KR20180010263A - washer - Google Patents

Abstract

The washing machine provided in the present invention can easily and stably remove the unevenness of the outer circumferential surface of the washing tub which constitutes the dewatering tank and can reduce the members commonly used in the past to greatly improve the assembly efficiency and space efficiency, No joint due to contact between the members at the start is generated. The washing machine (1) comprises a cylindrical first washing tub (3) having a bottom and forming a housing of the washing machine body (2) and having an open top; A cylindrical second washing tub 4 disposed in the first washing tub 3 so as to be freely rotatable with a predetermined distance from the inner circumferential surface of the first washing tub 3 and also serving as a dewatering unit and having a bottom; A disc portion 5 having a stirring blade 52 extending radially outward of the second washing tub 4 and integrally formed with the second washing tub 4; An electric motor 61 for driving the second washing tub 4 and the disk portion 5 to rotate together; Respectively.

Description

washer

The present invention can easily and stably remove the unevenness on the inner and outer circumferential surfaces of the washing tub, and can reduce the members commonly used in the past, thereby greatly improving the assembly efficiency and space efficiency, The occurrence can be reduced.

Conventionally, a vertical washing machine has a main body frame constituting a housing of a washing machine; An outer tub installed in the main body frame and storing laundry liquid; A dewatering tank installed in the outer tank so as to freely rotate and having a pulsator disposed at the bottom thereof; And a suspending rod suspended over the outer tub relative to the body frame; (For example, Patent Document 1). In such a washing machine, when the laundry is put into the dehydrating tank, the dehydrating tank is rotated to rotate the dehydrating tank while the washing water is stored in the outer tank, and the dehydrating tank is rotated to discharge the washing water, , It balances through the suspension rods, preventing contact between the outer tank and the body frame to reduce joints.

Prior art literature

Patent literature

Patent Document 1: Japanese Patent Application Laid-Open No. 2004-275480

However, in the above-described conventional washing machine, since the washing water flows out through the plurality of water holes formed in the dehydrating tank during the washing process, the outer circumferential surface of the dehydrating tank is immersed in washing water containing stains and detergent impurities It is in a state of being. After the dewatering process, some of these stains and detergent germs remain on the outer peripheral surface of the dewatering tank and accumulate gradually, so molds (mainly black mold (aspergillus niger)) can be produced on the outer peripheral surface of the dewatering tank as a nutrient source.

Therefore, although it is preferable to clean the outer peripheral surface of the dewatering tank periodically, the conventional washing machine has a structure in which the hand can not be put between the dewatering tank and the outer tank. In addition, the dehydrating tank is connected to an electric motor serving as a drive unit, and is difficult to detach from the main body of the washing machine. Therefore, in the conventional washing machine, it is difficult for the user to carry out direct purging treatment, such as cleaning the surface of the outer peripheral surface of the dehydrating tank.

Therefore, it is possible to remove the stain and fungi on the outer peripheral surface of the dewatering tank by using a chemical method such as a detergent for tubular washing, but the chemical method may have a problem that the stain removal efficiency is more likely to be concerned than direct direct flushing treatment.

In addition, since the conventional washing machine generally includes a body frame, an outer tank, and a dehydrating tank in addition to the three-layer structure, the outer tube is provided with a hanging rod for hanging, so that the number of members is large, . In addition, an unnecessary space is formed between the main body frame and the outer tub, so that it is impossible to say that the space efficiency is high because the capacity for washing (the volume of the dewatering tank) is considerably reduced in consideration of the volume of the main body frame. Furthermore, at the start of dewatering, the outer tub supported by the hanging bar may come into contact with the main body frame, resulting in the generation of the joint.

In order to solve such problems, various studies and developments have been made in the past, but the above-described structures including the three-layer structure and the hung rod have limitations in terms of improvement in assembly efficiency, space efficiency, and seam prevention, The new type of washing machine that can be done is not known at present.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a washing machine capable of easily and stably removing unevenness on the outer circumferential surface of a washing tub constituting a dewatering tank, The assembly efficiency and the space efficiency are remarkably improved, and a joint is not generated where the members come into contact with each other at the start of dewatering.

The present invention uses the following measures to solve such a technical problem.

That is, the washing machine of the present invention comprises a cylindrical first washing tub constituting a housing of a washing machine main body, an upper opening thereof and a bottom; A second cylindrical washing tub disposed in the first washing tub so as to be freely rotatable at a predetermined interval from the inner circumferential surface of the first washing tub and also serving as a dewatering unit and having a bottom; A circular plate integrally formed with the second washing tub and having a stirring blade extending radially outward of the second washing tub; And an electric motor for driving the second washing tub and the disk unit to rotate together; And a control unit.

In addition, in the washing machine of the present invention, it is preferable that at least a part of the first washing tub is composed of a transparent member.

In the washing machine of the present invention, it is more preferable that the side wall of the first washing tub is composed of a plurality of transparent glass members connected in the circumferential direction by a sealing portion.

In the washing machine of the present invention, it is more preferable that a baffle is provided on at least one of the inner circumferential surface of the first washing tub and the outer circumferential face of the second washing tub.

The present invention according to the above description can load laundry into a space between a first washing tank and a second washing tank and a second washing tank and drives the motor in a state where water is filled in the first washing tank, And a water flow is generated in the first washing tank through the stirring blade to progress the washing process. In addition, in a state in which the laundry after the washing treatment is accommodated in the second washing tank, the second washing tub is rotated while discharging the water, so that the centrifugal dehydration can be performed. Thus, the washing machine according to the present invention can carry out proper washing process with a new structure which is not known until now, and the hand can be put into the first washing tub from the upper side, and the washing process can be performed directly on the inner circumferential surface of the first washing tub and on the outer circumferential surface of the second washing tub It is possible to remove stains and fungi on the outer circumferential surface of the second washing tub which is also used as a dehydrating bath easily and stably. In addition, the first washing tank has a function of a main body frame and an outer tank of a conventional washing machine, the second washing tank also serves as a dewatering tank, and the second washing tank and the disk portion are integrally formed. It is possible to realize a two-layer structure, and it is not necessary to install the member in a three-layer structure like a conventional washing machine or suspend the member through a suspension rod, and the second washing tub and the disk unit can be driven to rotate by one electric motor. Therefore, the washing machine according to the present invention can reduce unnecessary space in the main body of the washing machine by reducing the number of commonly used members, and can greatly improve the assembly efficiency and space efficiency at the time of manufacturing, It is possible to prevent a situation where a joint occurs.

In addition, according to the present invention in which at least a part of the first washing tub is composed of a transparent member, the user can check the unevenness of the inner circumferential surface of the first washing tub and the outer circumferential surface of the second tub at a glance, According to the judgment, the cleaning timing of the washing tub can be judged easily and appropriately.

Particularly, according to the present invention, in which the side wall of the first washing tub is composed of a plurality of transparent glass members, as compared with the case where the first washing tub is made of resin, for example, the stains are not easily adhered, It is not damaged. In addition, by designing the structure in which a plurality of transparent glass members are connected to each other through the sealing portion, the first washing tub having a large diameter can be manufactured without a special design, and a washing machine with a small washing capacity can be realized .

Further, according to the present invention in which the baffle is installed, the laundry in the first washing tank is rubbed by the baffle, so that the washing power can be improved.

1 is a perspective view showing the appearance of a washing machine according to an embodiment of the present invention.
2 is a longitudinal sectional view of the same washing machine.
3 is an exploded perspective view of the same washing machine.
4 is an exploded side view of the same washing machine.

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

1 is a perspective view showing the appearance of a vertical washing machine 1 (hereinafter referred to as "washing machine") according to an embodiment of the present invention. 2 is a longitudinal sectional view of the washing machine 1. Fig. Fig. 3 is an exploded perspective view of the washing machine 1. Fig. Fig. 4 is an exploded side view of the washing machine 1. Fig.

2, the washing machine 1 includes a washing machine body 2, an upper cover 7, a water supply unit 8, a drainage unit 9, and a control unit 65. In addition, on the upper surface of the washing machine 1, a control plate (not shown) having an operation start button or the like is provided. It should be noted that the illustration of the water supply unit 8, the drainage unit 9 and the control unit 65 is omitted in Figs. 1, 3, and 4.

2, the washing machine main body 2 includes a first washing tub 3, a second washing tub 4, a disk unit 5, a driving unit 6, and a receiving case 75.

The first washing tub 3 has a cylindrical shape with an open top and a bottom, and can store water therein, and constitutes a housing of the washing machine body 2 as shown in FIG. In addition, the first washing tub 3 has a first receiving space S1 formed between the first washing tub 3 and the second tub 4. When the upper cover 7 is opened, The laundry is configured to be accessible. The detailed structure of the first washing tub 3 will be described below.

As shown in FIG. 3, the second washing tub 4 is cylindrical with a bottom, and the diameter and the length in the axial direction are smaller than the first washing tub 3. Specifically, the diameter of the second washing tub 4 is about one-third to half of the diameter of the first washing tub 3. In addition, the length of the second washing tub 4 in the axial direction is set to about one-half to one-fifth of the length in the axial direction of the first washing tub 3. The second washing tub 4 is disposed on the concentric circle of the first washing tub 3 so as to be freely rotatable within the first washing tub 3 at a predetermined interval from the inner circumferential surface of the first washing tub 3.

The second accommodating space S2 is formed in the second washing tub 4 as shown in FIG. 2 for accommodating the laundry therein. When the upper cover 7 is opened, the laundry is allowed to enter and exit the laundry. In addition, the second washing tub 4 is also used as a dewatering tank, and a plurality of water supply holes 41 are formed on the side walls thereof. Therefore, when the second washing tub 4 rotates while receiving the wet laundry, the laundry is centrifugally dewatered and the water is discharged to the outside of the second washing tub 4 through the water hole 41.

As shown in Fig. 3, the disk portion (feller) 5 is integrally formed with the second washing tub 4 and has a substantially cylindrical shape extending approximately radially outward from the bottom portion 4a of the second washing tub 4 A disk-shaped disk unit main body 50; And a plurality of (four in this embodiment) stirring vanes 52 formed on the upper surface of the circular plate main body 50. [ The agitating blades 52 extend from the bottom portion 4a of the second washing tub 4 to the outer periphery of the circular plate main body 50 radially outward of the second washing tub 4, (50). The stirring wing (52) stirs the water stored in the first washing tank (3) by the water supply unit (8) shown in Fig. 2 to generate water flow.

Here, the radially outward portion of the pulsator of the conventional washing machine has a larger force for stirring water and laundry than the central portion where the plurality of blades are radially formed at the center of the dehydrating tub, More helpful. Since the disc portion 5 of the washing machine 1 of the present embodiment is constituted only by the portion corresponding to the outer portion of the conventional pulsator, the washing machine 1 is strong against the first receiving space S1 So that high washing power can be exerted similarly to a conventional washing machine.

The drive unit 6 shown in Fig. 2 includes an electric motor 61 and is disposed below the first and second washing tanks 3 and 4. The electric motor 61 rotates the driving shaft 60 extending to the bottom portion 4a of the second washing tub 4 and rotates the second washing tub 4 and the disk unit 5 integrally at a high speed, Thereby imparting a driving force to rotate laundry and water contained in the washing tub 3 and the second washing tub 4. In this embodiment, a direct drive motor (DDM) is used as the electric motor 61. The operation of the drive unit 6 is controlled by a control unit 65 using an inverter. The control unit 65 outputs the control signals Sa and Sb to control the drainage of the water supply and drainage unit 9 of the water supply unit 8. [

The support case 75 is a cylindrical member having a diameter the same as that of the first washing tub 3, and its upper end is fixed to the washing tub base portion 34 described later. Such a support case 75 functions as a receiving portion of the washing machine 1. [ The drive unit (6) is accommodated in the support case (75).

3, the upper cover 7 can open and close the washing machine body 2. The upper cover 7 includes a substantially disk-shaped cover body 70 and a handle 71 (see FIG. 3) mounted on the center of the upper surface of the cover body 70 The lower portion 72 extending downward from the edge of the cover main body 70 comes into contact with the inner peripheral surface of the upper surface plate 33 to be described later, The opening of the main body 2 can be closed.

In the washing machine 1 of the present invention as described above, a cylindrical first washing tub 3 having a bottom serving as a housing of the washing machine body 2 is provided with a cylindrical second And the second washing tub 4 is integrally formed with the disc portion 5 having the stirring blades 52 extending radially outward from the bottom portion 4a of the second washing tub, The second washing tub 4 and the disk portion 5 are driven to rotate together by the electric motor 61.

Accordingly, the user can input the laundry into the first accommodation space S1 formed between the first and second washing tanks 3 and 4 and the second accommodation space formed in the second washing tank 4, 1 The electric motor 61 is driven in a state in which the water is filled in the washing tub 3 so that the second washing tub 4 and the disk 5 are rotated and the inside of the first washing tub 3 And the washing process is performed. In addition, in a state in which the laundry after the washing treatment is accommodated in the second washing tub 4, the second washing tub 4 is rotated while discharging the water, so that the centrifugal dewatering operation can be performed.

In this way, in the washing machine 1 of the present invention, it is possible to carry out proper washing treatment with a new structure which is not known up till now as shown in Fig. 1 and to put the hand into the first washing tub 3 from above, It is possible to directly perform the cleaning process on the inner circumferential surface of the first washing tub 3 and the outer circumferential surface of the second washing tub 3, so that it is possible to remove stains and fungi on the outer circumferential surface of the second washing tub which is also easily and stably used as the dewatering bath.

In addition, the first washing tub 3 has the functions of the main body frame and the outer tub of the conventional washing machine, the second washing tub 4 is also used as a dewatering unit, and the second washing tub 4 and the circular plate unit 5 are integrally It is possible to realize a two-layer structure in which the second washing tub 4 is disposed in the first washing tub 3, and it is not necessary to install the tub tubular structure in a three-layer structure like the conventional washing machine, It is possible to drive the second washing tub 4 and the disk unit 5 to rotate with one electric motor 61. Therefore, the washing machine 1 can reduce the conventional universally used members and can reduce unnecessary space in the washing machine body 2, and can greatly improve the assembling efficiency and space efficiency at the time of manufacturing, It is possible to prevent a situation in which a joint occurs due to contact between members.

Further, in the first receiving space S1 formed between the first and second washing tanks 3 and 4, a strong water flow is generated through the stirring vanes 52, Since the generated water flow in the accommodation space S2 is weaker than the water flow generated in the first accommodation space S1, for example, a garment that easily breaks down, such as thin clothing, is put into the second accommodation space S2, You can proceed. That is, the second washing tub 4 generating the water flow different from the water flow in the first washing tub 3 can be used as the washing tub.

Hereinafter, the first washing tub 3 constituting the above-described washing machine 1 will be described in detail.

As shown in Fig. 3, the first washing tank 3 includes a plurality of (three in this embodiment) transparent glass members 31 which are transparent members; A plurality (three in this embodiment) of sealing portions (columns) 32 for connecting the transparent glass members 31 to each other; A cylindrical upper plate 33 attached to the upper end of the transparent glass member 31 and the sealing portion 32; And a washing tub bottom 34 as shown in Fig.

Since at least a part of the first washing tub 3 is constituted by the transparent member, the user can easily grasp the unevenness state of the inner circumferential surface of the first washing tub 3 and the outer circumferential surface of the second tub 4 from the outside of the washing tub main body 2 The user can easily and appropriately determine the cleaning timing of the first washing tub 3 and the second washing tub 4 in accordance with his or her judgment. In addition, after the flushing process, the user can easily check the flushing status. Furthermore, since the movement (state) of the laundry during washing can be confirmed from the outside of the washing machine main body 2, the user can adjust the water level in the washing process and confirm the turbidity of the water during the rinsing process.

As shown in Fig. 3, the transparent glass member 31 has a substantially rectangular shape curved in a circular arc shape toward the left and right. In order to prevent water leakage, both ends of the transparent glass member 31 in the left- gasket 31a.

As shown in Fig. 4, the sealing portion 32 is a plate-shaped member whose vertical size is larger than the vertical size of the transparent glass member 31, and at both ends in the lateral direction, And an end portion in the lateral direction of the transparent glass member 31 covered with the gasket 31a is inserted into the groove portion 32b. An upper end portion of the sealing portion 32 is fixed to the upper surface plate 33 and an upper end portion of the sealing portion 32 is fixed to the upper surface plate 33. Further, (32) is fixed to the bottom portion (34) of the washing tub.

The upper surface plate 33 is a tubular member having a groove 33c into which the upper end of the transparent glass member 31 is inserted, the lower surface being a tubular member (see Fig. 2). As shown in Figs. 3 and 4, a plurality of mounting groove portions 33a (three in this embodiment) are formed on the outer peripheral surface of the upper surface plate 33 downwardly at regular intervals in the circumferential direction. A screw hole or the like fastening hole 33b is formed in each mounting groove portion 33a. The fastening means b is passed through the insertion hole 32a and the fastening hole 33b in a state where the upper end portion of the sealing portion 32 and the mounting groove portion 33a are engaged with each other, ). The transparent glass member 31, the sealing portion 32 and the upper surface plate 33 constitute the side wall of the first washing tub 3.

2 and 3, the bottom portion 34 of the washing tub 34 has a substantially bowl shape with a central depression recessed therein, and a groove portion 34d into which the lower end of the transparent glass member 31 is inserted is formed on the upper surface thereof 2). A fastening portion 34a is formed at a position corresponding to the mounting groove portion 33a of the upper plate 33 on the outer surface of the bottom portion 34 of the washing tub 34. The fastening portions 34a are provided with fastening holes 34b Is formed. The fastening means b is passed through the insertion hole 32a and the fastening hole 34b in a state where the lower end of the sealing portion 32 and the fastening portion 34a are overlapped and the sealing portion 32 is inserted into the bottom portion 34 ). 3 is formed in the washing tub bar portion 34 and the washing water in the first washing tub 3 is discharged to the outside of the apparatus by the drainage unit 9 through the drain hole 34c (See Fig. 2).

The side walls of the first washing tub 3 are connected to the transparent glass members 31 in the circumferential direction by the sealing portions 32 and the upper and lower ends thereof are connected to the upper plate 33 or the washing tub bottom 34 And is divided into three parts of a transparent glass member in a fixed manner.

Since the side wall of the first washing tub 3 is composed of the plurality of transparent glass members 31 as compared with the case where the side wall of the first washing tub 3 is made of resin, for example, Even if the laundry is rubbed during processing, it is not easily broken. In addition, by designing the structure in which the plurality of transparent glass members are connected to each other by the sealing portion, the first washing tub 3 having a large diameter can be manufactured without a special design, and a washing machine having a large washing capacity Can be realized.

It should be noted that the salvage structure of each part is not limited to the above embodiment.

For example, the baffle 10 extending in the vertical direction may be disposed at a plurality of positions along the circumferential direction on the outer circumferential surface of the second washing tub 4, as shown by imaginary lines in Fig. Alternatively, the baffle 10 may be provided on the inner circumferential surface of the first washing tub 3 or on both the outer circumferential surface of the second tub 4 and the inner circumferential surface of the first tub 3.

If the baffle 10 is provided on at least one of the inner circumferential surface of the first washing tub 3 and the outer circumferential surface of the second tub 4 as described above, .

In the present embodiment, the side wall of the first washing tub 3 is constituted by a plurality of transparent glass members 31, a sealing portion 32 and the like, but the side wall of the first washing tub 3 is made of a cylindrical transparent glass member . That is, the first washing tub 3 may be a cylindrical cylinder having a single body. Therefore, there is no need to provide the sealing portion 32 and the leakage preventing effect can be improved.

In the present embodiment, at least a part of the first washing tub 3 is composed of a transparent glass member 31 which is a transparent member. However, the first washing tub 3 is made of an opaque member, It may be a structure in which the inside can not be observed. Furthermore, the transparent member 31 is not limited to a transparent member, and polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC), or the like may be used as the transparent member.

In the present embodiment, the water supply hole 41 is installed only in the upper part of the second washing tub 4, while the water supply hole 41 is disposed in an almost entire area of the side wall of the second washing tub 4, . Water is naturally raised along the inner circumferential surface of the second washing tub 4 by the rotation of the second washing tub 4 so that water is formed only in the upper part of the second washing tub 4 And is discharged to the outside of the cylinder through the water supply hole (41).

In addition, the structure of the upper cover 7 is not limited to the above structure, and may be a folding cover, a double cover, or the like.

But may be modified into various other structures without departing from the gist of the present invention.

1: Washing machine;
2: Washing machine main body;
3: a first washing tub;
4: second washing tub;
5: original plate portion;
10: baffle;
31: transparent glass member (transparent member);
32: sealing portion;
52: stirring blade;
61: electric motor.

Claims (4)

A cylindrical first washing tub constituting a housing of the washing machine main body and opening upwardly and having a bottom;
A second cylindrical washing tub disposed in the first washing tub so as to be freely rotatable at a predetermined interval from the inner circumferential surface of the first washing tub and also serving as a dewatering unit and having a bottom;
A circular plate integrally formed with the second washing tub and having a stirring blade extending radially outward of the second washing tub; And
An electric motor for driving the second washing tub and the disk unit to rotate together; And a washing machine. The method according to claim 1,
Wherein at least a portion of the first washing tub is formed of a transparent member. 3. The method of claim 2,
Wherein the side wall of the first washing tub is composed of a plurality of transparent glass members circumferentially connected by a sealing portion. 4. The method according to any one of claims 1 to 3,
Wherein a baffle is provided on at least one of an inner circumferential surface of the first washing tub and an outer circumferential surface of the second washing tub.

Images