KR101250548B1 - Water circulation apparatus of washing machine - Google Patents

Abstract

The present invention relates to a washing water circulation system of a washing machine, comprising: a water flow generating rib protruding from a bottom of a pulsator; A circulation panel mounted on an inner circumferential surface of the washing tub so that a flow path for guiding the washing water pumped by the water flow generating rib is formed between the washing tub; A leakage preventing portion protruding from both sides of the rear surface of the circulation panel so that the end portion is in close contact with the inner circumferential surface of the washing tank; It is composed of an elastic fitting portion formed in the washing tank so that the end of the leakage preventing portion is fitted and fixed at the same time and elastically close to the end of the leakage preventing portion, to ensure the airtightness of the circulation panel and the inner tank by the leakage preventing portion and the elastic fitting portion Therefore, the leakage of the wash water is prevented, the structure of the wash water circulation device is simply formed, so that the number of parts is reduced, and the manufacturing cost and the man-hour of assembly of the wash water circulation device are reduced.

Washing machine, washing tank, pulsator, circulation channel, circulation panel, leak prevention part, elastic fitting part

Description

Water circulation apparatus of washing machine

1 is a cross-sectional view showing the internal configuration of a washing machine according to the prior art,

2 is a partially cutaway perspective view of a washing machine according to the prior art,

3 is a cross-sectional view taken along the line A-A of FIG.

Figure 4 is a rear view showing the circulation panel of the washing machine according to the prior art,

5 is a sectional view showing a washing water circulation device of a washing machine according to the present invention;

6 is a rear view of the circulation panel of the washing machine according to the present invention;

DESCRIPTION OF THE REFERENCE NUMERALS

1: washing machine 4: washing tank

10: the tide 12: the tide

14: pulsator 22: water flow rib

26: filter unit 50: washing water circulation device

52: circulation panel 54: water leakage prevention unit

56: elastic fitting 60: fitting groove

62: elastic portion

The present invention relates to a washing water circulation device for a washing machine, and more particularly, to a washing water circulation device for a washing machine, which can prevent the leakage of the washing water during circulation of the washing water and at the same time, simplify the structure of the washing water circulation device.

In general, a washing machine is a device for washing laundry through a process such as washing, rinsing, and dehydrating to remove contaminants on clothes, bedding, etc. (hereinafter referred to as 'laundry') by water, detergent, and mechanical action.

1 is a cross-sectional view showing an internal configuration of a washing machine according to the prior art, Figure 2 is a partially cutaway perspective view showing a washing machine according to the prior art, Figure 3 is a cross-sectional view taken along the line AA of Figure 2, Figure 4 is a rear view showing the circulation panel of the washing machine according to the prior art.

1 to 4, the washing machine according to the prior art, a cabinet (2) forming the appearance of the washing machine 1, and a washing tank installed in the cabinet (2) to accommodate the wash water and laundry (4), a motor (6) disposed below the washing tank (4) so that the laundry is washed by the washing tank (4), and the motor to transfer the power of the motor (6) to the washing tank (4). And a power transmission mechanism 8 provided between the 6 and the washing tub 4.

The washing tub 4 is fixed to the inside of the cabinet 2 by the support member 11 and is rotatably disposed in the outer tub 10 in which the washing water is accommodated, and the outer tub 10. It consists of an inner tub 12 having a plurality of handmade holes 12A through which laundry is received and passed through the washing water, and a pulsator 14 rotatably installed at the bottom of the inner tub 12 to form a rotating water stream of the washing water. .

The power transmission mechanism 8 selectively transmits power to the inner tank 12 and the pulsator 14 according to the operation stroke of the washing machine 1.

The upper portion of the inner tank 12 is formed with an auto balance 16 in the circumferential direction that automatically balances the washing tank 4 according to the distribution of the laundry put into the inner tank 12.

A top cover 18 having a laundry entrance 18A through which laundry is entered is mounted on an upper portion of the cabinet 2, and an upper surface of the top cover 18 prevents laundry from being randomly separated from the inner tank 12. In addition, the lid 19 for opening and closing the laundry entrance 18A is rotatably installed to prevent a safety accident of the user.

On the other hand, inside the washing tank 4 of the washing machine 1 is provided with a washing water circulation device 20 so that the washing water can be circulated from the lower portion of the inner tank 12 to the upper portion by the rotational force of the pulsator 14.

The washing water circulation device 20, the water flow generating ribs 22 protruding on the bottom surface of the pulsator 14 to pump the washing water under the inner tank 12 during the rotation of the pulsator 14, Circulation which is mounted on the inner circumferential surface of the inner tank 12 so as to guide the washing water pumped by the water flow generating rib 22 to the upper portion of the inner tank 12 to form a circulation flow path C between the inner tank 12. It comprises a panel 24.

Here, as the pulsator 14 is rotated by the power of the motor 6, the water flow generating rib 22 hits the washing water located in the lower portion of the inner tank 12 to inlet the circulation passage C. The water flow which causes the washing water to flow into the 24A is generated.

In addition, the circulation panel 24 is a plate-shaped member formed long in the vertical direction, and the wash water pumped by the water flow generating ribs 22 flows between the circulation panel 24 and the lower portion of the inner tank 12. An inlet port 24A is formed, and an outlet port 24B is formed between the upper portion of the circulation panel 24 and the lower portion of the auto balance 16 through which the washing water flowing along the circulation channel C flows out.

A filter unit 26 for collecting lint, seams and the like contained in the washing water circulated along the circulation flow path C is detachably installed at the outlet 24B as described above.

In particular, the conventional circulation panel 24, as shown in Figs. 3 and 4, the left and right sides of the back of the circulation panel 24 is hooked to the hook hole (12B) formed in the inner tank 12 ( 30 are formed respectively, and the insertion groove 32 is formed long in the vertical direction so that a sponge 34, which is in close contact with the inner circumferential surface of the inner tub 12, is inserted into and fixed to the inner left and right sides of the hook 30. do.

The hooks 30 are formed in a plurality of protrusions at positions spaced apart in the vertical direction on the rear left and right sides of the circulation panel 24, and the insertion grooves 32 are formed on the rear left side of the circulation panel 24. The sponge 34 is formed in the same size as the sponge 34 on the inner left side and the right side of the hook 30 so that the sponge 34 may be stably fixed to the right side.

The sponge 34 is a member for securing the airtightness between the circulation panel 24 and the inner tank 12, one end is inserted into the insertion groove 32 is fixed by the adhesive 36, the other end is When the circulation panel 24 is mounted, it is in close contact with the inner circumferential surface of the inner tank 12.

Therefore, the circulation flow path C is formed long in the vertical direction by the inner circumferential surface of the inner tank 12, the rear surface of the circulation panel 24, the sponge 34, and the insertion groove portion 32.

Looking at the operation of the washing water circulation device of the washing machine according to the prior art configured as described above are as follows.

First, when laundry and detergent are put into the inner tank 12 and the washing machine 1 is operated and operated by the consumer, the washing water is supplied to the outer tank 10 to a predetermined level, and the pulsator 14 is driven by the motor 6. ) Is reversed to the left and right to wash or rinse the laundry.

When the washing stroke and the rinsing stroke of the washing machine 1 as described above are completed, the inner tank 12 and the pulsator 14 are rotated at a high speed by the motor 6 so that the laundry is dewatered.

On the other hand, if the pulsator 14 is inverted from side to side during the washing stroke or rinsing stroke of the washing machine 1, the lower portion of the inner tank 12 by the water flow generating ribs 22 formed on the bottom of the pulsator 14 Washing water is pumped, and the water flow generated by the water flow generating ribs 22 flows into the inlet 24A of the circulation passage C formed at the lower portion of the inner tank 12 and the circulation panel 24.

In addition, the wash water introduced into the circulation channel C flows upward along a passage formed between the rear surface of the circulation panel 24 and the inner circumferential surface of the inner tank 12, and the outlet port 24B of the circulation channel C is provided. The circulation is supplied to the upper portion of the inner tank 12 through).

When the wash water is circulated and supplied from the lower portion to the upper portion of the inner tank 12 as described above, the washing performance of the washing machine 1 is greatly increased because the washing performance of the detergent is improved and the laundry and the washing water are rubbed. Is improved.

On the other hand, the washing water circulated to the inner tank 12 through the outlet 24B of the circulation passage C is removed various foreign matters by the filter unit 26 disposed on the outlet 24B side.

However, the washing water circulation apparatus of the washing machine according to the prior art sponges on both sides of the circulation panel 24 and the inner tank 12 so that the wash water does not leak to both sides of the circulation panel 24 and the inner tank 12. Since the structure of the 34 is sealed, the number of parts of the washing water circulation device 20 is increased and a process of inserting the sponge 34 into the insertion groove 32 of the circulation panel 24 is added. There is this.

That is, since the insertion groove 32 is formed in the same size as the sponge 34 and the sponge 34 is fixed to the insertion groove 32 by the adhesive 36, the sponge is inserted into the insertion groove 32. Inserting and fixing the 34 becomes very cumbersome and difficult.

In addition, the circulation panel 24 is formed in a complicated structure by the sponge 34 and the insertion groove 32, there is a problem that the manufacturing cost is increased due to the use of the sponge 34 and the adhesive 36. .

The present invention has been made to solve the above problems, and an object of the present invention is to provide a washing water circulation device of the washing machine that can ensure the airtightness of the circulation panel and the tank and at the same time the structure of the washing water circulation device can be simplified. have.

It is another object of the present invention to provide a washing water circulation device for a washing machine in which the number of parts and the assembly labor of the washing water circulation device can be reduced, thereby reducing the manufacturing cost.

Washing water circulation device of the washing machine according to the present invention for realizing the above object and a water flow generating rib protruding on the bottom of the pulsator; A circulation panel mounted on an inner circumferential surface of the washing tub so that a flow path for guiding the washing water pumped by the water flow generating rib is formed between the washing tub; A leakage preventing portion protruding from both sides of the rear surface of the circulation panel so that the end portion is in close contact with the inner circumferential surface of the washing tank; An end portion of the leakage preventing portion is fitted and fixed, and at the same time the elastic fitting portion formed in the washing tank to elastically close to the end of the leakage preventing portion.

Here, the leakage preventing portion is composed of a leakage preventing rib protruding in the circulation direction of the wash water on both sides of the back of the circulation panel.

And, the elastic fitting portion, the fitting groove portion is inserted into the end of the leakage preventing portion is formed long in the circulating direction of the wash water, the fitting groove portion between the fitting groove portion and the washing tank so as to elastically close to the end of the leakage preventing portion An elastic portion is formed.

The elastic fitting portion is formed by the fitting groove portion is formed in the bone portion and the portion of the washing tank facing the leakage preventing portion is bent in the circumferential direction so that the elastic portion is formed integrally with the washing tank.

The elastic fitting portion is formed to be bent in the cross section of the 'Ｗ' shape in the washing tank.

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

5 is a cross-sectional view showing a washing water circulation apparatus of the washing machine according to the present invention, Figure 6 is a rear view showing the circulation panel of the washing machine according to the present invention.

For reference, the same reference numerals are given to the same or similar components as the conventional components, and detailed description thereof will be omitted.

Washing water circulation device of the washing machine according to the present invention, as shown in Figure 5 or 6, the water flow generating ribs 22 protruding radially on the bottom surface of the pulsator 14, and the water flow generating ribs 22 The circulation panel 52 mounted on the inner circumferential surface of the inner tank 12 and the inner tank 12 so that the washing water pumped by the water is circulated to the upper side of the inner tank 12 through a circulation flow path C formed between the inner tank 12 and the inner tank 12. The leakage preventing portion 54 protrudes in both the up and down direction of the rear surface of the circulation panel 52 so that the end portion is in close contact with the inner circumferential surface thereof, and the end portion of the leakage preventing portion 54 is fitted and fixed, and at the same time the leakage preventing portion ( 54 is configured to include an elastic fitting portion 56 formed in the vertical direction in the inner tank 12 so as to be elastically in close contact with the end portion.

Here, the circulation panel 52 is a plate-shaped member formed long in the vertical direction, and the wash water pumped by the water flow generating ribs 22 flows between the circulation panel 52 and the lower portion of the inner tank 12. An inlet 24A is formed, and an outlet 24B is formed between the upper portion of the circulation panel 52 and the lower portion of the auto balance 16 through which the washing water flowing along the circulation channel C flows out.

The outlet 24B is detachably provided with a filter unit 26 for collecting lint, seams and the like contained in the washing water circulated along the circulation flow path C.

Hooks 53 fastened to the hook holes 12B formed in the inner tub 12 are protruded on both sides of the rear surface of the circulation panel 52 as described above, and are spaced apart in the vertical direction along the circulation panel 52. A plurality of protrusions are formed.

In addition, the leakage preventing part 54 is formed of a leakage preventing rib 54 formed long in the vertical direction on both sides of the rear surface of the circulation panel 52.

The leakage preventing part 54 is formed in the hook 53 of the circulation panel 52 to be spaced apart in the left and right direction, and the hook 53 is formed so that the cross-sectional area of the circulation flow path C is as large as possible. It is formed in the position as close as possible.

In addition, the elastic fitting portion 56, the fitting groove portion 60 is inserted into the end of the leakage preventing portion 54 is formed long in the vertical direction, the fitting groove portion 60 of the leakage preventing portion 54 An elastic portion 62 is formed between the fitting groove 60 and the inner tub 12 to be in close contact with the end portion.

The elastic fitting portion 56 as described above has a portion of the inner tank 12 facing the leakage preventing portion 54 is bent in the circumferential direction is formed in an uneven structure. Accordingly, the fitting groove 60 is a valley portion of the unevenness, and the elastic portion 62 is an uneven portion formed on the left and right sides of the fitting groove 60.

That is, the elastic fitting portion 56 is preferably bent in the circumferential direction in the inner tank 12 so that the inner tank 12 portion in which the leak prevention portion 54 is in close contact with the 'Ｗ'-shaped uneven cross section.

The elastic fitting part 56 and the leakage preventing part 54 may have a depth of the fitting groove 60 or the leakage preventing part 54 so that the elastic fitting part 56 and the leakage preventing part 54 may be in close contact with each other by a predetermined elastic force when the circulation panel 52 is mounted. Protruding length of is set appropriately.

At this time, the inner tank 12 is a sheet metal processing by a metal sheet having excellent elasticity, the elastic fitting portion 56 is processed at the same time where the leakage preventing portion 54 is in close contact with the sheet metal processing of the inner tank 12. .

Looking at the operation and assembly process for the washing water circulation device of the washing machine according to the present invention configured as described above are as follows.

First, when the pulsator 14 is inverted from side to side, the washing water in the lower portion of the inner tank 12 is pumped by the water flow generating ribs 22 formed on the bottom surface of the pulsator 14 so that the inner tank 12 and the circulation panel ( The washing water flows into the inlet port 24A of the circulation flow path C formed between the lower portions of the 52.

In addition, the washing water introduced into the circulation channel C flows upward along a passage formed between the circulation panel 52 and the inner circumferential surface of the inner tank 12, and the upper portion of the circulation panel 52 and the auto balance ( 16 is circulated and supplied to the upper portion of the inner tank 12 through the outlet port 24B of the circulation channel C formed between the inner circumferential surfaces of the inner circumferential surface 16.

At this time, since the leakage preventing portion 54 of the circulation panel 52 is fitted to the elastic fitting portion 56 of the inner tank 12 and is elastically in close contact, the inner tank 12 and the circulation panel 52. Water leakage through both sides of the) is prevented by the leakage preventing portion 54 and the elastic fitting portion 56.

When the wash water is circulated and supplied from the lower portion of the inner tank 12 to the upper portion, the washing performance of the detergent is improved by the washing water and the laundry and the washing water are rubbed, so the washing performance of the washing machine 1 is improved. Greatly improved.

On the other hand, looking at the assembly process of the washing water circulation device 50 according to the present invention, the pulsator 14 provided with the water flow generating rib 22 is rotatably installed on the bottom of the inner tank 12, the inner tank The circulation panel 52 is mounted on the inner circumferential surface of the inner tub 12 so that the end portion of the leakage preventing portion 54 is elastically fitted to the elastic fitting portion 56 of (12).

That is, the circulation panel 52 is mounted on the inner circumferential surface of the inner tub 12 by fastening the hooks 53 to the plurality of hook holes 12B formed in the inner tub 12.

As the circulation panel 52 is mounted on the inner circumferential surface of the inner tank 12 as described above, the end of the leakage preventing part 54 is fitted into the fitting groove 60 of the elastic fitting part 56, and the circulation As the panel 52 is completely mounted to the inner tub 12, the elastic part 62 of the elastic fitting part 56 is elastically deformed, and the elastic fitting part 56 is prevented from leaking by the elastic force of the elastic part 62. The portions 54 are in close contact with each other.

Therefore, by inserting the end of the leakage preventing portion 54 in the fitting groove 60 of the elastic fitting portion 56, not only the installation position of the leakage preventing portion 54 is set, but also the leakage preventing portion 54 ) Is stably fixed to prevent the phenomenon of deforming in the left and right directions by the flow pressure of the wash water.

In addition, the leakage preventing part 54 and the elastic fitting part 56 are elastically in close contact with the elastic part 62 of the elastic fitting part 56, whereby the leakage preventing part 54 and the elastic fitting part 56 are provided. There is no gap between the), the leakage preventing portion 54 and the elastic fitting portion 56 is more firmly coupled.

The washing water circulation system of the washing machine according to the present invention as described above has been described with reference to the illustrated drawings, but the present invention is not limited to the above-described embodiment and drawings, and various modifications by those skilled in the art within the technical scope of the invention Of course, variations are possible.

That is, a plurality of circulation panels may be mounted on the inner circumferential surface of the inner tank so that a plurality of circulation passages may be formed in the inner tank.

In addition, a plurality of leak prevention portions are formed on both sides of the circulation panel, and the inner shell may be formed in a structure in which a plurality of elastic fitting portions are formed so that the fitting grooves are formed in the plurality of bone portions, respectively.

Washing water circulation device of the washing machine of the present invention configured as described above is the leakage preventing portion protrudes on both sides of the back of the circulation panel and the elastic fitting portion is formed in the washing tank is fixed to the end of the leakage preventing portion and at the same time elastically at the end of the leakage preventing portion Since it is in close contact with each other, the airtightness between the circulation panel and the inner tank is secured to prevent leakage of the wash water and the structure of the wash water circulation device is simply formed.

In addition, since the washing water circulation device does not need a sponge and an adhesive, the number of parts is reduced compared to the conventional washing water circulation device, thereby reducing the manufacturing cost, and easily fabricating the assembly water during manufacturing of the washing water circulation device. There is an advantage.

In addition, since the end portion of the leakage preventing portion is inserted into the fitting groove of the elastic fitting portion when the circulation panel is mounted, the installation position of the leakage preventing portion is accurately set by the fitting groove portion, and the end portion of the leakage preventing portion is stably inside the fitting groove portion. There is a set advantage.

In addition, since the leakage preventing part and the elastic fitting part are elastically tightly contacted by the elastic part of the elastic fitting part when the circulation panel is mounted, a gap between the leakage preventing part and the elastic fitting part is prevented, and the leakage preventing part and the elastic part are prevented. There is an advantage that the fitting portion is more firmly combined.

Claims (6)

Water flow generating ribs protruding from the bottom of the pulsator; A circulation panel mounted on an inner circumferential surface of the washing tub so that a flow path for guiding the washing water pumped by the water flow generating rib is formed between the washing tub; A leakage preventing portion protruding from both sides of the rear surface of the circulation panel so that the end portion is in close contact with the inner circumferential surface of the washing tank; And And an elastic fitting portion formed in the washing tub to be elastically tightly attached to the end portion of the leakage preventing portion while being fixed to the end portion of the leakage preventing portion, The elastic fitting portion, Washing water of the washing machine formed with an elastic portion between the fitting groove and the washing tank so that the fitting groove portion is inserted into the end of the leakage preventing portion is long in the circulation direction of the wash water, the fitting groove is elastically in close contact with the end of the leakage preventing portion circulator. The method according to claim 1, The water leakage preventing unit washing water circulation device of the washing machine, characterized in that made of a leakage preventing rib protruding in the circulating direction of the wash water on both sides of the back of the circulation panel. The method according to claim 1, Hook holes are formed in the washing tank, The circulation panel further comprises a hook that is hooked to the hook hole to close the leakage preventing portion to the fitting groove. The method according to claim 1, The washing portion of the washing machine, characterized in that the elastic fitting portion is formed in the bone groove portion and the portion of the washing tank facing the leakage preventing portion is bent unevenly in the circumferential direction so that the elastic portion is formed integrally with the washing tank. circulator. The method according to claim 1, The elastic fitting portion washing water circulation apparatus of the washing machine, characterized in that formed in the washing tank bent in a 'W' shape cross section. Water flow generating ribs protruding from the bottom of the pulsator; A circulation panel mounted on an inner circumferential surface of the washing tub so that a flow path for guiding the washing water pumped by the water flow generating rib is formed between the washing tub; A leakage preventing portion protruding from both sides of the rear surface of the circulation panel so that the end portion is in close contact with the inner circumferential surface of the washing tank; And Washing water circulation device of the washing machine including an elastic fitting portion bent a portion of the washing tank to form a valley and floor so that the end of the leakage preventing portion elastically close to the washing tank.

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