KR20100110716A - Washing machine - Google Patents

Abstract

PURPOSE: A washing machine is provided to reduce the water consumption since the water is directly sprayed to the laundry clinging to the inner side of an inner tub. CONSTITUTION: A washing machine comprise a cabinet, an outer tub, an inner tub(115) and a spraying nozzle(150). The cabinet forms the outer frame and its upper part is open. The outer tub is suspended in the cabinet and receives the water. The inner tub is rotatably arranged in the outer tub and receives the water. The spraying nozzle sprays the water to the bottom and the inner side of the inner tub. The spraying nozzle comprises a pipe and a spraying surface. The pipe forms a path into which the water flows. The spraying surface is twisted by a given angle to a discharge direction of the pipe. The water discharged from the pipe impinges on the spraying surface. One boundary of the sprayed water makes contact with the inner side of the inner tub and the other boundary makes contact with the bottom of the inner tub.

Description

Laundry processing machine {Washing machine}

The present invention relates to a laundry treatment apparatus, and more particularly, to a laundry treatment apparatus capable of effectively rinsing laundry by spraying the washing water toward the inner surface and the bottom of the inner tank at the same time.

In general, laundry treatment equipment uses chemical reaction between water and detergent and physical action such as friction between water and laundry to separate contaminants on clothes, bedding, etc. (hereinafter referred to as 'laundry'). Various kinds of laundry treatments, such as a washing machine, a drying device for dehydrating and drying wet laundry, a spray of heated steam to prevent allergies due to laundry, and a refresher for washing laundry simply by applying physical and chemical effects to the laundry Collectively, the device.

On the other hand, a laundry machine, which is a kind of laundry treatment machine, is classified into an agitator type, a drum type, and a pulsator type according to its structure and washing method. Such a washing apparatus washes laundry while sequentially performing washing, rinsing, and dehydrating strokes, and it is possible to perform only a predetermined stroke among the above-described strokes according to the user's choice, Washing is done by the washing method.

However, in the conventional washing apparatus, the washing water is supplied toward the bottom of the inner tank, and the laundry is wet as the supplied washing water fills the inner tank. Therefore, in order to wet all the laundry, water must be provided up to the height of the laundry, and thus there is a problem in that an excessive amount of washing water is consumed. In particular, the recent laundry treatment equipment is dehydrated while the inner tank rotates at a high speed in the middle of the washing process, and water is supplied again to rinse the laundry after dehydration, in which case the laundry is placed on the inner surface of the inner tank by the high speed rotation of the inner tank. To cling and rinse the laundry, an excessive amount of wash water was consumed because the washing water had to be watered again until the laundry was stuck. In particular, such a process is repeated intermittently during the washing process, thereby further increasing the amount of washing water consumed.

An object of the present invention is to provide a laundry treatment apparatus which sprays the washing water toward the inner side and the bottom of the inner tank at the same time, effectively wets the laundry in the inner tank, thereby improving washing and rinsing efficiency and reducing the amount of washing water consumed. It is done.

The laundry treatment apparatus of the present invention includes a cabinet having an exterior and an open top, an outer tub which is suspended in the cabinet and which wash water is accommodated, an inner tub rotatably disposed in the outer tub and in which laundry is accommodated, and a bottom and an inner tub of the inner tub. Including a spray nozzle for spraying the washing water to the side, the spray nozzle is sprayed while the washing water discharged from the inlet pipe and the washing pipe discharged from the inlet pipe forming a passage for the wash water flows, the one side boundary of the sprayed washing water It includes an injection surface disposed twisted at an angle with respect to the discharge direction of the inlet pipe so that the inner surface of the inner tank and the other boundary touches the bottom of the inner tank.

The laundry treatment machine of the present invention effectively sprays the washing water toward the inner side and the bottom of the inner tank to effectively wet the laundry, thereby improving washing performance and rinsing performance.

In addition, the laundry treatment machine of the present invention has the effect of reducing the amount of washing water consumed by spraying the washing water directly to the laundry adhering to the inner surface of the inner tank.

In addition, the laundry treatment machine of the present invention has the effect of spraying the washing water in a large area.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

1 is a side cross-sectional view of a laundry treatment machine 100 according to an embodiment of the present invention. 2 is a partial view of the laundry treatment machine 100 as viewed from above. 3 is a partial view for explaining the form of the washing water sprayed into the inner tank 115 by the injection nozzle 150. 4 is a partial view illustrating a method of rinsing laundry by the injection nozzle 150. 5 is a partial view for explaining a method in which the injection nozzle 150 is mounted on the top cover 112. 6 is a front view for explaining an injection width angle W and a rotation angle θ of the injection nozzle 150. FIG. 7 is a side cross-sectional view for describing an inclination angle V of the injection nozzle 150. 8 is a perspective view of the injection nozzle 150. Hereinafter, the present invention will be described in more detail with reference to FIGS. 1 to 8.

Referring to FIG. 1, the laundry treatment apparatus 100 forms an exterior and has a cabinet 111 having an upper opening, and a laundry (hereinafter referred to as 'foam') disposed at an upper portion of the cabinet 111 opening. A top cover 112 formed with a cloth entrance and exit for entering and exiting, a door 113 for opening and closing the cloth entrance and exit, and an outer tank that is suspended inside the cabinet 111 by the support member 117 and buffered by a damper 118 ( 122) and an inner tub 115 disposed inside the outer tub 122 to rotate about a vertical axis and accommodate a cloth. Here, the inner tank 115 is provided with a plurality of manual work 115a to allow the wash water to circulate between the outer tank 122 and the inner tank 115, and a pore access hole (h) to allow the fabric to enter and exit the upper tank 122. The outer cover 114 is formed. The bottom of the inner tank 115 is provided with a pulsator 116 to form a rotational flow, the lower side of the outer tank 122, the motor for generating a rotational force for rotating the inner tank 115 and / or the pulsator 116 ( 130 is disposed. In addition, a drain hose 142 and a drain pump 144 are provided to drain the wash water from the outer tub 122.

The top cover 112 is provided with a control panel 124 to receive a command from the user for the overall operation of the laundry treatment machine 100, the top cover 112 is provided with a detergent water supply. The detergent water supply unit includes a detergent box 134 in which detergent D is accommodated, and a detergent box 134 is retractably stored therein and wash water introduced from the water supply hose 119 via the detergent box 134. Detergent box housing 136 to form a flow path to be supplied into the 115. In the detergent box housing 136, a distribution hole 136h may be formed to distribute the washing water introduced from the water supply hose 118 to the detergent box 134.

Referring to FIG. 2, when a user sets a washing course, a washing time, and the like through the control panel 124, and the operation of the laundry treatment device 100 is started, detergent must be supplied to wash the laundry. Washing water mixed with detergent (hereinafter, 'washing water mixed with detergent' is referred to as 'detergent') via the detergent box 114 is supplied, and at the same time the inner tank 115 through the spray nozzle 150. Wash water is sprayed into the At this time, since the washing water sprayed by the spray nozzle 150 directly reaches the cloth while spreading widely, the rinsing performance is improved while reducing the amount of washing water.

Referring to FIG. 3, the washing water sprayed by the spray nozzle 150 is spread out relatively thinly and is sprayed downward while twisting at a predetermined angle. Therefore, the sprayed washing water comes into contact with the inner surface and the bottom of the inner tank 115. At this time, the boundary line (P) of the portion where the sprayed washing water and the inner tank 115 is in contact with the bottom of the inner tank 115 is formed in an oblique line to increase the spray area.

Referring to FIG. 4, washing of the cloth m is performed using a detergent during the dehydration stroke, and then, the inner tank 115 is rotated at a high speed, so that simple dehydration is performed. In the simple dehydration, the cloth m sticks to the inner surface of the inner tub 115 by the centrifugal force generated while the inner tub 115 rotates at a high speed. Conventional laundry treatment equipment is a method of watering the washing water toward the bottom of the inner tank and the washing water is filled with water soaking the cloth, so a large amount of washing water was consumed to rinse the cloth attached to the inner surface of the inner tank, Contaminated washing water used for rinsing still remains in the inner tank, which may cause the fabric to be contaminated again. Therefore, the process of draining the contaminated wash water in the inner tank and supplying clean wash water again must be repeated several times, and the amount of wash water consumed is further increased.

In order to solve the problems as described above, the laundry treatment machine 100 according to an embodiment of the present invention, the inner tank so that the wash water directly contacts the cloth (m) on the inner surface and the bottom of the inner tank 115, The washing water is sprayed toward the inner side and the bottom of 115). At this time, it is preferable that the inner tank 115 is rotated so that the washing water is evenly sprayed on the fabric. It is also possible to continuously rotate the inner tank 115 in one direction or rotate alternately in both directions.

On the other hand, the contaminated wash water after rinsing the cloth is discharged to the outer tank 122 through the hand 115a by centrifugal force, and the drainage pump 144 is operated to be drained to the outside through the drainage passage 142. Thus, recontamination of the fabric is prevented.

Referring to FIG. 5, the injection nozzle 150 may be disposed at a position close to one side of the detergent water supply units 134 and 136 provided in the top cover 112. To this end, the detergent box housing 136 may be equipped with a bracket 156 for fixing the injection nozzle 150.

3 and 6 to 8, the injection nozzle 150 is the inlet pipe 151 to form a passage through which the wash water flows, and the running direction of the wash water discharged from the inlet pipe 151 It is inclined downward, and includes an injection unit 152 formed so that the flow path cross-sectional area is gradually increased so that the wash water passing through the inlet pipe 151 is dispersed.

The injection unit 152 is formed in an approximately funnel shape so that the flow passage cross-sectional area gradually increases from the inlet end side through which the washing water is introduced through the inlet pipe 151 toward the outlet end side through which the washing water is injected.

The injection unit 152 is formed with a spray surface 152a which is sprayed while hitting the washing water discharged from the inlet pipe 151. The injection surface 152a is disposed to be twisted at an angle to face the inflow pipe 151.

The spraying surface 152a is formed to gradually widen toward the end where the washing water is sprayed. Therefore, the washing water discharged from the inlet pipe 151 toward the spray surface 152a is sprayed to form the surface S while being spread out thinly along the spray surface 152a, wherein the boundary between both sides of the sprayed washing water is The angle formed is determined by both ends of the spray surface 152a.

On the other hand, since the spraying surface 152a is disposed to be twisted at a predetermined angle to face the inflow pipe 151, the washing water is sprayed to be biased toward either one of the left or the right side, and the sprayed washing water meets the inner tank 115. The boundary P which forms an oblique line from the inner surface of the inner tank 115 to the floor is formed.

The structure in which the spray surface 152a is twisted will be described later in more detail.

On the other hand, the injection nozzle 150 may further include a reinforcing portion 155 for reinforcing the bonding strength when mounted on the tub cover 112. The reinforcement part 155 may be formed of a plate body protruding outward along the outer circumference of the inlet pipe 151. Referring to FIG. 6, the reinforcement part 155 is formed to form a plate body elongated in the horizontal direction.

Injection nozzle 150 is formed symmetrically to the left and right around the reference line (M), when viewed from the front as shown in Figure 6, so that the reference line (M) to form a predetermined angle (θ) with the vertical line (L) The center line penetrates the inlet pipe 151 in the longitudinal direction and is aligned at an angle θ.

Hereinafter, the angle θ is defined as a 'rotation angle'. Since the injection nozzle 150 is aligned in a state in which the spray nozzle 150 is rotated at an angle θ with the vertical line L, the washing water reaching the inner tank 115 is disposed at the inner surface of the inner tank 115 as illustrated in FIG. 3. Proceed diagonally to form a boundary line (P) to the bottom. Boundary line (P) is a boundary line formed while forming the surface (S) and the washing water sprayed meet the inner surface of the inner tank (115).

On the other hand, the upper surface 152a of the injection unit 152 is formed to form a predetermined angle (V) with the vertical line (L). Hereinafter, the predetermined angle V is defined as the 'tilt angle'. That is, the smaller the inclination angle (V) is the washing water will be sprayed downward. In addition, the smaller the inclination angle (V), the greater the impact the washing water discharged from the inlet pipe 151 receives from the spray surface 152a, and the more the washing water will be sprayed while spreading.

On the other hand, the width of the wash water sprayed by the injection nozzle 150 is determined by the angle (W in Fig. 6) formed by both side boundaries (w1, w2) forming the width of the flow path formed by the inner surface of the injection unit 152 All. Hereinafter, the angle W is defined as 'injection width angle'. The spray width angle may be determined by both ends of the spray surface 152a on which the wash water collides.

The inlet pipe 151 is formed to decrease the inner diameter toward the outlet end 151b side discharged to the injection unit 152 from the inlet end 151a side through which the wash water flows. Referring to FIG. 7, the inner diameter of the inlet end 151a is d1, and the inner diameter of the outlet end 151b is represented by d2, where d1> d2. That is, since the diameter of the flow path tube 151 gradually decreases from the inlet end 151a to the outlet end 151b, the flow rate of the washing water flowing into the spraying unit 152 increases and the spraying force is improved.

Meanwhile, depending on the flow rate flowing into the inlet pipe 151, the washing water discharged from the inlet pipe 151 forms a predetermined angle with the spray surface 152a and the spray surface 152a, and the lower portion of the spray unit 152. It is also possible to be sprayed along the lower surface 152b, which in this case, the spray thickness of the wash water will be determined by the angle T between the spray surface 152a and the lower surface 152b.

Laundry treatment device 100 according to an embodiment of the present invention sprays the washing water toward the inner surface and the bottom of the inner tank 115, and the boundary line formed while the sprayed washing water and the inner tank 115 meet the diagonal line To achieve this, the rotation angle θ, the injection width angle W, and the tilt angle V are determined. In this embodiment, W forms an obtuse angle, and V and θ form an acute angle.

Due to the characteristics of the spray nozzles 150 arranged to have an inclination angle V and a rotation angle θ, the spray surface 152a is disposed to be twisted to face the inlet pipe 151, and thus the inlet pipe 151 Washing water discharged from the water hits the spray surface (152a) while being refracted downward by the tilt angle (V) is injected to the bottom of the inner tank 115, the left and right of the inner tank 115 by the rotation angle (θ) It is sprayed while being biased toward any one of the sides to contact the inner surface of the inner tank 115.

On the other hand, in order to allow a larger amount of washing water to be sprayed on the inner surface of the inner tank 115, it is preferable to rotate the spray nozzle 150 to be mounted on the top cover 112 so that the value of θ becomes larger. To make the washing water sprayed thinly in the width direction, it is preferable to form the spray surface 152a so that the T value becomes large and the V value becomes small.

9 illustrates a state in which the washing water is sprayed when the inner tank 115 is empty. 10 illustrates a state in which the washing water and the washing water are sprayed into the inner tank 115 in which the laundry is saturated.

1, 9, and 10, when the inner tub 115 is empty, the load is applied to the support member 117 and the damper 118 connected to the outer tub 122 at least. In this case, the distance between the injection nozzle 150 and the upper end of the inner tank 115 becomes l, and the washing water sprayed by the injection nozzle 150 reaches a height apart from the upper end of the inner tank 115 by h. On the other hand, when the wash water and the laundry are accommodated to the limit capacity that the inner tank 115 can afford, since the support member 117 and the damper 118 are most heavily loaded, the inner tank 115 sags downward. The distance between the injection nozzle 150 and the upper end of the inner tank 115 becomes l '(l <l'), and the sprayed washing water reaches a height apart from the upper end of the inner tank 115 by h '. . (h> h ')

In the laundry treatment apparatus 100 of the present invention, it is preferable that the rotation angle θ and the injection width angle W of the injection nozzle 150 are set so that the washing water is sprayed into the inner tank 115 without overflowing irrespective of the load.

FIG. 11 is a partial perspective view illustrating another embodiment in which the injection nozzle 250 is disposed on the top cover 112. 12 is an assembly view of the injection nozzle 250 and the top cover 112 shown in FIG. FIG. 13 is a side view of the injection nozzle 250 shown in FIGS. 11 and 12.

The spray nozzle 250 applied to the present embodiment is formed in a somewhat different form from the spray nozzle 150 applied to the above-described embodiment, but the point of spraying the washing water toward the inner surface and the bottom of the inner tank 115 is described above. Since it is the same as the embodiment, the following description will be omitted for the structure in which the washing water is sprayed by the spray nozzle 250 and the form of the sprayed washing water.

The inlet pipe through hole 112a and the injection nozzle positioning holes 112b and 112c are formed in the top cover 112 to install the injection nozzle 250. The inlet pipe 251 of the injection nozzle 250 is inserted into the inlet pipe through hole 112a, and the positioning protrusions 156 formed in the injection nozzle 250 are inserted into the positioning holes 112b and 112c, respectively, to inject the jet. The nozzle 250 is mounted to the top cover 112. At this time, the arrangement of the positioning holes 112b and 112c is set in consideration of the injection direction of the injection nozzle 250.

FIG. 14 is a partial perspective view illustrating a bottom surface of the top cover 112 to describe another embodiment in which the injection nozzle 350 is disposed on the top cover 112. 15 is a side view of the top cover 112 and the injection nozzle 350 shown in FIG.

The injection nozzle 350 applied to the present embodiment is formed in a somewhat different form from the injection nozzles 150 and 250 applied to the above-described embodiments, but the washing water is directed toward the inner surface and the bottom of the inner tank 115. Since the spraying point is the same as the above-described embodiments, the following description will be omitted for the structure in which the washing water is sprayed by the spray nozzle 350 and the shape of the sprayed washing water.

14 to 15, the injection nozzle 350 is installed on the bottom surface of the top cover 112 to be located under the detergent box 134. A bracket 112d for installing the injection nozzle 350 to the top cover 112 may be provided.

Due to the configuration as described above, it is possible to connect some of the flow path flowing into the detergent box 134 to the injection nozzle 150, and thus there is an advantage that the flow path configuration is simplified.

FIG. 16 is a perspective view of the bottom surface of the outer tub cover 114 to explain an embodiment in which the injection nozzle 450 is disposed on the outer tub cover 114. 17 is a side cross-sectional view of the outer cover 114 shown in FIG.

The injection nozzle 450 applied in this embodiment is formed in a somewhat different form from the injection nozzles 150, 250, 350 applied in the above-described embodiments, but toward the inner side and the bottom of the inner tank 115 Since spraying the washing water is the same as the above-described embodiments, the following description will be omitted for the structure in which the washing water is sprayed by the spray nozzle 450 and the shape of the sprayed washing water.

The injection nozzle 450 may be provided on the bottom surface of the outer cover 114. To this end, the inlet pipe connector 114a into which the inlet pipe 451 of the injection nozzle 450 is inserted is formed at the bottom of the outer tub cover 114 so as to communicate with the outside of the outer tub cover 114.

By installing the injection nozzle 450 on the outer tub cover 114, even if the height of the inner tub 115 varies depending on the load of the cloth and / or wash water, the spray nozzle 150 is fixed at a constant height relative to the inner tub 112. Will be maintained. Therefore, even if the load increases and the inner tank 115 is struck downward, there is an advantage that the washing water does not overflow the inner tank 115 and is stably sprayed into the inner tank 115.

Those skilled in the art will appreciate that the present invention can be embodied in other specific forms without changing the technical spirit or essential features of the present invention. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. That is, the scope of the present invention is indicated by the claims that are described later rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present invention. Should be interpreted as

1 is a side cross-sectional view of a laundry treatment machine according to an embodiment of the present invention.

2 is a partial view of the laundry treatment apparatus shown in FIG. 1 as viewed from above.

3 is a partial view for explaining the form of the washing water sprayed into the inner tank by the spray nozzle.

Figure 4 is a partial view for explaining how the rinsing of the laundry is performed by the injection nozzle.

Figure 5 is a partial view for explaining how the injection nozzle is mounted on the top cover.

6 is a front view for explaining the injection width angle W and the rotation angle θ of the injection nozzle.

7 is a side cross-sectional view for explaining an inclination angle of the injection nozzle.

8 is a perspective view for explaining an injection thickness angle of the injection nozzle.

9 illustrates a state in which washing water is sprayed when the inner tank is empty.

10 illustrates a state in which the washing water and the washing water are sprayed into the inner tank saturated with the laundry.

11 is a partial perspective view showing another embodiment in which the injection nozzle is disposed on the top cover.

12 is an assembly view of the injection nozzle and the top cover shown in FIG.

FIG. 13 is a side view of the jet nozzle shown in FIGS. 11 and 12.

14 is a partial perspective view illustrating the bottom surface of the top cover in order to explain another embodiment in which the injection nozzle is disposed on the top cover.

FIG. 15 is a side view of the top cover and the jet nozzle shown in FIG. 14.

16 is a perspective view of the bottom surface of the outer tub cover to explain an embodiment in which the spray nozzle is disposed on the outer tub cover.

17 is a side sectional view of the outer cover shown in FIG.

Claims (12)

A cabinet having an open top and forming an appearance; An outer tub suspended in the cabinet and containing wash water; An inner tub rotatably disposed in the outer tub and containing laundry; And It includes a spray nozzle for spraying the washing water to the bottom and the inner surface of the inner tank, The injection nozzle, An inlet pipe forming a passage through which washing water is introduced; And The washing water discharged from the inlet pipe is injected while colliding, and a predetermined angle with respect to the discharge direction of the inlet pipe so that one boundary of the sprayed washing water touches the inner surface of the inner tank and the other boundary touches the bottom of the inner tank. Laundry processing apparatus comprising a spray surface disposed twisted to. The method of claim 1, The spray surface is, Laundry processing apparatus is formed so that the width gradually widens toward the end of the washing water is sprayed. The method of claim 1, The laundry line sprayed by the spray nozzle is in contact with the inner tank is a laundry treatment device forming a diagonal line from the inner surface of the inner tank to the bottom. The method of claim 1, The inflow pipe is a laundry processing device that the inner diameter gradually decreases toward the outlet end side of the inlet end in which the washing water is discharged. The method of claim 1, A fabric access hole is formed to allow the fabric to enter and exit, and further includes a top cover provided at an upper portion of the cabinet. The injection nozzle, Laundry treatment device disposed on the top cover. The method of claim 5, It is provided in the top cover, and further comprising a detergent water supply unit for supplying the wash water via the detergent box into the inner tank, The spray nozzle is a laundry treatment device disposed adjacent to the detergent water supply. The method of claim 6, The injection nozzle, Laundry treatment device disposed on the side of the detergent water supply. The method of claim 6, The injection nozzle, Laundry treatment device disposed below the detergent water supply. The method of claim 5, The injection nozzle, Laundry treatment device further comprises a reinforcing part to reinforce the bonding strength with the top cover. The method of claim 9, The reinforcement part, Laundry processing apparatus is formed of a plate body extending outward from the outer periphery of the inlet pipe. The method of claim 1, In order to set the injection direction of the injection nozzle, the laundry treatment machine is a positioning projection is formed in any one of the injection nozzle and the top cover, the other is formed with a positioning hole in which the positioning projection is inserted. The method of claim 1, A cloth entrance is formed so that the cloth can enter and exit, and further includes an outer cover disposed above the outer tank, The spray nozzle is a laundry treatment device disposed on the outer cover.

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