KR102042217B1 - A washing machine - Google Patents

Abstract

Washing machine of the present invention the tub containing the wash water; A drum rotated in the tub; And a plurality of swabs disposed in the drum and discharging washing water in the tub and discharging the washing water into the drum as the drum is rotated, each of the plurality of swabs having an inlet through which washing water flows from the tub; And a discharge opening formed toward the inside of the drum to discharge the wash water introduced through the inlet, and formed smaller than the inlet, wherein at least one of the plurality of swabs has the inlet facing the direction of forward rotation of the drum. And at least the other is arranged such that the inlet faces the direction of reverse rotation of the drum.

Description

Washing machine {A washing machine}

The present invention relates to a washing machine.

In general, a washing machine is a device that cleans through washing, rinsing, and dehydration to remove contamination on clothes, bedding, etc. (hereinafter, referred to as 'po') by using water, detergent, and mechanical action.

In this washing machine, the drum containing the cloth is rotated in the tub containing the washing water. The drum is rotated to a degree soaked in the wash water so that the fabric contained therein can be wetted with the wash water. As the position of the fabric changes in various forms according to the driving pattern of the drum, the contamination of the fabric is removed by the chemical action of water and detergent or the physical force caused by the position of the fabric.

However, in the conventional washing machine, although a certain amount of flow of washing water occurs as the drum is rotated, such a flow is mainly caused by viscous or frictional force between the drum and the washing water, or due to a change in position of the cloth. There was a limit to dissolving the detergent evenly in water, and because the fabric must be located at the bottom of the drum in order to get wet with the wash water, some fabrics do not get wet enough when the position of the fabric is not properly changed. In order to solve this problem, it was necessary to supply more water or drive the drum for a longer time.

According to the present invention, as the drum is rotated, the washing water is sprinkled, and the washed water thus discharged is discharged back into the drum, thereby forcibly generating the flow of the washing water. Even if it is to provide a washing machine that can be made smoothly.

Washing machine of the present invention the tub containing the wash water; A drum rotated in the tub; And a plurality of swabs disposed in the drum and discharging washing water in the tub and discharging the washing water into the drum as the drum is rotated, each of the plurality of swabs having an inlet through which washing water flows from the tub; And a discharge opening formed toward the inside of the drum to discharge the wash water introduced through the inlet, and formed smaller than the inlet, wherein at least one of the plurality of swabs has the inlet facing the direction of forward rotation of the drum. And at least the other is arranged such that the inlet faces the direction of reverse rotation of the drum.

First, the washing machine of the present invention has the effect of more smoothly circulating or stirring the wash water in the tub. In particular, the detergent may be uniformly dissolved in water during the washing process.

Second, even if the drum is rotated in either direction, there is an effect that the stirring or circulation of the wash water by the spindles can be made.

Third, since water or detergent-dissolved water is directly applied to the fabric by the swabs, the fabric wetting can be performed smoothly, and washing performance can also be improved.

1 illustrates a washing machine according to an embodiment of the present invention.
FIG. 2 shows a partial view of the drum of FIG. 1.
3 shows the inside of the lifter of FIG. 2.
4 illustrates a cross section of the lifter of FIG. 3.
FIG. 5 shows an embodiment in which swabs are arranged alternately along the circumference taken on the drum, with the inlets in opposite directions.

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 illustrates a washing machine according to an embodiment of the present invention. 2 is a perspective view of the drum 30 of FIG. 1. FIG. 3 shows a view from the inside of the drum that the swabs 70a and 70b are formed in the drum 30 of FIG. 2. FIG. 4 is a cross section of the drum 30 shown in FIG. 2, where (a) shows the positions of the studs 70a (1), 70a (2) and 70a (3) on the circumference L1. , (b) shows the positions of the swabs 70b (1), 70b (2), 70b (3) on the circumference L2.

Referring to FIG. 1, a washing machine 1 according to an embodiment of the present invention includes a tub 20 disposed inside a casing with washing water and a drum 30 disposed inside the tub 20 and having a cloth inserted therein to rotate. ), A driving unit 40 for rotating the drum 30, and a control unit 15 for controlling the operation of each washing machine unit.

The casing may include a cabinet 11 having an opening and an upper surface, a cabinet cover 12 provided on the front surface of the cabinet 11, and a top plate 116 provided on the upper surface of the cabinet 11. The cabinet cover 12 has a fabric access hole formed to allow the fabric to enter and exit the drum 30, and a door 13 for opening and closing the fabric access hole is provided in the cabinet cover 12 so as to be rotatable.

The gasket 21 is intended to mitigate the shock transmitted to the door 13 when the drum 30 is rotated and to prevent the wash water from leaking out of the tub 20 to the outside. It is arranged between the holes.

Springs 14 and / or dampers 16 may be provided to damp vibrations when the drum 30 rotates, and the tubs 20 are supported by the cabinets 11.

The drum 30 rotates with a cloth inserted. A plurality of holes 32 may be formed in the drum 30 so that the washing water flows between the tub 20 and the drum 30. According to an embodiment, a plurality of embosses may protrude from the inner circumferential surface of the drum 30, and holes 32 may be formed on the embosses.

As the drum 30 is rotated, a lifter 17 for lifting the fabric may be further provided.

The driving unit 40 rotates the drum 30. The driving unit 40 is composed of a motor and a switching element for controlling the same. The driver 40 is controlled by the controller 15 to implement various motions.

The cabinet 11 has a water supply valve 53 for introducing wash water from an external water source, a water hose 51 for guiding the wash water introduced into the wash water supply valve to the detergent box 52, a laundry detergent or a fabric softener. It is preferable that a detergent box 52 for accommodating detergent and washing water and detergent is mixed, and a water supply bellows 54 for introducing the washing water mixed with the detergent from the detergent box into the drum 30. .

In the cabinet 11, an outflow lake 62 through which the wash water in the tub 20 flows out, a pump 63 through which the wash water flows out, a circulation passage 64 for guiding the wash water to the drum 30, The gasket 21 may include a nozzle 65 for introducing the washing water into the drum 30 and a drainage passage 66 for guiding the washing water to the outside.

The controller 15 receives a user input, controls the overall operation of the washing machine, and displays a current operation state. The controller 15 may be provided above the cabinet cover 12. The controller 15 may be provided with an operation button for receiving a user input and a display device such as a microcomputer and a display for controlling the operation of the washing machine.

Referring to FIG. 2, the washing machine 1 of the present invention is disposed on the drum 30, and as the drum 30 is rotated, the washing machine 1 pumps up the washing water in the tub 20 and discharges the washing water into the drum 30. 70a, 70b, and a plurality of such swims 70a, 70b are provided.

Each of the swabs 70a and 70b is opened toward the inside of the drum 30 to discharge the washing water introduced through the tub 20 and the washing water introduced through the inlets 722a and 722b. Discharge ports 721a and 721b. Inlet 722a, so that the washing water introduced through the inlet (722a, 722b) is not discharged at a time through the discharge port (721a, 721b) at a time, it can be discharged little by little while being raised to a certain height by the rotation of the drum 30 The flow rate flowing through 722b and the flow rate discharged through the discharge holes 721a and 721b should be controlled. For this purpose, the discharge holes 721a and 721b are smaller than the inlet holes 722a and 722b.

On the other hand, at least one 70a of the plurality of swabs 70a and 70b is opened such that the inlet 722a faces the forward rotation direction of the drum 30, and at least the other 70b is the inlet 722b. Opening in the direction of reverse rotation of 30). That is, at least one (70a) of the plurality of swim (70a, 70b) is the outer end of the flow tube 720a to be described later toward the forward rotation direction of the drum 30, at least the other 70b of the flow tube (720b) The outer end faces the reverse rotation direction of the drum 30. In addition, the at least one scoop 70a has an inner end of the flow tube 720a toward the reverse rotation direction of the drum 30, and the at least one scoop 70b has an inner end of the flow tube 720b having a drum 30. Toward the direction of normal rotation. The drum 30 may be rotated in any direction according to the control of the driving unit 40. Here, when one rotation direction of the drum 30 is defined as the forward rotation direction, the other rotation direction is defined as the reverse rotation direction. . When the drum 30 is rotated forward, washing water is pumped up by the scoop 70a which is mainly opened in the forward direction of the drum 30, and when the drum 30 is rotated backward. Since the washing water is pumped up mainly by the scoop 70b in which the inlet 722b is opened in the reverse rotational direction of the drum 30, the washing water 70b is rotated in the spools 70a and 70b no matter in which direction the drum 30 is rotated. The circulation and agitation of the wash water can be achieved.

Scoops 70a and 70b may include flow tubes 720a and 720b forming a path through which the wash water contained in the tub 20 flows into the drum 30. The flow tubes 720a and 720b may form a path of the washing water flowing from the inlets 722a and 722b to the discharge ports 721a and 721b. When defining the tub 20 side direction to the outside and the center direction of the drum to the inside with respect to the drum 30, the inlets 722a and 722b are formed at the outer ends of the flow tubes 720a and 720b, and the discharge holes 721a. , 721b is formed at the inner ends of the flow tubes 720a and 720b. Flow tubes 720a and 720b are inclined such that the outer and inner ends face different directions. That is, in the flow tube 720a of at least one of the scoops 70a and 70b, the outer end faces the forward rotation direction of the drum 30 and the inner end faces the reverse rotation direction of the drum 30. The flow tube 720b of at least one of the scoops 70b of the plurality of scoops 70a and 70b has an outer end facing the reverse direction of the drum 30 and an inner end of the drum 30 Inclined to face the direction of rotation. At least a portion of the flow tubes 720a and 720b including the outer end protrudes from the outer circumferential surface 33 of the drum 30, and inlets 722a and 722b are formed at one end of the protruding portion. Since the inlets 722a and 722b protrude from the outer circumferential surface 33 of the drum 30, the washing water in the tub 20 may be introduced more actively. The flow tubes 720a and 720b may be formed to become narrower from the inlets 722a and 722b to the outlets 721a and 721b.

In particular, the flow tubes (720a, 720b) not only functions to guide the flow of the wash water, but also serves to store the wash water for a predetermined time. That is, as described above, since the sizes of the outlets 721a and 721b are small in the inlets 722a and 722b, the washing water introduced through the inlets 722a and 722b is not discharged through the outlets 721a and 721b at once. While the position of the scoops 70a and 70b is raised as the drum 30 rotates, the state in which the washing water is contained in the flow tubes 720a and 720b is maintained for a predetermined time.

Meanwhile, the plurality of swabs 70a and 70b may be arranged in a row along the length direction of the drum 30. At least one 70a of the threads 70a and 70b arranged in this manner is arranged such that the inlet 722a faces the forward rotation direction of the drum 30, and at least the other 70b is the inlet 722b. Is arranged to face the reverse rotation direction of the drum (30). Preferably, a scoop 70a in which the inlets 722a and 722b are opened in the forward rotation direction of the drum 30 and a scoop in which the inlets 722a and 722b are opened in the reverse rotation direction of the drum 30 70b) may be arranged alternately. Hereinafter, the arrangement of the swabs in rows along the longitudinal direction of the drum 30 is referred to as the arrangement of the swabs.

The arrangement of the swab may be provided with a plurality (see ①, ②, ③, in Fig. 4 (a), ① ', ②', ③ 'in Fig. 4 (b)), the drum 30 in the longitudinal direction When viewed, the angle between the arrays of adjacent swabs (1, 2) (2, 3) (3, 1) with respect to the center of the drum 30 may have a constant value. (In the present embodiment, an arrangement of three swabs having an angle of 120 degrees between adjacent ones is taken as an example, but the number of arrangements of the swabs is not necessarily limited thereto.

On the other hand, when taking a predetermined circumference L1 on the drum 30, those arranged on the same circumference of the swabs may be arranged so that the inlet faces in the same direction. Each of the inlets 722a of the swamps 70a (1), 70a (2), and 70a (3) is opened toward the direction of forward rotation of the drum 30, and FIG. ) Shows that each of the inlets 722b of the swabs 70b (1), 70b (2), 70b (3) disposed on the circumference L2 are all opened toward the reverse direction of the drum 30 have.

FIG. 5 illustrates an embodiment in which swabs are arranged alternately along the circumference taken on the drum 30 with the inlets in opposite directions.

Comparing FIG. 5 with FIG. 4, in this embodiment, the swabs arranged on the same circumference of the drum 30 include a swab 70a in which the inlet 722a faces the forward rotation direction of the drum 30, and the drum 30. There is a difference in that the scoops 70b in the reverse rotational direction are alternately arranged, and the other configurations are the same.

In particular, the swabs may be arranged such that the directions of the inlets 722a and 722b alternate with each other along the longitudinal direction of the drum 30 at the positions of the swabs shown in FIG. 5.

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. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. The scope of the present invention is shown by the claims 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.

Claims (9)

A tub for washing water;
A drum rotating in the tub, the drum receiving the fabric;
A plurality of lifters disposed on an inner circumferential surface of the drum in a circumferential direction to lift the fabric when the drum is rotated; And
Is disposed on the drum, as the drum is rotated includes a plurality of scoops to pump up the washing water in the tub and to discharge into the drum,
Each of the plurality of swims,
A flow tube forming a path through which the wash water contained in the tub flows into the drum;
An inlet formed at an outer end of the flow tube and into which washing water is introduced from the tub; And
It is opened toward the inside of the drum to discharge the wash water introduced through the inlet, and comprises a discharge port formed smaller than the inlet,
The flow pipe, at least a portion including the outer end protrudes from the outer circumferential surface of the drum, narrowed toward the discharge port from the inlet,
The flow pipe of at least one of the spools is inclined such that the outer end of the inlet is formed toward the forward rotation direction of the drum, and the inner end of the discharge port is directed toward the reverse rotation direction of the drum.
The flow pipe of at least one of the plurality of swabs is inclined such that the outer end of the inlet is formed toward the reverse rotation direction of the drum, and the inner end of the discharge port is toward the forward rotation direction of the drum.
The plurality of swabs,
Washing machine arranged in a row along the longitudinal direction of the drum, each row is located between any one pair of adjacent lifters of the plurality of lifters. delete The method of claim 1,
The plurality of swabs arranged in a row along the longitudinal direction of the drum,
And a swab in which the outer end of the flow tube faces the forward rotation direction of the drum, and a swab in which the outer end of the flow tube faces the reverse rotation direction of the drum. The method of claim 1,
The plurality of swabs,
And a plurality of rows arranged in a row such that the angle between adjacent rows with respect to the center of the drum is constant when the drum is viewed in the longitudinal direction. The method of claim 1,
Washing machine, the ones arranged on the same circumference of the drum, the outer end of the flow tube is directed in the same direction. The method of claim 1,
Among the swabs, those disposed on the same circumference of the drum are washing machines in which the outer end of the flow tube faces the forward rotation direction of the drum and the outer end of the flow tube faces the reverse rotation direction of the drum. .
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