulating water path). Fig. 3 is a perspective view of the second circulating water of the washing machine of the embodiment of the present invention as seen from the outer peripheral side of the water tank (the back side of the second circulating water path).

As shown in FIG. 2 and FIG. 3, the second circulation water passage 17 is composed of a second opening 18 having a lower end opening, a second discharge portion 19 opening in the inner side of the water tank 3, and a main member 20 formed therein. Further, the filter chamber 21 is detachably attachable to the second filter 25 which is formed in a substantially box shape (including a box shape) in the direction of the inner side of the water tank 3.

Further, as shown in FIG. 3, the water passage 22a and the water passage 22b which are communicated with the second discharge portion 19 from the second opening portion 18 are provided on both sides of the second circulation water passage 17 on both sides of the filter chamber 21. Further, the water passage 22a and the water passage 22b side of the filter chamber 21 are provided with individual water outlets 23a and 23b above the lint filter 33 of the detachable second filter 25.

The second filter 25 includes a filter film 40 and a mesh lint filter 33 for collecting lint or the like. At this time, the lint filter 33 which is substantially in the shape of a bag (including a bag shape) is provided in the second filter 25 so as to protrude in the inner direction of the water tank 3 . Thereby, in the case where the reverse rotation or the stop of the rotary wing 5 during the washing or washing operation or the washing water flows from the inside of the water tank 3 to the second circulating water passage 17 during the draining operation, the cotton of the second filter 25 is used. The cashmere capture surface is relatively resistant to the flow of water, and it is difficult to face the lint filter 33 to reduce the flow rate of water. As a result, since the defect of the lint recovered by the lint filter 33 can be prevented from returning to the water tank 3, irrespective of the level of the washing water level, the lint attached to the clothes can be greatly reduced at the end of the washing.

Further, the water that has flowed in and out of the second filter 25 passes through the water outlet 23a and the water outlet 23b of the filter chamber 21 of the second circulating water passage 17 provided above the lint filter 33 of the second filter 25. Inflow. Thereby, the foreign matter can be efficiently collected, and the lint of the collected lint filter 33 can be prevented from being easily released when the washing operation is stopped such as the reversal of the rotary wing.

Further, since the second filter 25 is provided to protrude into the water tank 3, the clogging of the lint filter 33 or the like can be easily confirmed, so that the filter can be appropriately cleaned. In this case, the lint filter 33 may be formed by, for example, a fiber of a polyester resin fiber to which an antibacterial treatment has been applied. This prevents the generation of fungi such as cotton lint and the like, and washes them in a hygienic manner.

Further, the second filter 25 is configured such that the filter membrane 40 can be detachably attached to the filter chamber 21 of the main member 20 of the second circulating water passage 17. Further, the filter film 40 includes a protruding portion 42 formed at the lower end and a fitting portion (not shown) of the filter chamber 21 having a substantially U-shaped (including U-shaped shape) at the upper end and the fitting claw portion 432. Holding portion 41. At this time, by forming the holding portion 41 by, for example, a resin, the holding portion 41 can be elastically deformed, and the filter chamber 21 and the second filter 25 can be detachably attached.

Specifically, when the filter membrane 40 is attached to the filter chamber 21, first, the protruding portion 42 formed at the lower end of the filtration membrane 40 is first inserted into the cavity portion 44 provided in the filter chamber 21 of the main member 20. Then, the claw portion 43 provided in the holding portion 41 of the filter film 40 is swung to the locking hole 45 provided at the upper end portion of the filter chamber 21 with the protruding portion 42 inserted therein as a fulcrum. Thereby, the claw portion 43 of the holding portion 41 is fitted to the locking hole 45 provided at the upper end portion of the filter chamber 21, and the filter film 40 of the second filter 25 is supported by the claw portion 43 of the holding portion 41. The protruding portion 42 is tightly housed in the filter chamber 21 .

On the other hand, when the filter membrane 40 is to be taken out from the filter chamber 21, first, the upper portion of the holding portion 41 is pulled downward while being pulled down. Thereby, the engagement between the claw portion 43 of the second filter 25 and the locking hole 45 of the filter chamber 21 is released, and the filter film 40 and the lint filter 33 are integrally separated from the filter chamber 21, and the second can be easily performed. The lint filter 33 of the filter 25 is cleaned.

That is, the lint caught in the lint filter 33 generally contains a large amount of moisture such as dirt or detergent, and when placed in the poorly ventilated water tank 3, fungi may be generated in the lint filter 33. Therefore, by configuring the filter membrane 40 to be detachable from the filter chamber 21, the second filter 25 can be easily cleaned, and a sanitary washing machine can be realized.

Further, on both sides of the filter membrane 40, when the second filter 25 is attached to the filter chamber 21, a water passage 23a for allowing water to permeate through the filter chamber 21 and a gap between the water outlet 23b and the second filter 25 are provided. Part 34.

Further, a reservoir portion 32 is provided below the filter chamber 21. At this time, the water discharge port 23a and the water discharge port 23b of the filter chamber 21 are provided at a position higher than the lowermost end portion of the lint filter 33 of the second filter 25. In other words, when the second filter 25 is fitted into the filter chamber 21, the water outlet (the water outlet 23a and the water outlet 23b) of the filter chamber 21 is disposed above the lower end of the second filter 25. . Further, water such as washing water that has been circulated flows into the water tank 3 through the lint filter 33 provided in the second discharge portion from above the second filter 25.

Thereby, when the reverse rotation operation of the rotary blade 5 is stopped or the water is drained during the washing or washing operation, the second discharge portion 19 can flow in and flow backward from the upper direction in the second circulation water passage 17. The washing water in the water tank 3 flows into the lint filter 33 of the second filter 25 through the water-passing port 23a and the water-passing port 23b via the water passage 22a and the water passage 22b of the second circulating water passage 17, and the foreign matter can be collected.

Further, as shown in Fig. 3, inside the second circulating water passage 17, the water passages 22a and the water passages 22b are provided with individual projections 24a and projections in the water passages 23a and 23b of the filter chamber 21 at opposite positions. The portion 24b narrows the cross-sectional area of the flow path in the vicinity of the water inlet 23a and the water outlet 23b. Thereby, the discharge water pressure from the second discharge unit 19 can be secured, and the amount of water flowing into the second filter 25 through the water outlet 23a and the water outlet 23b of the second circulation water passage 17 can be secured.

The operation of the washing machine of the present embodiment configured as described above will be described below.

First, when the rotor blade 5 is rotationally driven in a state where a predetermined amount of water is accumulated in the outer tub 2, the agitating blades 501 provided on the upper surface of the rotor blade 5 in Fig. 1 are generated in the water tank 3. A stream of water that rotates horizontally (including horizontally). At this time, the water between the bottom surface of the water tank 3 and the bottom surface of the outer tank 2 is sucked up by the water passing portion 26 by the pumping action of the tail fin 502 of the rotary wing 5. Then, the first opening 13 passes through the first circulation water passage 12 to the first discharge portion 14 , and the second opening 13 passes through the second circulation water passage 17 to the second discharge portion 19 .

The water rising in the first circulation water path 12 is ejected into the water tank 3 through the lint filter of the first filter 15. Further, the water rising in the second circulation water passage 17 is discharged into the water tank 3 by the second discharge portion 19. At this time, one of the water rising in the second circulation water passage 17 is sent to the filter chamber 21 through the water outlet 23a and the water outlet 23b, and passes through the lint filter provided in the third discharge portion 23 of the second filter 25. 33 is sprayed out to the sink 3.

In this case, for example, when the amount of the laundry is high and the washing water level is high (for example, the water level H in FIG. 1), since the pressure of the rising water in the first circulating water passage 12 is high, the first discharging portion 14 passes through the first discharging portion 14 The first filter 15 is smoothly discharged into the water tank 3. On the other hand, when the amount of the laundry is small and the washing water level is low (such as the water level L in Fig. 1), since the pressure of the water rising in the first circulating water path 12 is low, the first filter 15 is used. The water that is spit out will become less.

However, the second circulating water passage 17 is provided at a position where the first circulating water passage 12 is low, and the distance between the second circulating water passage 17 and the opening portion of the first circulating water passage 12 to the discharge portion is short. Therefore, even when the water level is low (for example, the water level L in FIG. 1), the water is likely to rise in the second circulating water path 17, and can be ejected into the water treatment tank 3 through the second filter 25 without being stagnant. The lint filter 33 of the filter 25 collects foreign matter such as lint.

As described above, the washing machine of the present embodiment can remove the foreign matter contained in the water in the water tank 3 by the first filter 15 and the second filter 25 more effectively irrespective of the level of the washing water level. Moreover, since all the water level can be set, the washing water can be kept flushed and discharged, so that the washing detergent put into the water tank can be sufficiently dissolved in a short time, and the washing performance can be performed in the set running time. Washing.

Further, in the main member 20 of the second circulation water passage 17, a concave portion recessed toward the second circulation water passage 17 is formed in accordance with the thickness of the filtration membrane 40, and the filtration membrane 40 may be attached to the main member 20. Thereby, since the second filter 25 is configured not to protrude forward, it is possible to prevent the laundry from being caught in the second filter 25, for example, during washing.

1. . . shell

2. . . Outer slot

3. . . sink

5. . . Rotating wing

6. . . motor

7. . . Motor pulley

8. . . Belt

9. . . Main pulley

10. . . Power switching unit

11. . . Balancer

12. . . First circulation waterway

13. . . First opening

14. . . First spit out

15. . . 1st filter

16. . . Water hole

17. . . Second circulation waterway

18. . . Second opening

19. . . Second spit out

20. . . Main component

twenty one. . . Filter room

22a, 22b. . . waterway

twenty three. . . Third spit out

23a, 23b. . . Water outlet

24a, 24b. . . Projection

25. . . 2nd filter

26. . . Water department

30. . . First waterway wall member

31. . . Second waterway wall member

32. . . Reserve department

33. . . Cotton filter

34. . . Notch

40. . . Filter membrane

41. . . Holding unit

42. . . Protruding

43. . . Claw

44. . . Cave

45. . . Locking hole

120. . . Circulating waterway

130. . . Lower opening

140. . . Spitting water opening

150. . . Cotton filter

200. . . Water outlet

501. . . Stirring wing

502. . . Tail

Fig. 1 is a side sectional view showing the entire structure of a washing machine in accordance with an embodiment of the present invention.

Fig. 2 is a perspective view showing the structure of a second circulation water passage of the washing machine of the embodiment of the present invention.

Fig. 3 is a perspective view showing the internal structure of a second circulation water passage of the washing machine in accordance with an embodiment of the present invention.

Fig. 4 is a side sectional view showing the entire configuration of a conventional washing machine.

1. . . shell

2. . . Outer slot

3. . . sink

5. . . Rotating wing

6. . . motor

7. . . Motor pulley

8. . . Belt

9. . . Main pulley

10. . . Power switching unit

11. . . Balancer

12. . . First circulation waterway

13. . . First opening

14. . . First spit out

15. . . 1st filter

16. . . Water hole

17. . . Second circulation waterway

18. . . Second opening

19. . . Second spit out

20. . . Main component

twenty three. . . Third spit out

25. . . 2nd filter

26. . . Water department

30. . . First waterway wall member

31. . . Second waterway wall member

501. . . Stirring wing

502. . . Tail

Claims (2)

A washing machine includes a water tank having a rotating blade at a bottom portion and a groove that rotatably surrounds the water tank, wherein the inner circumferential surface of the water tank is provided with a first circulation water passage and a second circulation water passage, and the first The first circulating water passage includes a first opening that is disposed at a position facing the outer peripheral side of the rotating blade, and a first filter that has a first discharge portion that is provided above the water tank, and the second circulating water passage is included in the first circulating water passage. a second opening that is located at a position facing the outer peripheral side of the rotary wing, a second discharge portion provided in the water tank, and a third discharge portion provided between the second opening and the second discharge portion In the second filter, the second discharge portion is provided at a position lower than the first discharge portion, wherein the second circulation water passage includes a filter chamber having a water outlet, and a water passage provided on both sides of the filter chamber. When the second filter is fitted into the filter chamber, the water passage of the filter chamber is disposed above the lower end of the second filter, and the filter chamber is opposite to the water outlet. To the aforementioned second cycle A protrusion protruding toward the water-passage side is provided in the water path of the waterway. The washing machine of claim 1, wherein the second filter is protruded toward the inside of the water tank.