KR20110062459A - Washing machine - Google Patents

Abstract

PURPOSE: A laundry processor is provided to inject washing water toward the inner surface of a front door. CONSTITUTION: A laundry processor includes a cabinet, a front door, and a door injection portion(110). A laundry incoming and outgoing hole is formed in the front of the cabinet. The front door opens and closes the laundry incoming and outgoing hole. The door injection portion injects a part of the washing water toward the inner surface of the front door. The door injection portion is contiguous to a drum injection portion(107). The door injection portion cleanly washes the inner surface of the front door.

Description

Laundry processing machine {Washing machine}

The present invention relates to a laundry treatment machine.

In general, a laundry treatment apparatus refers to an apparatus for washing or drying laundry. On the other hand, in the treatment of the laundry using the laundry treatment machine, by circulating and spraying the washing water flowing from the outside.

On the other hand, the laundry is put into or taken out by the user through the laundry access hole formed in the laundry processing device, and recently, the front door for opening and closing the laundry access hole so that the user can view the laundry process from the outside After forming the transparent material is configured to directly see whether the laundry process proceeds smoothly.

However, the conventional laundry treatment machine has a problem in that the washing water or the laundry in the process of washing touches the inner surface of the front door, resulting in splatters on the front door, thereby degrading the appearance.

In order to solve this problem, the conventional user can not only solve the problem by wiping the inner surface after opening the front door directly, the user's inconvenience is also expected.

The present invention is configured to spray a portion of the wash water supplied to the inside of the washing tank at the end of the washing cycle or before the dehydration stroke in which the general washing is completed, the laundry treatment apparatus that can improve the appearance of the product It is about.

Laundry processing apparatus according to the present invention, the front door is provided with a cabinet having a laundry entrance hole, the door rotatably provided to open and close the laundry access hole, the door for spraying a portion of the wash water toward the inner surface of the front door It includes an injection unit.

The door spraying unit may be disposed above the rear side of the front door and spray washing water diagonally toward an upper end of an inner surface of the front door.

The door spraying unit may spray the washing water toward the front door before the washing stroke and the rinsing stroke are completed during the washing process of the laundry treatment machine.

In addition, a water supply valve connected to an external hose to regulate the water supplied through the external hose, a first water supply hose for guiding the water passing through the water supply valve to the detergent box, and steam the water passing through the water supply valve The apparatus may further include a water supply device configured to guide the generating means to a second water supply hose, wherein the door injection unit may be supplied with wash water through at least one of the first water supply hose and the second water supply hose.

In addition, the first water supply hose may include a branched hose so that the washing water is directly supplied to the door sprayer without passing through the detergent box, and the door sprayer may be supplied with the wash water through the branch hose. .

The apparatus may further include a tub disposed in the interior space of the cabinet and configured to store wash water supplied from the outside, and a gasket provided between the cabinet and the tub to prevent leakage, and the door sprayer may be disposed on the gasket. Can be.

In addition, the door injection unit is installed on the gasket, the plurality of cylindrical portions formed to be exposed to the upper portion of the gasket, and each of the plurality of water supply hoses extending from each of the upper end of the plurality of cylindrical portions arranged to supply wash water It may be provided in any one of the plurality of nozzles of the connecting nozzle device including a plurality of hose coupling portion formed and a plurality of nozzles provided on the lower end of the plurality of cylindrical portions formed to spray the washing water.

The apparatus may further include washing water circulation means for pumping the washing water stored in the inner space of the cabinet and circulating the washing water to the inner space of the cabinet, wherein the washing water circulation means is stored under the inner space of the cabinet. A circulation pump for pumping water and a circulation hose for guiding the washing water pumped by the circulation pump to a drum disposed in the inner space of the cabinet, wherein the door injection unit receives the washing water through the circulation hose. Can be.

The plurality of hose coupling parts may be connected to a branch hose branched from the first water supply hose, a steam hose connected to the steam generating means, and a circulation hose connected to the washing water circulation means, and the door sprayer The nozzle unit may be provided in the nozzle unit that is directly below the branch hose.

The door ejection unit may be formed in a separate connecting nozzle device installed in the gasket corresponding to one side of the connecting nozzle device.

In addition, the nozzle portion corresponding to the door injection portion, may be formed to be opened toward the front door side, the width gradually expands.

The control method of the laundry treatment machine according to the present invention, when the set washing course signal is input, the first water supply step of supplying the wash water into the tub disposed in the interior space of the cabinet, and after the first water supply step rotates inside the tub A first drum rotating step of rotating the drum at a low speed so that the laundry disposed therein can be lifted and dropped by a drum disposed therein; and the water stored in the tub after the first drum rotating step A first drainage step of discharging the water, a second drainage step of resupplying the wash water into the tub after the first drainage step, and a rotation of the drum attached to the inner circumferential surface of the drum after the second drainage step A second drum rotating step of rotating at a high speed, and a second draining step of discharging the wash water stored in the tub to the outside after the second drum rotating step; And, a door-cleaning step of the first towards the inner surface of the front door for opening and closing the laundry entrance hole and out the laundry from the first supplying of water to a particular zone of the second multiple phase spraying the laundry.

In addition, the door cleaning step may be performed after the end of the first water supply step and the second water supply step, respectively, before the start of the first drum rotation step and the second drum rotation step.

In addition, the door cleaning step may be performed in at least one specific section of the first drum rotation step and before the start of the second drum rotation step after the end of the first water supply step and the second water supply step, respectively. have.

In addition, the door cleaning step may be performed after the end of the first drum rotation step and the second drum rotation step, respectively, before the start of the first drain step and the second drain step.

In addition, the door cleaning step may be performed in at least one particular section of the first and second drainage step after the end of the first drum rotation step and the second drum rotation step, respectively. have.

The door cleaning step may be performed simultaneously with the first water supply step and the second water supply step before the first water supply step and the second water supply step are completed.

The door cleaning step may be performed simultaneously with the first drum rotating step and the second drum rotating step before the first drum rotating step and the second drum rotating step are completed.

The laundry treatment device according to the present invention has an effect of maintaining the cleanness of the front door by spraying the washing water, which is an external source, toward the inner surface of the front door.

In addition, the laundry treatment machine according to the present invention, before the washing stroke or the rinsing stroke is completed during the washing process using a door spray unit to spray the washing water toward the front door, the user is inconvenient to clean the front door directly Relieves

Hereinafter, a preferred embodiment of a laundry treatment machine according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the appearance of the laundry treatment machine according to the present invention, Figure 2 is a cross-sectional view taken along line AA of Figure 1, Figure 3 is a perspective view showing a preferred embodiment of the laundry treatment machine according to the present invention 4 is a front view showing an embodiment of a connecting nozzle device installed in a gasket of the configuration of Figure 3, Figure 5 is a perspective view showing a connecting nozzle device of the configuration of Figure 4, Figure 6 is a line BB of Figure 5 It is a cross section taken according to.

1 to 2, the laundry treatment machine 1 according to an exemplary embodiment of the present invention includes a cabinet 10 having an internal space and an internal space of the cabinet 10 and supplied from the outside. Tub 21 for storing the wash water to be stored, the drum 22 is disposed inside the tub 21, the laundry is introduced, the drive unit 55 for supplying rotational force to the drum 22, and from an external water source A water supply device 60 for supplying the supplied wash water, a drainage device 70 for draining the wash water in the tub 21, and the wash water stored in the lower portion of the tub 21 are pumped again. Washing water circulation means 80 for circulating and supplying the inside of the 21 and steam generating means for supplying the washing water supplied from the water supply device 60 to the inside of the tub 21 by heating with steam of high temperature / high pressure ( 90).

The cabinet 10 may form an exterior of a laundry treatment device 1, a cabinet body 11 having an open front and an upper surface, and a laundry access hole 19 formed to allow laundry to enter and exit the cabinet body. Front cover 12 coupled to the front of the 11, the control panel 15 provided on the upper side of the front cover 12 to provide a user interface, and the tower provided on the upper side of the cabinet body (11) Cover 16.

The front cover 12 is rotatably provided with a front door 13 for opening and closing the laundry access hole 19. Some of the front door 13 includes a transparent part 14 formed of a transparent material so that a user can view the inside of the drum 22 from the outside.

In addition, the control panel 15 includes a display unit 17 for displaying various state information of the laundry treatment machine 1, and an input unit for receiving various control commands such as a washing course, an operation time and a reservation for each stroke from a user. 18 is provided.

The laundry course includes a lingerie / wool course, a boiling course, a speed wash course, a functional clothing course, and a quiet course depending on the type and function of the laundry. The operation of the laundry treatment machine 1 according to the present invention is largely divided into a washing stroke, a rinsing stroke, and a dewatering stroke, and water, washing, rinsing, draining, dehydrating, or drying are performed in each stroke.

Detergent box 33 is a detergent such as laundry detergent, fabric softener or bleach is accommodated. The detergent box 33 is preferably provided to be pulled out on the front of the front cover (12). The detergent in the detergent box 33 is mixed with the washing water when the washing water is supplied and introduced into the tub 21. The detergent box 33 includes a water supply bellows 66 disposed to communicate with the inside of the tub 21 so that the washing water mixed with the detergent in the detergent box 33 is guided into the tub 21.

On the other hand, the drainage device 70, a drain bellows 71 for guiding the wash water drained from the tub 21 to the circulation pump 81 of the wash water circulation means 80 which will be described later, and the circulation pump It consists of a drain hose 72 for draining the wash water pumped in the 81 to the outside of the washing machine.

The tub 21 is suspended from the top cover 16 by a spring so as to damp vibration generated when the drum 22 rotates, and is supported by a damper (not shown). The drum 22 is rotated by the driving unit, and may be provided with a lifter 25 for lifting in order to forcibly rotate the laundry during the rotation.

1 to 3, a gasket 53 is provided between the cabinet 10 and the tub 21. One side of the gasket 53 is coupled to the cabinet 10, and the other side of the gasket 53 is coupled along the circumference of the opened front surface of the tub 21. Thus, the wash water stored in the tub 21 is prevented from leaking between the tub 21 and the cabinet 10. In addition, the gasket 53 is made of a flexible material, and is formed to have a wrinkle along its circumference to cushion the vibration of the tub 21.

The water supply device 60 is connected to an external hose 61 to supply a water supply valve 62 to control the water supplied through the external hose 61 and the water passing through the water supply valve 62 in the detergent box. A first water supply hose (63a) for guiding to (33) and a second water supply hose (63b) for guiding water passing through the water supply valve (62) to the steam generating means (90).

Here, the first water supply hose 63a may be provided with a branch hose 65 which is branched in the middle and connected directly to the connecting nozzle apparatus 100 and 200 which will be described later without passing through the detergent box 33. . The branch hose 65 is connected to the Y-shaped pipe 64 to one side of the flow path for supplying water to the detergent box 33 (hereinafter referred to as the first flow path for convenience), the other side of the connecting An external water source flow path (hereinafter, referred to as a second flow path for convenience) to supply water to the nozzle device 100 or 200 may be used.

The Y-shaped tube 64 is a branch panel not shown to separate the water flowing in the inlet portion in which the water flows from the first water supply hose (63a) divided into the first flow path and the second flow path, respectively It can be placed inside.

In this case, since the branch panel needs more water toward the first flow path flowing into the detergent box 33 (for dissolving detergent, etc.), the cross-sectional area of the first flow path is large, and the second flow path The cross-sectional area of the side is preferably formed to be small.

As such, the water supplied along the first flow path supplied to the detergent box 33 is mixed with detergent or fabric softener contained in the detergent box 33 and used as washing water for a washing stroke. The water supplied along the second flow path supplied to the apparatus 100, 200 can be used as wash water for the rinsing stroke with relatively clean water supplied directly to the drum 22 directly from an external water source.

The washing water circulating means 80 is a circulation pump 81 for pumping the wash water stored in the tub 21 and the washing water pumped from the circulation pump 81 to the drum 22 side. The circulation hose 82 is included. Here, the circulation hose 82 in which the washing water pumped from the circulation pump 81 is guided to the drum 22 side may be connected to a connecting nozzle device 100 and 200 to be described later, and the circulation water flow path at this time is For convenience, it will be referred to as the third euro.

The steam generating means 90 is a steam generator 91 installed between the tub 21 and the water supply device 60, and steam for guiding the steam generated by the steam generator 91 to the drum 22 side. Hose 92. Here, as described above, the steam hose 92 is connected to the steam generator 91 and the connecting nozzle apparatus 100 according to an embodiment, which will be referred to as a fourth flow path for convenience. Although not shown in the steam generator 91 may be a built-in heater for heating the wash water supplied.

3 to 6, the gasket 53 includes the branch hose 65 of the external water flow passage corresponding to the second to fourth flow passages, and the circulation water flow passage. The circulation hose 82 of the third flow path and the steam hose 92 of the steam flow path are respectively coupled to each other through the branch hose 65, the circulation hose 82, and the steam hose 92. There is provided a connecting nozzle device 100 for spraying external water source and circulating water and steam. Hereinafter, for convenience of description, the connecting nozzle device 100 is defined as a connecting nozzle device according to an exemplary embodiment for the purpose of distinguishing it from a separate connecting nozzle device 200 which will be described later.

The upper portion of the gasket 53 is formed so that the boss portion 53a protrudes outward so that the connecting nozzle apparatus 100 is connected. The connecting nozzle device 100 is installed to penetrate through the boss portion 53a.

More specifically, the connecting nozzle apparatus 100 is formed to be exposed to the upper portion of the gasket 53 through the boss portion 53a when installed in the gasket 53, as shown in FIG. 5. A plurality of cylindrical portions 101, 102, 103 and upper ends of the plurality of cylindrical portions 101, 102, 103, respectively, so that the branch hose 65 and the circulation hose 82 or the A plurality of hose coupling portions 104, 105, 106 formed to be coupled to the steam hose 92 and the lower ends of the plurality of cylindrical portions 101, 102, 103 are provided to connect the gasket ( 53 includes a plurality of nozzles 109 formed to simultaneously spray at least one of washing water and steam or washing water and steam.

Here, the cylindrical portions 101, 102, 103, the hose coupling portion 104, 105, 106 and the nozzle portion 109 may be provided separately separated one by one, but may be provided In the present invention, as described above, the hose coupling portion 104, 105, 106 is provided with three so that the branch hose 65, the circulation hose 82, and the steam hose 92 is coupled to The description will be limited.

Each of the plurality of cylindrical portions 101, 102, 103 is provided with hook portions 101a, 102a, 103a to be engaged downward from the upper portion of the gasket 53. The hook portions 101a, 102a, 103a are ribs protruding radially along the circumferential direction from the circumferential surfaces of the cylindrical portions 101, 102, 103.

In addition, each of the plurality of cylindrical portions 101, 102, 103 is provided with a fitting protrusion 103b protruding radially toward the gasket 53, and the boss portion 53a of the gasket 53. In the fitting protrusion (103b) is fitted a fitting hole (not shown) is formed.

The plurality of hose coupling parts 104, 105, and 106 are formed to extend in the longitudinal direction from the cylindrical parts 101, 102, 103 so as to protrude outward from the outer circumferential surface of the gasket 53. . The plurality of hose coupling parts 104, 105 and 106 are formed with guide ribs 104a, 105a and 106a for guiding the coupling position of the circulation hose 82 or the steam hose 92.

The guide ribs 104a, 105a, 106a are radially along the circumferential direction at the circumferential surface of the hose coupling portions 104, 105, 106, like the hook portions 101a, 102a, 103a. Is formed to protrude, it is formed to be located outside the outer circumferential surface of the gasket (53).

The branch hose 65, the circulation hose 82, and the steam hose 92 are fitted to each of the plurality of hose coupling parts 104, 105, and 106, and then clamped and fixed by the clamp 104. Can be.

Meanwhile, as illustrated in FIGS. 3 to 6, the plurality of nozzle parts 109 are directly below the respective cylindrical parts 102 and 103 to which the branch hose 65 and the circulation hose 82 are connected. And a drum spraying portion 107 formed so as to gradually expand in width and inclined downward toward the drum 22 side disposed at the rear portion, and directly below the cylindrical portion 101 to which the steam hose 92 is connected. It includes a steam injection unit 108 formed to be opened toward the drum 22 side disposed in the rear portion.

On the other hand, the connecting nozzle apparatus 100 is disposed directly below the cylindrical portion 103 to which the branch hose 65 is connected, and is connected to the branch hose 65 to wash the water to the front door 13. It further comprises a door injection unit 110 for spraying to the front disposed.

However, the door injection part 110 does not necessarily need to be disposed directly below the cylindrical part 103 to which the branch hose 65 is connected, and of the cylindrical part 102 to which the circulation hose 82 is connected. It may be arranged directly below.

The door spray unit 110, by spraying the washing water to the transparent portion 14 corresponding to the inner surface of the front door 13 to clean the inner surface of the front door 13 to clean the front door ( It plays a role of avoiding getting stuck in the inner surface of 13).

The door injection unit 110 as described above may be integrally formed with the connecting nozzle device 100. In more detail, the door injection part 110 is disposed directly below the cylindrical parts 102 and 103 to which the branch hose 65 or the circulation hose 82 is connected, and the nozzle part 109 is provided. Opening toward the front door 13 side disposed in the front portion, it may be formed to be inclined downward so that the width gradually expands. That is, the door injection unit 110 may be formed to be adjacent to the drum injection unit 107, and may be formed to face the drum injection unit 107 about the lower surface of the center of the cylindrical unit 103. .

As such, when the door injection unit 110 is integrally formed with the connecting nozzle device 100, the drum injection unit disposed directly below either the branch hose 65 or the circulation hose 82. The washing water supplied from one of the branch hoses 65 is branched from the 107 and the door sprayer 110, and the drum 22 is directed from the drum sprayer 107 toward the drum 22. Washing water is sprayed to uniformly wet the laundry into the inside, and the washing water is sprayed evenly toward the inner surface of the front door 13 from the door injection unit (110).

Here, the door injection unit 110 is preferably arranged to evenly spray all the inner surface of the front door 13, when the supply pressure of the wash water flowing into the door injection unit 110 is low Since it is difficult to evenly spray the entire inner surface of the front door 13, it is preferable to be arranged to be sprayed in an oblique direction toward the upper end of the inner surface of the front door (13). When the washing water is sprayed from the door spraying unit 110 toward the upper end of the inner surface of the front door 13, the sprayed washing water flows downward from the upper end of the inner surface of the front door 13, and the front door ( The inner surface of 13) is evenly washed.

FIG. 7 is a perspective view illustrating another embodiment 200 of the connecting nozzle device in the configuration of FIG. 3.

So far, an embodiment 100 of the connecting nozzle apparatus has been described in detail. However, the door injection unit 110 is not necessarily integrally formed as part of the nozzle unit 109 in the connecting nozzle device 100. That is, as shown in FIG. 7, the door injection unit 110 is a connecting nozzle device 200 separate from the connecting nozzle device 100 (hereinafter, a connecting nozzle device according to another embodiment for convenience of description). Molded), and may be disposed on one side of the connecting nozzle apparatus 100 according to an embodiment.

At this time, the original connecting nozzle device 100 is formed with one cylindrical portion 101, 102, 103 to which the branch hose 65, the circulation hose 82 and the steam hose 92 are connected, respectively. The nozzle unit 109 disposed below the nozzle unit 109 is also formed with a number corresponding thereto, but in the connecting nozzle apparatus 200 according to another embodiment, the door injection unit 110 may be formed of the nozzle unit 109. It does not need to be integrally formed as part.

In addition, in addition to the connecting nozzle apparatus 100 according to an embodiment, in the connecting nozzle apparatus 200 according to another embodiment, the nozzle unit 109 directly serves as the door injection unit 110, One of the branch hose 65 or the circulation hose 82 may be directly connected to the hose coupling part 206 corresponding to the upper part of the door injection part 110. That is, the door injection part 110 corresponds to the nozzle part 109 of the connecting nozzle apparatus 200 according to another embodiment, which is separately formed, and includes one cylindrical part 203 and one nozzle part ( 109, and the nozzle unit 109 may be formed to have the same shape as that of the door injection unit 110 formed in the connecting nozzle device 100 according to an embodiment.

However, the nozzle unit 109 is not necessarily formed to be opened toward the front door 13 side as the door injection unit 110. That is, as shown in FIG. 7, the nozzle unit 109 serves as a general drum spraying unit 107 for spraying toward the drum 22 side like the connecting nozzle apparatus 100 according to the above-described embodiment. In addition to the above, a nozzle part may serve as a door injection part 110 opened toward the front door 13 side facing the nozzle part 109.

Reference numerals 203a and 203b are hook portions and fitting protrusions that perform the same functions as the connecting nozzle apparatus 100 according to an embodiment, and reference numeral 206a refers to the connecting nozzle apparatus 100 according to an embodiment. Guide ribs to perform the same function.

When the connecting nozzle apparatus 200 is formed as described above, when the washing water, which is an external water source from the water supply device 60, or the circulating water is supplied from the washing water circulation means 80, by the drum sprayer 107. Washing water or circulating water is sprayed to the drum 22 side, and washing water or circulating water is sprayed to the front door 13 by the door sprayer 110, and water and front door cleaning can be performed at the same time. There is an advantage.

On the other hand, the laundry treatment machine 1 according to the present invention, further comprises a control unit not shown for controlling the operation of the water supply valve (62).

The controller is configured to supply the water such that water, which is an external water source, is supplied for a predetermined time through the first water supply hose 63a before the washing stroke is finished and the rinsing stroke is finished in the laundry course of the laundry treatment machine 1. The operation of the valve 62 can be controlled.

In addition, the control unit, the circulation pump 81 so that the circulation water is circulated for a predetermined time through the circulation hose 82 before the end of the washing stroke and the end of the rinsing cycle of the washing course of the laundry treatment machine (1) ) Can be controlled.

Referring to the accompanying drawings the control process of the laundry treatment machine 1 according to the present invention configured as described above in detail as follows.

8 is a block diagram showing a control process according to a preferred embodiment of the control method of the laundry treatment machine 1 according to the present invention, Figure 9 is another embodiment of a control method of the laundry treatment machine 1 according to the present invention A block diagram showing a control process according to an example.

As shown in Figure 8, first, the control method of the laundry treatment machine according to the present invention according to a preferred embodiment, the user using the control panel 15 to wash the laundry treatment according to the present invention When the device 1 is operated, operation starts with a preset washing course according to a value input by a user.

In general, in the laundry process of the laundry treatment machine, when the washing course signal is input, the first water supply step S10 of supplying the washing water into the tub 21 for washing the laundry into the interior space of the cabinet 10 is performed. After the first water supply step (S10) is carried out a first drum rotation step (S20) to rotate at a low speed so that the laundry can be lifted and dropped the drum 22, the laundry is accommodated, After the first drum rotation step S20, a first drainage step S30 for discharging water stored in the tub 21 to the outside is performed, and after the first drainage step S30, the tub 21 is inserted into the tub 21. A second water supply step S40 for re-supplying the washing water is performed, and after the second water supply step S40, the drum 22 is rotated at a high speed so that the laundry adheres to the inner circumferential surface of the drum 22 and rotates. The second drum rotation step (S50) is carried out, the second drum After the step (S50) and a second drain step (S60) of re-discharge the number of washing water storage within the tub 21 to the outside it is carried out. Of course, it is preferable that the second drainage step S60 in which the drainage device 70 is operated in all sections of the second drum rotation step S50 is simultaneously performed.

The wash water supplied into the tub 21 may be washing water mixed with a detergent or fabric softener while passing through the detergent box 33 by the water supply device 60 from an external water source, and the water supply device 60. By a) may be washing water that is a relatively clean external water source flowing directly into the tub 21 without passing through the detergent box 33, by the washing water circulation means (80) the circulation hose ( 82) may be the circulating water flowing through.

Here, the first drum rotation step (S20) is a step of rotating the drum 22 at a low speed, as described above, in general, when the drum 22 is rotated laundry contained therein is a low speed It is concentrated on the lower surface of the drum 22 due to the rotation, and moves upward so as to fall downward by its own weight, thereby forcibly rotating the laundry to be washed while making friction between the laundry or the laundry and the drum 22. Refers to the control section.

In particular, in the section implemented by the first drum rotation step (S20), the laundry is mixed with the laundry water in a state where the detergent and the fabric softener is mixed, it can be seen as a section in which a general washing stroke and rinsing stroke is performed.

On the other hand, the second drum rotation step (S50) is carried out after the first drum rotation step (S20), as in the first drum rotation step (S20), although the implementation step for rotating the drum 22, There is a difference in the rotational speed of the drum 22. That is, unlike the first drum rotation step S20, the second drum rotation step S50 may include laundry contained in the drum 22 when the drum 22 is rotated. It is rotated at a high speed instead of a low speed so as to be continuously rotated by being attached to an inner circumferential surface. It is suitable for dehydration stroke.

According to the control method of the laundry treatment machine according to the present invention, as shown in FIGS. 8 and 9, the front door 13 in any particular section of the first water supply step S10 to the second water draining step S60. The door cleaning step (S100) for spraying the washing water toward the inner surface (transparent portion, 14) of the).

The door cleaning step (S100) is performed by spraying the washing water toward the inner surface 14 of the front door 13 so that the inner surface of the front door 13 can be kept clean and clean. to be.

Here, the door cleaning step S100 may be performed for a predetermined time after the completion of any one of the first water supply step 10 and the second water supply step 40, as described with reference to FIG. It may be performed for a predetermined time after the end of one drum rotation step S20. Of course, the door cleaning step S50 may be performed both after the end of the first water supply step S10 and the second water supply step 40 and after the end of the first drum rotation step S20. Of course. Here, the first water supply step (S10) and the second water supply step 40 is because the wash water is supplied through the nozzle unit 103, so it is not necessary to distinguish each end time, the first water supply step It means that the door cleaning step (S100) is performed at the same time (S10) and the second water supply step (S40).

More specifically, before the start of the first drum rotation step S20 and the second drum rotation step S50 which are continued after the end of the first water supply step S10 and the second water supply step S40, respectively. The door cleaning step (S100) may be performed by placing a specific section that is performed in time.

In addition, a predetermined time is performed before the start of the first drainage step S30 and the second drainage step S60, respectively, following the end of the first drum rotation step S20 and the second drum rotation step S50. The door cleaning step (S100) may be performed in at least one specific section by placing a specific section, and the door cleaning step (S100) may be performed on all of the specific sections.

However, the door cleaning step S100 is not necessarily to be carried out in a specific section as described above. That is, as shown in FIG. 9, the door cleaning step S100 may be performed by another step corresponding to a predetermined time before the water supply step S10 ends or before the first drum rotation step S50 ends. May be performed simultaneously with at least one step of S30 and S60), and may be performed for all other steps (except S30 and S60).

As such, the control method of the laundry treatment machine according to the present invention comprises the door cleaning step (S100) of spraying the washing water toward the inner surface of the front door during the general washing course set by the user, The transparent part of the front door, which can view the inside of the drum from the outside, is kept clean, and the visibility is increased, thereby improving the user's emotional quality.

Or more, with reference to the accompanying drawings, a preferred embodiment of the laundry treatment machine according to the present invention was described in detail. However, embodiments of the present invention are not limited thereto, and it is obvious that various modifications or other embodiments falling within the scope equivalent to the present invention may be implemented by those skilled in the art. Therefore, the true scope of the present invention will be defined by the claims that follow.

1 is a perspective view showing the appearance of a laundry treatment machine according to the present invention,

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

Figure 3 is a perspective view showing a preferred embodiment of the laundry treatment machine according to the present invention,

4 is a front view showing a connecting nozzle apparatus according to an embodiment of the state installed in the gasket of the configuration of Figure 3,

5 is a perspective view showing a connecting nozzle device according to an embodiment of the configuration of FIG.

6 is a cross-sectional view taken along the line B-B of FIG.

7 is a perspective view illustrating another embodiment of a connecting nozzle device in the configuration of FIG. 3.

8 is a block diagram showing a control process according to a preferred embodiment of the control method of the laundry treatment machine according to the present invention,

9 is a block diagram showing a control process according to another embodiment of the control method of the laundry treatment machine according to the present invention.

<Explanation of symbols on main parts of the drawings>

1: laundry treatment machine 10: cabinet

11: cabinet body 12: front cover

13: front door 14: transparent part

15: Control Panel 16: Top Cover

17: display unit 18: input unit

19: laundry entrance hall 21: tub

22: drum 33: detergent box

53: gasket 60: water supply

61: external hose 62: water supply valve

63: water supply hose 63a: first water supply hose

63b: Class 2 hose 64: Y tube

65: branch hose 66: water supply bellows

70: drainage 71: drainage bellows

72: drain hose 80: washing water circulation means

81: circulation pump 82: circulation hose

90: steam generating means 91: steam generator

92: steam hose 100,200: connecting nozzle device

109: nozzle unit 110: door injection unit

S10: first water supply step S20: first drum rotation step

S30: first drainage step S40: second drainage step

S50: second drum rotation step S60: second drainage step

S100: Door cleaning step

Claims (18)

A cabinet in which laundry access holes are formed in front; A front door rotatably provided to open and close the laundry access hole; And a door sprayer configured to spray a portion of the wash water toward the inner surface of the front door. The method according to claim 1, The door injection unit, Is disposed on the rear upper side of the front door, the laundry treatment device for spraying the washing water diagonally toward the upper end of the inner surface of the front door. The method according to claim 1, The door spraying unit, the laundry treatment apparatus for spraying the washing water toward the front door before the washing stroke and the rinsing stroke is completed during the washing process of the laundry treatment machine. The method according to claim 1, A water supply valve connected to an external hose to regulate water supplied through the external hose, a first water supply hose for guiding water passing through the water supply valve to a detergent box, and water passing through the water supply valve Further comprising a water supply device composed of a second water supply hose to guide to, The door spraying unit, the laundry treatment apparatus receives the washing water through at least one of the first water supply hose and the second water supply hose. The method according to claim 4, The first water supply hose includes a branch hose branched so that the washing water is directly supplied to the door injection unit without passing through the detergent box. The door spraying unit, the laundry treatment machine receives the washing water through the branch hose. The method according to claim 4, A tub disposed in an inner space of the cabinet and storing wash water supplied from the outside; It further comprises a gasket provided between the cabinet and the tub to prevent leakage, The door spraying unit, the laundry treatment device disposed on the gasket. The method according to claim 6, The door injection unit, A plurality of cylinders installed on the gasket and formed to be exposed to the upper portion of the gasket, and a plurality of hose coupling parts respectively formed to be coupled to a plurality of water supply hoses extending from each of the upper ends of the plurality of cylindrical parts and arranged to supply wash water; And a plurality of nozzle parts provided at a lower end of the plurality of cylindrical parts and configured to spray washing water. The method according to claim 5, Washing water circulating means for pumping the wash water stored in the internal space of the cabinet and circulating back to the internal space of the cabinet, further comprising: The wash water circulation means includes a circulation pump for pumping the wash water stored in the lower portion of the inner space of the cabinet, and a circulation hose for guiding the wash water pumped by the circulation pump to a drum disposed in the inner space of the cabinet; , The door spraying unit, the laundry treatment device receives the washing water through the circulation hose. The method according to claim 8, The plurality of hose coupling portion is connected to the branch hose branched from the first water supply hose, the steam hose connected to the steam generating means and the circulation hose connected to the wash water circulation means, respectively, The door spraying unit, the laundry treatment apparatus provided in the nozzle unit that is directly below the branch hose of the plurality of nozzle units. The method of claim 7, The door injection unit, Laundry processing apparatus formed on a separate connecting nozzle device installed on the gasket corresponding to one side of the connecting nozzle device. The method according to claim 1, The nozzle unit corresponding to the door injection unit, The laundry treatment device is opened toward the front door side, the width is gradually expanded. A first water supply step of supplying washing water into a tub disposed in an interior space of a cabinet when a set washing course signal is input; A first drum rotating step of rotating the drum at a low speed so that the laundry disposed therein is lifted and then dropped by the drum rotatably disposed in the tub after the first water supply step; A first drainage step of discharging water stored in the tub to the outside after the first drum rotation step; A second water supply step of resupplying washing water into the tub after the first draining step; A second drum rotating step of rotating the drum after the second water supply step at a high speed so that laundry is rotated attached to an inner circumferential surface of the drum; And a second drainage step of discharging the wash water stored in the tub to the outside after the second drum rotation step. And a door cleaning step of spraying the washing water toward the inner surface of the front door to open and close the laundry access hole through which the laundry enters and exits in a specific section of the first water supply step to the second draining step. . The method according to claim 12, The door cleaning step, And a control method of the laundry treatment machine performed after the end of the first water supply step and the second water supply step, respectively, before the start of the first drum rotation step and the second drum rotation step. The method according to claim 12, The door cleaning step, The control method of the laundry treatment machine is carried out in at least one specific section of the first drum rotation step and before the start of the second drum rotation step after the end of the first water supply step and the second water supply step, respectively. The method according to claim 12, The door cleaning step, And a control method of the laundry treatment machine performed after the end of the first drum rotation step and the second drum rotation step, respectively, before the first drain step and the second drain step. The method according to claim 12, The door cleaning step, The control method of the laundry treatment machine is carried out in at least one specific section of the first drum rotation step and the second drum rotation step after the end of the first drainage step and before the start of the second drainage step, respectively. The method according to claim 12, The door cleaning step, And a control method of the laundry treatment machine performed simultaneously with the first water supply step and the second water supply step before the first water supply step and the second water supply step are finished. The method according to claim 12, The door cleaning step, Laundry processing apparatus is performed at the same time as the first drum rotation step and the second drum rotation step before the end of the first drum rotation step and the second drum rotation step.

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