KR101721868B1 - Washing Machine - Google Patents

Abstract

The present invention improves the washing efficiency by supplying the detergent dissolved in the washing water to the laundry, prevents the detergent from remaining in the laundry after the laundry is finished, ≪ / RTI >

Washing machine, detergent, dissolving, circulation

Description

Washing Machine

The present invention relates to a detergent dissolver for dissolving a detergent and a detergent spray nozzle for uniformly spraying the detergent solution dissolving through the detergent dissolver to the laundry.

Generally, the washing machine is a device for removing foreign matters adhered to the laundry by chemical decomposition of the detergent supplied to the laundry, using a mechanical impact between the laundry and the washing water or between the laundry and the washing machine.

The washing apparatus includes a washing tub for storing washing water, a pulsator for washing laundry by a pulsator rotatably installed in the washing tub, a tub for storing washing water, a drum rotatably installed in the tub, And a drum-type washing machine for washing laundry by using the washing machine.

In particular, the drum type washing apparatus has an advantage that the overall size of the washing apparatus can be reduced as compared with a pulsator type washing apparatus in which a drum as a washing tub is rotated, and problems such as twisting of clothes are hardly generated.

In addition, unlike the pulse-type washing machine, there is an advantage in that it is easy to add various washing courses for treating laundry by using a drying function or steam.

In the conventional washing apparatuses described above, when the detergent supplied for washing is not completely dissolved in the washing water in the washing process, the washing efficiency is lowered and the detergent remains in the washed laundry.

Disclosure of the Invention An object of the present invention is to provide a washing machine capable of dissolving a detergent in washing water to be supplied to laundry.

Another object of the present invention is to provide a washing machine capable of improving the washing efficiency and preventing the detergent from remaining in the laundry by dissolving the detergent in the washing water and supplying the detergent to the laundry.

Another object of the present invention is to provide a washing machine capable of evenly spraying detergent dissolved in washing water on laundry.

According to the present invention, there is provided a washing machine comprising a tub for storing washing water, a drum rotatably installed in the tub, into which laundry is introduced, and a detergent box in which the detergent is stored, A detergent dissolving device for dissolving the detergent supplied to the tub in the washing water to form a detergent solution; and a controller for supplying the detergent solution to the tub, And a spray device for spraying the laundry into the drum.

In this case, the detergent dissolving device may include a pump communicating with the tub, and a detergent solution flow path supplying detergent and washing water pressurized by the pump to the tub.

The water supply device may include a water supply channel connected to the tub via a detergent box, and the spray device may include a detergent spray nozzle provided at an end of the water supply channel.

In addition, the washing apparatus of the present invention further includes a solution flow path for supplying the detergent solution to the detergent spray nozzle, wherein one side of the solution flow path is connected to the pump and the other side is connected to the detergent spray nozzle .

The washing machine of the present invention may further include a valve communicating with the pump and selectively opening the solution passage and the solution passage.

Meanwhile, the injection device may include a spray water supply flow path for supplying washing water to the tub, and a detergent spray nozzle provided at an end of the spray water supply flow path.

In this case, the washing apparatus of the present invention further includes a solution flow path for supplying the detergent solution to the detergent spray nozzle, wherein one side of the solution flow path is connected to the pump and the other side is connected to the detergent spray nozzle have.

The washing machine of the present invention may further include a valve communicating with the pump and selectively opening the solution passage or the solution passage.

The detergent spray nozzle may further include a washing water pipe including a washing and milking outlet through which the spray water supply flow path is connected and the wash water is discharged, a dissolving liquid pipe connected to the solution flow path and surrounding the outer circumferential surface of the washing water pipe, And an outlet provided at an end of the dissolving liquid pipe, and the washing and milking outlet may be provided inside the dissolving liquid pipe.

The detergent spray nozzle may further include a dissolving liquid pipe connected to the dissolving liquid flow path and having a dissolving liquid outflow port, a washing water pipe connected to the spray water supply flow path and surrounding the dissolving liquid pipe, And a cap having an outlet communicating with the solution outlet, and the wash water pipe may further include a flow path spirally arranged toward the discharge port.

In addition, at least two or more flow paths may be provided.

The washing machine according to the present invention can provide an effect of supplying detergent dissolved in washing water to laundry.

In addition, the washing machine according to the present invention can improve the washing efficiency and prevent the detergent residue by supplying the detergent dissolved in the laundry.

In addition, the washing apparatus according to the present invention can provide an effect of uniformly supplying detergent dissolved in washing water to laundry.

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

Unless defined otherwise, all terms herein are the same as the general meaning of the term as understood by one of ordinary skill in the art to which this invention belongs, and if the terms used herein conflict with the general meaning of the term Are as defined herein.

It is to be understood that the present invention is not limited to the details of the embodiments described below, .

FIG. 1 is a conceptual diagram of a washing machine according to an embodiment of the present invention. Referring to FIG. 1, the structure and coupling relationship of a washing machine according to an embodiment of the present invention will be described below.

The washing machine 100 according to the present embodiment includes a cabinet 1 for forming an outer appearance, a tub 2 provided in the cabinet for storing wash water, a drum 3 rotatably installed in the tub, (6) for pressurizing the washing water stored in the tub (2) and a drain for guiding the washing water supplied from the pump (6) to the outside of the cabinet And a flow path 8.

The cabinet 1 may include an opening (not shown) provided with a door (not shown) that can be selectively opened and closed by a user, and the tub 2 may include a tubular shape having one side opened to correspond to the opening of the cabinet As shown in FIG.

The drum 3 is rotatably installed inside the tub 2, and laundry to be introduced into an opening of the cabinet is stored.

(Not shown) for transmitting the rotational force of the motor to the drum 3 may be provided on the rear surface of the tub 2 for rotating the drum 3, And may connect the motor and the rear surface of the drum 3 through a rear surface of the tub 2.

The drum 3 includes a lifter 31 for moving the laundry when the drum rotates and an inner peripheral surface of the drum 3 through which the washing water stored in the tub 2 passes, And may have a plurality of through holes 33 that can be introduced.

The flow path is a general term for the flow paths for supplying washing water and detergent necessary for washing into the tub and discharging the washing water in the tub to the outside of the tub as needed.

The flow path provided in the present embodiment includes a water supply channel 41 for supplying wash water and detergent to the tub 2, a discharge channel 41 for discharging washing water stored in the tub 2 to the outside of the tub 43), and a circulation channel (44) for spraying the washing water stored in the tub (2) onto the laundry.

One side of the water supply channel 41 is connected to a water supply source (not shown) provided outside the cabinet 1, and the other side is connected to the upper side of the tub 2. A flow meter 411 for measuring the amount of washing water supplied to the tub and a detergent box 413 for storing the detergent so that the detergent flows together when the washing machine is supplied with the tub, .

The flow meter 411 controls the amount of washing water supplied to the tub by measuring the amount of washing water flowing through the water supply channel 41. The detergent box 413 is disposed in the cabinet 1), so that the user can input the detergent as needed.

One side of the discharge flow path 43 is connected to the bottom surface of the tub 2 to guide the washing water discharged from the tub 2 to a pump 6 to be described later.

The circulating flow path 44 circulates washing water stored in the tub while the drum 3 is rotating (in the course of a washing cycle) for washing after the supply of washing water and detergent is completed through the water supply channel, So that the washing efficiency can be improved.

Therefore, the circulation flow path 44 may be provided so that one side communicates with the valve 5 to be described later, and the other side passes through the upper side of the tub 2, and a detailed description thereof will be described later.

The drainage passage 8 communicates with the pump 6 at one side and the other side communicates with the outside of the cabinet 1 to discharge the washing water in the tub 2 to the outside of the cabinet It is the euro.

A switching valve V may be provided between the drainage passage 8 and the valve 5 to selectively open the drainage passage.

Therefore, the washing water discharged into the discharge passage 43 is moved by the pump 6 and then moved along the oil passage opened by the switching valve V.

Meanwhile, in the washing machine including the above-described configuration, the washing water is supplied to the tub 2 through the water supply channel 41 when the washing cycle is started. The washing water flowing into the tub 2 supplies the detergent stored in the detergent box 413 to the tub 2 together with the detergent box 413 in the water supply channel 41.

However, since the water supply channel 41 is only configured to allow the wash water to move to the tub 2 via the detergent box, the water supply channel 41 is not configured to completely dissolve the detergent in the wash water.

That is, the detergent flowing into the tub 2 can be dissolved in the washing water while flowing through the water supply channel 41. However, the length of the water supply channel 41 and the time for the water to flow through the water supply channel 41, Is not completely dissolved in the washing water.

When the detergent is supplied to the tub 2 without being completely dissolved in the washing water, the detergent which is not dissolved in the laundry stored in the drum 3 is supplied, which may cause deterioration of the washing efficiency and residual detergent after washing.

Accordingly, in order to solve the above-mentioned problem, the present invention provides a detergent dissolving channel 45 for dissolving a detergent, a solution liquid for spraying the detergent solution completely dissolved in the washing water through the detergent dissolving channel 45, (42) for supplying the detergent solution supplied to the solution flow path (46) to the tub (2) by the feed water pressure of the wash water, the washing water flow path (42) To be selectively supplied to the valve (5).

The valve 5 includes an inlet 51 connected to the switching valve V, a first outlet 52 connected to the detergent solution passage 45, a second outlet 52 connected to the circulation passage 44, 53, a third outlet 54 connected to the solution passage 46, and an outlet opening / closing part 55 for opening / closing the outlet.

It is sufficient that the outlet opening / closing portion 55 can selectively supply the washing water flowing into the inlet 51 to each of the outflow openings. Accordingly, it is an example that valves are provided for the respective outlets so that the outlets can be opened according to the control signal of the control unit (not shown).

One side of the detergent solution passage 45 may communicate with the rear surface of the tub 2 and the other side may be connected to the first outlet 52 of the valve 5.

The washing water and the detergent supplied to the tub 2 through the water supply channel 41 are discharged to the discharge flow passage 43 and then pressurized by the pump 6, And the detergent solution is circulated through the detergent solution passage 45 into the tub 2, the detergent can be completely dissolved in the washing water.

As a result, since the detergent solution passage 45 and the pump 6 function as a detergent dissolving device, the detergent solution is supplied to the tub 2 without being completely dissolved in the washing water, It is possible to solve the problem of residual detergent after washing.

Meanwhile, the detergent solution circulating through the detergent solution passage 45 may be supplied to the upper portion of the drum through the solution passage 46.

That is, one side of the solution flow path 46 may be connected to the third outlet 54 of the valve 5, and the other side thereof may be connected to the injection water supply flow path 42.

The injection water supply flow path 42 is a flow path for supplying washing water to the tub 2 separately from the water supply flow path 41. The connection of the solution flow path 46 to the injection water supply flow path 42 after the injection water supply flow path 42 is provided separately from the water supply flow path 41, So as to realize the injection of the detergent solution by using the water injection pressure.

One end of the circulation flow path 44 is connected to the second outlet 53. The circulating flow path 44 circulates washing water stored in the tub while the drum 3 is rotating (in the course of a washing cycle) for washing after the supply of washing water and detergent is completed through the water supply channel, As shown in FIG. Therefore, it is preferable that the other side of the circulation flow path 44 is provided to communicate with the upper part of the tub 2.

The spray water supply flow path 42 and the solution flow path 46 may communicate with the tub 2 through a detergent spray nozzle 7.

Fig. 2 is a conceptual view of a detergent spray nozzle applicable to the present embodiment. Hereinafter, the structure of the detergent spray nozzle will be described.

The detergent spray nozzle 7 is connected to the spray water supply flow path 42 and includes a washing water pipe 71 through which wash water flows and a dissolving liquid pipe 72 through which the detergent solution flows, An outlet 73 for allowing the washing water and the detergent solution to escape to the outside of the detergent spray nozzle together, and a sprayer 74 for dispersing the mixed solution evenly.

The washing water pipe 71 includes a head 7111 including a washing and drinking inlet 7111 connected to the spray water supply passage 42 and a coupling portion 7113 binding the washing water pipe 71 to the solution pipe 72 And a washing and milking outlet 713 formed at a predetermined distance from the washing and milking inlet 7111.

The solution liquid pipe 72 includes a head coupling portion 723 in which the coupling portion 7113 is received so that the washing and milking outlet 713 of the washing water pipe 71 can be received in the solution liquid pipe 72 Respectively. In addition, one side of the dissolving liquid pipe 72 is preferably provided with a dissolving liquid inlet port 721 through which the dissolving liquid flow path 43 is connected and into which the detergent dissolving liquid flows.

The outlet port 73 is formed at the distal end of the dissolving liquid pipe 72 so that the detergent solution flowing through the dissolving liquid pipe 72 flows out to the washing water outlet 713 of the washing water pipe 71 So that the washing water can be discharged to the outside of the detergent spray nozzle 7 by the washing water.

The jetting unit 74 is configured to jet the mixed liquid discharged from the outlet 73 to the laundry uniformly.

Accordingly, the mixed liquid may be injected through the outlet 73 and may be injected through the inclined piece 741, which is spaced apart from the outlet 73 by a predetermined distance.

Since the washing water flowing through the washing water pipe 71 has a predetermined water pressure, the mixed solution of the washing solution and the detergent solution exiting the outlet 73 also has a predetermined water pressure.

Therefore, when the mixed liquid hits the slant pieces 741, the mixed liquid will be sprayed along the slanting direction of the slant pieces 741, which is advantageous from the viewpoint of structural and economical aspects.

Also, it is preferable that the mixed liquid is uniformly sprayed onto the laundry stored in the drum, so that the inclined piece 741 is inclined so that the mixed liquid can be injected into the drum.

3 is a conceptual diagram of another embodiment of a detergent spray nozzle.

The detergent spray nozzle 9 of the present embodiment is characterized in that it has a vortex structure in which washing water and detergent solution can be easily mixed.

The detergent dispensing nozzle 9 includes a solution liquid pipe 91 to which the solution liquid flow path 46 is connected, a washing water pipe 93 to which the injection feeding and feeding path 42 is connected, (95).

The dissolution liquid pipe 91 includes a dissolution liquid outlet 911 through which the detergent solution supplied from the dissolution liquid flow path 46 is discharged.

The washing water pipe 93 is provided so as to surround the dissolving liquid pipe 91 so that washing water can flow along the outer circumferential surface of the dissolving liquid pipe 91 and is connected to the washing water feeding outlet 931, (Not shown).

The washing and milking outlet 931 is a hole through which washing water flowing along the washing water pipe 93 flows into the mixing chamber 953 of the cap 95. The oil passage 933 is connected to the washing water pipe 93 so that the washing water flowing out to the washing and milking-discharging outlet 931 flows in the direction of the dissolving liquid outlet 911 of the dissolving liquid pipe 91.

3B shows an embodiment in which two washing and feeding oil outlets 931 and two flow paths 933 are formed.

In addition, the flow path 933 may be provided spirally toward the dissolution liquid outlet 911. This makes it possible to easily mix the washing water supplied to the washing and milking outlet 931 with the detergent solution supplied from the solution tank 91 by forming a vortex in the mixing chamber 953 of the cap 95 .

The cap 95 is connected to the outer peripheral surface of the washing water pipe 93 to mix the washing water and the dissolving liquid supplied from the washing liquid pipe 91 and the washing water pipe 93.

The cap 95 may be screwed to an engaging portion 935 formed on the outer circumferential surface of the washing water pipe 93 and may include a mixing chamber 953 for mixing detergent solution and washing water, And a mixed solution outlet 955 through which the formed mixed solution is ejected.

The detergent solution flowing into the solution pipe 91 flows into the mixing chamber 953 through the solution outlet 911 and the washing water flowing into the washing water pipe 93 flows into the washing and milking outlet 931 And the flow path 933 into the mixing chamber 953.

In this case, since the washing water supplied to the washing and milking outlet 931 is supplied to the mixing chamber 953 along the spiral channel 933, And the detergent solution supplied through the solution outlet 911 joins the washing water forming the vortex so that the washing water and the detergent solution are mixed in the mixing chamber.

In addition, since the washing water flowing into the mixing chamber has a predetermined water pressure, the mixed liquid can be injected into the drum through the discharge port 955 of the cap 95.

Hereinafter, the operation of the washing apparatus of the present invention will be described with reference to FIGS. 1 and 2. FIG.

First, a door (not shown) provided in the cabinet 1 is opened, laundry is put into the drum 3, and then the door is closed.

The detergent supplied to the detergent box 413 provided on the water supply channel 41 is supplied into the tub 2 together with the wash water when the wash water flows into the water supply channel 41 from the water supply source.

The washing water and the detergent supplied to the tub 2 are circulated through the pump 6 and the detergent solution flow path 45. The detergent is completely dissolved in the washing water in this process, The solution is stored.

At this time, the washing water and the detergent stored in the tub 2 are supplied to the pump 6 through the discharge passage 43, and the valve 5 opens only the first outlet 51, The washing water and the detergent may be controlled to flow into the detergent dissolving channel 45.

The pump 6 then supplies the detergent solution stored in the tub 2 to the dissolving liquid pipe 72 of the detergent spray nozzle 7 through the pump 6 and the solution flow path 46. In this case, the valve 5 is preferably controlled to open only the third outflow port 54 so that the detergent solution pressurized by the pump can be supplied only to the solution flow path 46.

On the other hand, the detergent solution is supplied to the solution flow path 46 and the washing water is supplied to the spray water supply flow path 42 to flow wash water to the washing water pipe 71 of the detergent spray nozzle 7.

Therefore, the detergent solution flowing into the dissolving liquid pipe 72 is mixed with the washing water supplied to the washing water pipe 71 and discharged to the outlet 73.

Thereafter, the mixture of the washing water and the detergent solution sprayed from the outlet 73 collides with the inclined pieces 741 and is uniformly sprayed onto the washing water stored in the drum.

After the detergent solution is sprayed to the washing water for a predetermined time, washing of the laundry is performed while the drum rotates. When the full-scale washing is started, the circulating flow path 44 circulates and supplies the washing water to the upper portion of the laundry stored in the drum 3.

In this case, it is preferable that the valve 5 is controlled so that the wash water pressurized by the pump can be introduced into only the circulation flow path 44 by opening only the second outlet 53.

The washing water stored in the tub is discharged to the outside of the cabinet 1 through the discharge passage 43, the pump 6, and the drain passage 8. In this case, the switch valve (V) should be controlled so that the wash water can flow into the drainage passage (8).

The operation of the washing apparatus including the detergent spraying nozzle 9 shown in FIG. 3 is the same as the above-described process, and a detailed description thereof will be omitted.

4 is a conceptual diagram showing an embodiment for spraying the detergent solution onto the laundry using the water supply channel 41 without the jet water supply flow path 42. [

According to the present embodiment, the solution flow path 46 can be connected to the water supply flow path 41. The water supply channel 41 serves to supply the washing water and the detergent to the tub 2 at the initial stage of washing. However, once the detergent is supplied, only the washing water can be supplied.

Therefore, this embodiment can be provided to supply the detergent solution dissolved through the detergent solution passage 45 to the washing water flowing in the water supply passage 41 through the solution passage 46.

In this case, detergent spray nozzles 7 and 9 shown in FIG. 2 or 3 can be provided at the end of the water supply channel 41, and the wash water pipes 71 and 93 of the detergent spray nozzles 7 and 9 And connected to the water supply channel 71.

According to the above-described embodiment, since the jetting water supply flow path 42 shown in Fig. 1 is unnecessary, there is an effect that the structure of the washing device capable of jetting the detergent solution is simplified.

Referring to FIGS. 4 and 2, in the washing process of the washing machine according to the present embodiment, laundry is introduced into the drum 3 from the water supply source along the water supply channel 41 .

Since the detergent box 413 is provided on the water supply channel 41, the detergent may be supplied into the tub 2 together with the wash water.

The washing water and the detergent supplied to the tub 2 are circulated through the pump 6 and the detergent solution flow path 45. The detergent is completely dissolved in the washing water in this process, The solution is stored.

The washing water and the detergent stored in the tub 2 are supplied to the pump 6 through the discharge passage 43. The valve 5 opens only the first outlet 52, So that the washing water and the detergent can be introduced into the detergent dissolving passage 45.

The pump 6 then supplies the detergent solution stored in the tub 2 to the detergent spray nozzle 7 connected to the water supply flow path 41 through the pump 6 and the solution flow path 46 . In this case, the valve 5 is preferably controlled to open only the third outflow port 54 so that the detergent solution pressurized by the pump can be supplied only to the solution flow path 46.

On the other hand, the detergent solution is supplied to the solution passage 46 and the wash water is supplied to the water supply passage 41 again.

The washing water supplied to the water supply flow path 41 flows into the washing water pipe 71 of the detergent spray nozzle 7 via the detergent box 413 but since the detergent box 413 is in an empty state, It will flow into the water pipe 71.

The detergent solution flowing into the solution pipe 72 flows into the washing water pipe 71 when the washing water flowing into the washing water pipe 71 exits the detergent spray nozzle 7 through the washing and milking water outlet 713 and the outlet port 73. [ Water.

The mixture of washing water and detergent solution sprayed from the outlet 73 collides with the inclined pieces 741 and is uniformly sprayed onto the washing water stored in the drum. The subsequent process is the same as in the embodiment shown in FIG. 1 A detailed description will be omitted.

The present invention may be embodied in various forms without departing from the scope of the invention. Accordingly, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

1 is a conceptual diagram of a washing machine according to an embodiment of the present invention.

2 is a conceptual view of a detergent spray nozzle.

3 is a conceptual diagram of another embodiment of a detergent spray nozzle.

4 is a conceptual diagram of a washing machine according to another embodiment of the present invention.

DESCRIPTION OF REFERENCE NUMERALS

Cabinet: 1 tub: 2 drums: 3

Water supply channel: 41 injection water supply channel: 42 Emission channel: 43

Circulating Euro: 44 Detergent Dissolution Dissolution: 45 Dissolution Dissolution: 46

Valve: 5 Pump: 6 Detergent spray nozzle: 7, 9

Drainage Euro: 8

Claims (11)

A tub for storing washing water; A drum rotatably installed in the tub, into which laundry is introduced; A water supply device for supplying washing water to the tub via a detergent box storing the detergent; A pump communicating with the tub, and a detergent solution passage for supplying detergent and washing water pressurized by the pump to the tub, thereby dissolving the detergent supplied to the tub in the washing water to form a detergent solution Device; A spray device for supplying washing water to the tub, and spraying the detergent solution into the drum using the water pressure of washing water; And a solution flow path for supplying the detergent solution to the spray device, And one end of the detergent solution passage communicates with a lower portion of the tub. delete The method according to claim 1, Wherein the water supply device includes a water supply channel connected to the tub via a detergent box, Wherein the spray device comprises a detergent spray nozzle provided at an end of the water supply channel. The method of claim 3, Wherein one side of the solution passage is connected to the pump and the other side is connected to the detergent spray nozzle. 5. The method of claim 4, Further comprising a valve communicating with the pump and selectively opening the solution passage and the solution passage. The method according to claim 1, The injection device And a detergent spray nozzle provided at an end of the spray water supply flow path. The method according to claim 6, Wherein one side of the solution passage is connected to the pump and the other side is connected to the detergent spray nozzle. 8. The method of claim 7, And a valve communicating with the pump and selectively opening the solution passage or the solution passage. 8. The method of claim 7, The detergent spray nozzle A washing water pipe including a washing and milking outlet through which the spray water passage is connected and the wash water is discharged, A dissolving liquid pipe connected to the dissolving liquid flow path and surrounding the outer circumferential surface of the washing water pipe, And an outlet provided at an end of the dissolution liquid pipe, Wherein the washing and milking outlet is provided inside the dissolving liquid pipe. 8. The method of claim 7, The detergent spray nozzle A dissolution liquid pipe connected to the dissolution liquid flow path and having a dissolution liquid outflow port, A washing water pipe connected to the injection water supply flow path and surrounding the dissolving liquid pipe, And a cap coupled to an outer circumferential surface of the washing water pipe and having an outlet communicating with the solution outlet, Wherein the washing water pipe further comprises a flow path spirally arranged toward the discharge port. 11. The method of claim 10, Wherein at least two flow paths are provided.

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