WO2016010326A1

WO2016010326A1 - Washing machine

Info

Publication number: WO2016010326A1
Application number: PCT/KR2015/007274
Authority: WO
Inventors: 채애경; 김영호
Original assignee: 엘지전자 주식회사
Priority date: 2014-07-16
Filing date: 2015-07-14
Publication date: 2016-01-21
Also published as: KR20160009290A; CN107075771A; CN107075771B; US20170198427A1; KR102241041B1

Abstract

The present invention comprises: an inner tub for receiving laundry; a first pulsator rotatably disposed in the inner tub; a body which has a ring shape and is coupled to the first pulsator; and a second pulsator having a cover which is disposed on the body, wherein each of the body and the cover has multiple arc-shaped members arranged in order along a circle, thereby facilitating the service work by the second pulsator.

Description

washer

The present invention relates to a washing machine, and more particularly, to a washing machine in which a pulsator is rotatably disposed.

In general, a washing machine is a machine that provides a mechanical action by using electricity to remove stains on clothes, bedding, etc. (hereinafter, referred to as cloth). You fall off the gun. Washing machine takes a long time to remove the stain on the cloth only by the action of the detergent, and when the mechanical action such as friction or vibration by forcibly generating water flow can be easily removed.

The washing machine can be largely divided into a two-chamber washing machine, a pulsator washing machine and a drum washing machine.

In the pulsator type washing machine, an inner tub in which a cloth is accommodated is rotatably installed inside the outer tub where water is freshly formed, and a pulsator is rotatably installed in the inner lower portion of the inner tub to form a rotary flow stream, and the upper surface of the outer tub and The upper surface of the inner tub is opened so that the fabric can enter and exit the upper side of the washing machine.

[Preceding technical literature]

[Patent Documents]

KR 10-1275128 B1 (June 14, 2013)

The washing machine according to the prior art includes a single donut-shaped washing plate, and when the pulsator is taken out for the service operation of the pulsator, the second pulsator interferes with the mechanism installed on the inner tank, The external drawing operation of the two pulsator is not easy, and there is an inconvenience of disassembling the mechanism installed in the upper part of the inner tank to draw out the second pulsator.

The present invention for solving the above problems is the inner tub and the housing is accommodated; A first pulsator disposed rotatably on the inner tub; And a second pulsator having a ring shape and a body coupled to the first pulsator, and a cover disposed above the body, each of the body and the cover having a plurality of arc-shaped members sequentially disposed along a circle. .

It may include a balancer installed on the upper portion of the inner tub, the outer diameter of the first pulsator may be smaller than the inner diameter of the balancer, the outer diameter of the second pulsator may be larger than the inner diameter of the balancer.

The present invention is an inner tub in which the cloth is accommodated; A balancer installed at an upper portion of the inner tub; A first pulsator having a main pulsator plate rotatably disposed on the inner tub, and a main pulsator cover disposed above the main pulsator plate; The first pulsator includes a second pulsator having a ring shape having a hollow portion facing at least a portion of the main pulsator plate and having a body coupled to the main pulsator plate and a cover disposed above the body. The outer diameter of the balancer is smaller than the inner diameter of the balancer, the outer diameter of the second pulsator is larger than the inner diameter of the balancer, each of the body and the cover is a plurality of arc-shaped members are disposed sequentially along the circle.

Each of the plurality of arc-shaped members may have a central angle of greater than 90 ° and less than 180 °.

A plurality of arc-shaped members of the body may be formed with connecting portions coupled to the connectors, respectively.

A plurality of arc-shaped members of the body may be formed with fastening portions fastened by fastening members, respectively.

A plurality of arc-shaped members of the body may be formed with fastening portions fastened by the first pulsator and the fastening member, respectively.

The present invention can remove the second pulsator and withdraw it to the outside of the inner tub without the need to disassemble a mechanism such as a balancer installed on the inner tub when the service operation of the second pulsator, the service operation of the second pulsator There is this convenient advantage.

In addition, when assembling the second pulsator, a plurality of arc-shaped members of the second pulsator can be inserted into the inner tub and assembled inside the inner tub while a balancer or the like is installed in the inner tub. This has a high advantage.

1 is a cross-sectional view showing the main parts of the washing machine according to an embodiment of the present invention;

2 is an exploded perspective view showing a pulsator of an embodiment of a washing machine according to the present invention;

3 is an exploded perspective view when the body and the cover illustrated in FIG. 2 are disassembled,

Figure 4 is a pulsator bottom view of one embodiment of a washing machine according to the present invention.

5 is a cross-sectional view of the second pulsator coupling of another embodiment of the washing machine according to the present invention.

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

1 is a cross-sectional view showing the main configuration of a washing machine according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing a pulsator of an embodiment of the washing machine according to the present invention, Figure 3 is a body and cover shown in Figure 2 Figure 4 is an exploded perspective view of each when disassembled, Figure 4 is a pulsator bottom view of one embodiment of a washing machine according to the present invention.

The washing machine according to the present embodiment includes an inner tub 2 in which a cloth is accommodated; And a pulsator 4 disposed on the inner tub 2.

The inner tub 2 may be located inside the casing 6. The casing 6 may form the appearance of the washing machine. The casing 6 may include a base 11, a casing body 12 disposed above the base 11 to form an outer circumference of the washing machine, and a top plate 13 disposed above the casing body 12. Can be. The top plate 13 may be formed with a cloth entrance 14 through which the cloth can enter and exit. The lid 15 may be installed at the top plate 13 to open and close the gun entrance 14. The casing 6 may be provided with a control panel 16 for operating the washing machine.

The outer tub 8 may be disposed inside the casing 6. The outer tub 8 may contain wash water for washing the fabric. The outer tub 8 may be formed with an opening 21 through which the fabric can enter and exit. The outer tub 8 may be provided with a motor 22 capable of generating a driving force for rotating the pulsator 4. A washing shaft may be connected to the pulsator 4, and a dehydration shaft may be connected to the inner tub 2. The washing machine may further include a clutch mechanism (not shown) that transmits the rotational force of the motor 22 only to the laundry porcelain during the washing shaft and the dehydration shaft or together with the washing shaft and the dehydration shaft.

The inner tub 2 may be located inside the casing 6. The inner tub 2 is formed smaller in size than the outer tub 8 and may be disposed inside the outer tub 8. The outer tub 8 may function as an outer tub in which the washing water is contained, and the inner tub 2 may function as an inner tub washed by the carriage wash water. The inner tub 2 may have an open top surface. The inner tub 2 may include an inner tub base 31 having an open top surface, and an inner tub body 32 coupled to the upper portion of the inner tub base 31. The inner tub body 32 may be formed in a hollow cylindrical shape. The inner tub body 32 may be formed with a hand 33 to be washed out. The balancer 34 may be installed on the upper portion of the inner tub body 32. The balancer 34 may be a mechanism installed on the upper portion of the inner tub 2. The balancer 34 may be an auto balancer in which fluid such as salt water is contained, and may minimize vibration of the inner tub 2 at the upper portion of the inner tub 2. The balancer 34 may have an overall shape in a ring shape. The balancer 34 may be partially located at an inner upper portion of the inner tub body 32. The inner diameter D2 of the balancer 34 may be smaller than the inner diameter of the inner tub body 32.

The pulsator 4 may be rotated inside the inner tub 2 to form a rotational water flow. The pulsator 4 may consist of a combination of at least two members.

The pulsator 4 includes a first pulsator 52; The second pulsator 54 is included. The pulsator 4 may have an outer diameter larger than the inner diameter D2 of the balancer 34. The outer diameter D1 of the first pulsator 52 may be smaller than the inner diameter D2 of the balancer 34.

The first pulsator 52 may be a main pulsator that is rotated at the inner bottom of the inner tub 2. The first pulsator 52 may be rotatably disposed on the inner tub 2, and may be positioned approximately in the center of the inner bottom of the inner tub 2. The first pulsator 52 may be formed in a disk shape as a whole, and may include at least one wing portion protruding upward. The first pulsator 52 may be composed of a combination of at least two members different in material from each other. The first pulsator 52 may have a main pulsator plate 60 rotatably disposed on the inner tub 2, and a main pulsator cover 70 disposed above the main pulsator plate 60. have. The main pulsator cover 70 may cover the upper surface of the main pulsator plate 60, and may cover the main supporter plate 60 when viewed from above.

The main pulsator plate 60 and the main pulsator cover 70 may be formed of different materials. The main pulsator plate 60 positioned below the main pulsator plate 60 and the main pulsator cover 70 may be formed of a synthetic resin material. The main pulsator plate 60 and the main pulsator cover 70 positioned above the main pulsator cover 70 may be formed of a metal material. The main pulsator plate 60 may be formed of a polypropylene (PP) material. The main pulsator cover 70 may be formed of steel or aluminum.

The main pulsator plate 60 may include a disc body 61. The main pulsator plate 60 may be formed with a hand 62 through which the wash water can pass. The main pulsator plate 60 may be provided with a protrusion 63 protruding upward. The hub portion 64 may be formed to protrude upward in the center of the main pulsator plate 60. The hub portion 64 may have a rotating shaft through hole 65 through which the rotating shaft passes. A plurality of protrusions 63 may be formed radially with respect to the hub portion 64. The hand 62, the protrusion 63, and the hub portion 64 of the main pulsator plate 60 may be formed on the disc body 61 of the main pulsator plate 60.

The main pulsator cover 70 may have a shape and structure similar to that of the main pulsator plate 60. The main pulsator cover 70 may include a disc 71. The main pulsator cover 70 may be formed with a hand 72 through which the wash water can pass. The main pulsator cover 70 may have a wing portion 73 protruding upward. The wing 73 may have the same overall shape as the protrusion 63 of the main pulsator plate 60. The wing 73 may be formed larger than the protrusion 63 of the main pulsator plate 60. The wing 73 may be seated on the protrusion 63 of the main pulsator plate 60, and may be mated with the protrusion 63 of the main pulsator plate 60. The hub portion 74 may be formed to protrude upward in the center of the main pulsator cover 70. The hub portion 74 of the main pulsator cover 70 may be larger than the hub portion 64 of the main pulsator plate 60. The hub portion 74 of the main pulsator cover 70 may be provided with a mounting hole in which a rotating shaft holder (not shown) for fixing the rotating shaft penetrating the main pulsator plate 60 is mounted. The hand 72, the wing 73, and the hub 74 of the pulsator cover 70 may be formed on the disc 71 of the main pulsator cover 70.

The second pulsator 54 may form a rotational flow together with the first pulsator 52. The second pulsator 54 may be located around the first pulsator 54. The second pulsator 54 may surround the outer circumference of the first pulsator 54. The first pulsator 52 and the second pulsator 54 may be positioned inside and outside with respect to the central axis of the inner tub 2. At least a part of the second pulsator 54 may be located between the outer circumferential surface of the first pulsator 52 and the inner wall surface of the inner tub 2. The outer diameter D3 of the second pulsator 54 may be the outer diameter of the pulsator 4 and may be larger than the inner diameter D2 of the balancer 34. The second pulsator 54 may be combined with the first pulsator 52 and may be rotated together with the first pulsator 52. The second pulsator 54 may be separated from the first pulsator 52. The second pulsator 54 may be separated from the first pulsator 52 when the pulsator 4 is disassembled.

The second pulsator 54 may be formed in a hollow annular shape as a whole. The second pulsator 54 may include at least one wing protruding upward. The second pulsator 54 may be composed of a combination of at least two members different in material from each other. The second pulsator 54 may have a ring shape and a body 80 coupled to the first pulsator 52 and a cover 90 disposed above the body 80.

The body 80 may have a ring shape in which a hollow portion O1 facing at least a portion of the main pulsator plate 60 is formed. The cover 90 may have a shape corresponding to that of the body 80. The cover 90 may be formed in a ring shape like the body 80. The cover 90 may have an annular shape in which the hollow portion O2 is formed, such as the body 80. The cover 90 may cover the top surface of the body 80 and may cover the body 80 when viewed from above. The body 80 may be a sub pulsator plate in contrast to the main pulsator plate 60, and the cover 90 may be a sub pulsator cover in contrast to the main pulsator cover 70. In the pulsator 4, when the main pulsator plate 60 is an inner pulsator plate, the body 80 may be an outer pulsator plate. In the pulsator 4, when the main pulsator cover 70 is an inner pulsator cover, the cover 90 may be an outer pulsator cover.

The body 80 and the cover 90 may be formed of different materials from each other. The body 80 disposed below the body 80 and the cover 90 may be formed of a synthetic resin material. The cover 90 disposed above the body 80 and the cover 90 may be formed of a metal material. The body 80 may be formed of a polypropylene (PP) material, and the cover 90 may be formed of steel or aluminum.

The cover 90 may be fitted and coupled to the body 80, and a fitting portion into which a portion of the cover 90 may be inserted may be formed in the body 80.

Each of the body 80 and the cover 90 may be composed of a combination of a plurality of members. When disassembling the second pulsator 54, a plurality of members may be separated and drawn out of the washing machine. Each of the body 80 and the cover 90 may be inserted into the washing machine when the second pulsator 54 is mounted, and may be coupled to each other inside the inner tub 2.

Each of the body 80 and the cover 90 may include a plurality of arc-shaped members, and the plurality of arc-shaped members may be sequentially disposed along the circle (O).

The body 80 may have a plurality of arc-shaped

members

81, 82, 83 arranged sequentially along the circle O, and when the plurality of arc-shaped

members

81, 82, 83 are joined, the body 80 may be annular as a whole. Each of the plurality of arc-shaped

members

81, 82, 83 of the body 80 may be a unit body, and a plurality of unit bodies may be sequentially combined to form one body 80. The body 80 may have an opening O1 formed between the plurality of

arc shape members

81, 82, 83 when all of the plurality of

arc shape members

81, 82, 83 are combined.

The cover 90 may include a plurality of arc-shaped

members

91, 92, and 93 sequentially disposed along the circle O, such as the body 80, and a plurality of arc-shaped

members

91, 92, and 93. ), The cover 90 may be annular as a whole. Each of the plurality of arc-shaped

members

91, 92, 93 of the cover 90 may be a unit cover, and the plurality of arc-shaped

members

81, 82, 83 of the body 80 may be annular. When combined, these unit covers may constitute one cover 90. The cover 90 may have an opening O2 formed between the plurality of arc-shaped

members

91, 92 and 93 like the body 80.

The plurality of arc-shaped

members

81, 82, 83 of the body 80 may be directly coupled to each other and integrated. A plurality of arc-shaped

members

81, 82, 83 of the body 80 may be formed at the respective ends thereof. When a plurality of arc-shaped members of the body 80 are directly coupled to each other, protrusions may protrude from one of the two arc-shaped members adjacent to each other, and the other one of the two arc-shaped members adjacent to each other is joined. The protrusion may be provided with a protrusion insertion hole into which the protrusion is inserted. The body 80 may minimize the number of parts when any one of two adjacent ones and the other one are directly connected by protrusions and protrusion insertion holes.

The body 80 may further include a connector 86 connecting the plurality of arc-shaped members. The plurality of arc-shaped

members

81, 82, and 83 of the body 80 may be formed with

connection portions

84 and 85 coupled to the connector 86, respectively.

Connections

84 and 85 may be formed at each end of each of arc-shaped

members

81, 82, 83. The two arc shaped members can be connected by one connector 86 and the length of the arc can be increased when connected to the connector 86. The body 80 may gradually become an arc shape closer to the ring shape as the number of arc-shaped members connected in sequence increases. The connecting

portions

84 and 85 and the connector 86 can be inserted into and coupled to the projection

fitting holes

86A and 86B formed on one of the

projections

84A and 85A formed on one of the two.

A plurality of arc-shaped

members

81, 82, 83 of the body 80 may be formed with fastening portions 87 fastened by fastening members S1 such as a first pulsator 52 and a screw, respectively. The fastening portion 87 may be formed to protrude on the inner surface of the inner surface and the outer surface of the arc-shaped

members

81, 82, 83 of the body 80. The fastening part 87 may protrude into the hollow portion O1 of the body 80 when a plurality of arc-shaped

members

81, 82, 83 are combined and combined into one body 80. The fastening member 87 may have a fastening member fastening hole through which the fastening member S1 penetrates. On the other hand, the first pulsator 52, in particular the main pulsator plate 60, the inner fastening portion 69 is fastened to the fastening member (S1) is formed in a position corresponding to the fastening portion 87 of the body 80 Can be.

Protrusions 88 may be formed in each of the plurality of arc-shaped

members

81, 82, 83 of the body 80. The protrusion 88 may be formed long along the circumferential direction of the body 80. The protrusion 88 may have a higher height toward the radially outer side of the body 80. A plurality of protrusions 88 of the body 80 may be formed in each of the arc-shaped

members

81, 82, 83 of the body 80.

Each of the plurality of arc-shaped

members

81, 82, 83 of the body 80 may be recessed with a fitting portion 89 in which a portion of the arc-shaped member of the cover 90 is inserted and fitted. The fitting portion 89 may be formed long along the circumferential direction of the body 80. When the body 80 is a plurality of arc-shaped

members

81, 82, 83 are all coupled, the fitting portion 89 may be formed in a ring shape as a whole.

Each of the plurality of arc-shaped

members

81, 82, 83 of the body 80 may have a central angle θ ° greater than 90 ° and less than 180 °. In the body 80, three arc-shaped

members

81, 82, and 83 may be sequentially coupled. Three arc-shaped

members

81, 82, 83 can constitute one body 80 when joined. The three arc-shaped

members

81, 82, and 83 may all have the same length, have the same structure, and may be part common. The body 80 may have an arc shape closer to the ring shape as the number of arc-shaped members to be coupled increases, and may be annular when all the arc-shaped

members

81, 82, and 83 are combined. have.

Each of the plurality of arc-shaped

members

91, 92, 93 of the cover 90 may have a central angle θ ° greater than 90 ° and less than 180 °. The cover 90 may have the same number of bodies 80 and arc-shaped members. When the body 80 includes three arc shaped

members

81, 82, 83, the cover 90 may also include three arc shaped

members

91, 92, 93. The arc-shaped member of the cover 90 may be fitted to and coupled to the arc-shaped member of the body 80. The arc shaped

members

81, 82, 83 of the body 80 may be lower arc shaped members, and the arc shaped

members

91, 92, 93 of the cover 90 may be upper arc shaped members. have. The upper arc-shaped member may correspond 1: 1 with the lower arc-shaped member. The upper arc-shaped member may be assembled or disassembled into the second pulsator 54 in a state of being integrally coupled with the lower arc-shaped member.

Each of the arc shaped

members

91, 92, 93 of the cover 90 has an outer wing 98 corresponding to the protrusions 88 formed on the arc shaped

members

81, 82, 83 of the body 80. ) May be formed. The outer wing 98 may be located above the protrusion 88 of the body 80. The outer wing 98 may be larger than the protrusion 88 of the body 80, and may be mutually mated with the protrusion 88 of the body 80. The outer wing portion 98 of the cover 90 may be formed long in the circumferential direction of the cover 90. A plurality of outer wing portions 98 of the cover 90 may be formed on each of the arc-shaped

members

91, 92, 93 of the cover 90.

In the washing machine of the present embodiment, a plurality of arc-shaped members of the body 80 may be fastened to each other by a fastening member S2 such as a screw, and the fastening is coupled to each of the arc-shaped members of the body 80 by the fastening member S2. Portions 84 'and 85' may be formed.

The fastening portions 84 'and 85' may be formed with a first fastening portion 84 'formed at one side of each arc-shaped member and a second fastening portion 85' formed at the other side of the arc-shaped member.

The body 80 has the first fastening portion 84 'formed on any one of the plurality of arc-shaped members 82' in the vertical direction with the second fastening portion 85 'formed on the other 83 of the plurality of arc-shaped members. The fastening member S2 is sequentially fastened to the fastening hole 84A 'formed in the first fastening portion 84' and the fastening hole 85A formed in the second fastening portion 85 '. Two adjacent arc-shaped

members

82 and 83 may be combined. In this case, a separate connector like the first embodiment of the present invention may not be necessary.

Claims

An inner tub in which the gun is accommodated;

A first pulsator disposed rotatably on the inner tub;

A second pulsator having a ring shape and having a body coupled to the first pulsator, and a cover disposed above the body,

Each of the body and the cover has a plurality of arc-shaped members are sequentially arranged along a circle.
The method of claim 1,

Each of the plurality of arc-shaped members has a central angle greater than 90 ° and less than 180 °.
The method of claim 1,

It includes a balancer installed on the upper portion of the inner tub,

The outer diameter of the first pulsator is smaller than the inner diameter of the balancer,

The outer diameter of the second pulsator is larger than the inner diameter of the balancer.
The method of claim 1,

Washing machine is formed in each of the plurality of arc-shaped members of the body are connected to the connector coupled.
The method of claim 1,

Washing machine is formed in each of the plurality of arc-shaped members of the body fastening portion to be fastened by a fastening member.
The method of claim 1,

Washing machine is formed in each of the plurality of arc-shaped members of the body fastening portion to be fastened by the first pulsator and the fastening member.
An inner tub in which the gun is accommodated;

A balancer installed at an upper portion of the inner tub;

A first pulsator having a main pulsator plate rotatably disposed on the inner tub, and a main pulsator cover disposed above the main pulsator plate;

And a second pulsator having a ring shape having a hollow portion facing at least a portion of the main pulsator plate and having a body coupled to the main pulsator plate and a cover disposed above the body.

The outer diameter of the first pulsator is smaller than the inner diameter of the balancer,

The outer diameter of the second pulsator is larger than the inner diameter of the balancer,

Each of the body and the cover has a plurality of arc-shaped members are arranged sequentially along the circle.
The method of claim 7, wherein

Each of the plurality of arc-shaped members has a central angle greater than 90 ° and less than 180 °.
The method of claim 7, wherein

Washing machine is formed in each of the plurality of arc-shaped members of the body are connected to the connector coupled.
The method of claim 7, wherein

Washing machine is formed in each of the plurality of arc-shaped members of the body fastening portion to be fastened by a fastening member.
The method of claim 7, wherein

Washing machine is formed in each of the plurality of arc-shaped members of the body fastening portion to be fastened by the first pulsator and the fastening member.