KR101698855B1 - Laundry Machine - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine capable of improving a cabinet base structure to provide a more stable supporting structure, A tub installed inside the cabinet; And a drum rotatably installed inside the tub, wherein the base portion of the cabinet includes a press processing portion formed upwardly protruding from all four sides of the bottom surface, and a press processing portion for storing the washing water leaking from the tub And a water storage portion formed in a shape of being wrapped around the washing tub.

Description

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a washing machine, and more particularly, to a washing machine capable of improving a cabinet base structure of a washing machine to provide a more stable supporting structure.

A typical drum washing machine is provided with a tub for receiving laundry water inside a cabinet forming an external appearance. A drum is rotatably coupled to the inside of the tub to receive the laundry. The drum is rotated by the motor, and vibration of the drum is transmitted to the tub. Therefore, a vibration damping structure such as a spring, a damper, and a balancer is provided to attenuate the vibration.

The tub is installed inside the cabinet by hanging spring or the like, and the motor is installed on the rear surface of the tub to rotate the drum inside the tub. That is, the drum and the tub are connected by the motor installed on the rear side of the tub.

However, in such a conventional drum washing machine, when the drum rotates at a high RPM, the drum is vibrated due to the unbalance of the weight due to the tilting of the laundry. As a result, vibration generated by the drum is transmitted to the tub and the cabinet, causing the tub and surrounding components to vibrate together.

Therefore, it is necessary to improve the support structure so that the coupling state can be stably maintained even when the vibration is transmitted.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a washing machine having a more stable supporting structure by improving the supporting structure with the peripheral parts of the cabinet base of the washing machine.

According to an aspect of the present invention, there is provided a cabinet comprising: a cabinet forming an appearance; A tub installed inside the cabinet; And a drum rotatably installed inside the tub, wherein the base portion of the cabinet includes a press processing portion formed upwardly protruding from all four sides of the bottom surface, and a press processing portion for storing the washing water leaking from the tub And a water storage portion formed in a shape of being wrapped around the washing tub.

The base portion includes a bottom portion defining a bottom surface, and a front frame, a rear frame, and a side frame that are upwardly protruded from and joined to the front, rear, and both side ends of the bottom portion.

The front frame, the rear frame, and the side frames are coupled to each other.

And a tub supporting member for supporting the front and rear of the tub, respectively, wherein the base further comprises a tub supporting part formed on the press processing part and on which the tub supporting member is mounted.

And the tub supporting portion is formed so that the front side of the press processing portion is higher than the rear side.

And a suspension unit composed of first to third cylinder springs and first and second cylinder dampers for attenuating vibrations transmitted to the turbine, wherein the base unit includes a damper for mounting the first and second cylinder damper And a supporting unit.

And the damper supporting portion is formed between both rear ends of the press machining portion and the rear frame.

And the damper supporting portion is formed to be higher than the height of the bottom portion and lower than the height of the press processing portion.

The base portion may further include a lattice bead formed on a back surface of the bottom portion corresponding to a position of the damper supporting portion.

And the base further includes a spring supporter to which the first to third cylinder springs are mounted.

And two spring supporting portions are formed on the front side between the press machining portion and the side frame, and one spring supporting portion is formed at the center between the press machining portion and the rear frame.

And the spring supporting portion is formed to be higher than the height of the bottom portion and lower than the height of the press processing portion.

In an embodiment of the washing machine according to the present invention, the suspension unit may be connected to a driving unit to buffer the vibration of the drum. Conventionally, the suspension unit is connected to the tub to buffer the vibration of the tub and the drum, but the washing apparatus according to the present invention may have a structure in which the vibration of the drum and the tub are separated.

On the other hand, the tub can be supported more rigidly than the drum is supported by the suspension unit. An example in which the tub is supported by a stiffer structure than the suspension unit is as follows.

First, the tub may be integrally formed at least partially in the cabinet.

Second, they may be connected by a screw, a rivet, a rubber bushing, or the like, or they may be fixed and supported by welding, adhesive sealing, or the like. In this case, such a connecting member has a stiffness greater than the stiffness of the suspension unit with respect to the vertical direction, which is the main vibration direction of the drum.

On the other hand, a flexible member may be included to reduce the transmission of vibration of the drum to the tub. The flexible member may be configured to flexibly connect the turbine and the drive unit to prevent leakage of the drive unit and the tub and allow the drive unit to move relative to the tub. Such a flexible member can be made of a rear gasket.

INDUSTRIAL APPLICABILITY As described above, the washing apparatus according to an embodiment of the present invention improves the support structure of the cabinet base, thereby improving the stability of connection with peripheral components.

1 is a partially exploded perspective view of a washing machine according to an embodiment of the present invention;
2 is a perspective view of a base according to the washing machine of FIG. 1;
3 is a perspective view showing the base part and the tub supporting structure according to FIG. 2;
Fig. 4 is a perspective view showing a bottom surface of the base according to Fig. 2; Fig.
Figure 5 is a side cross-sectional view of the base according to Figure 2;
6 is a partial perspective view showing a tub supporting structure of a washing machine according to an embodiment of the present invention.

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

1, a washing machine according to an embodiment of the present invention includes a cabinet 100 forming an external appearance, a tub 200 fixedly supported on the cabinet 100, A bearing housing 500 for supporting the drum 400, a rear gasket 300 and a suspension unit 600 for supporting the tub 200, and the like .

The cabinet 100 includes a base 110 forming a bottom surface, a pair of side panels 120 forming both side surfaces, a rear panel 130 forming a rear surface, and the like Will be described later).

The tub 200 includes a cylindrical front tub 210 and a rear tub 220 and a tub back 230 forming a rear wall of the rear tub 220. The tub 200 is screwed with each other to form a space for accommodating the drum therein do. An inner circumference of the opening portion is connected to the outer periphery of the rear gasket 300 and an inner periphery of the rear gasket 300 is connected to the turbobac 230. The tub back 230 has a through hole through which a rotation shaft 460 to be described later is inserted.

The rear gasket 300 is made of a flexible material so that the vibration of the turbobac 230 is not transmitted to the rear tub 220. The rear gasket 300 is connected to seal the tub back 230 and the rear tub 220, respectively, so that the washing water in the tub 200 is not leaked.

The tub back 230 is vibrated together with the drum 400 when the drum 400 rotates and is separated from the rear tub 220 at a sufficient interval so as not to interfere with the rear tub 220 at this time. Since the rear gasket 300 is made of a flexible material, it allows the turbobac 230 to move relative to the rear tub 220 without interference. The rear gasket 300 may further include a corrugation (not shown) that can be extended to a sufficient length to allow relative motion of the turb back 230.

The drum 400 is composed of a drum front 410, a drum center 420 and a drum bag 430. Balancers 310 and 330 are installed on the front and rear of the drum 400, respectively. The drum bag 430 is connected to and supported by the spider 450, and the spider 450 is connected to the rotating shaft 460. The drum 400 is rotated in the tub 200 by the rotational force transmitted through the rotating shaft 460.

The rotation shaft 460 passes through the turbobac 230 and is directly connected to a motor (not shown). More specifically, the rotor of the motor and the rotary shaft 460 are directly connected. A bearing housing 500 that rotatably supports a rotary shaft 460 is coupled to the rear surface 128 of the turbobac 230 between the motor and the turbobac 230.

A stator (not shown) is fixed to the bearing housing 500, a rotor is installed to surround the stator, and the rotor is directly connected to the rotating shaft 460. At this time, an outer rotor type motor may be used as the motor.

1 and 2, the bearing housing 500 is installed on the base portion 110 of the cabinet 100 by a suspension unit 600. As shown in FIG.

The suspension unit 600 includes three vertical supports and two inclined supports that obliquely support the front and rear directions. The suspension unit is connected to the cabinet base portion 110 in a completely fixed manner and is allowed to allow a certain degree of elastic deformation to allow the drum to move back and forth and to the left and right.

That is, the suspension unit 600 is elastically supported to allow some degree of rotation about its supporting point connected to the base. For such elastic support, the vertically installed suspension may be installed in the base 110 via a rubber bushing.

The vertically installed suspension unit 600 is a first cylinder spring 610, a second cylinder spring 620, and a third cylinder spring 630 elastically buffering the vibration of the drum, Is a first cylinder damper 640 and a second cylinder damper 650 for attenuating the vibration.

In other words, the vibration system including the spring and the damping means may function as a spring to be vertically installed and the damping means may function as a damping means.

As described above, the tub 200 according to the embodiment of the present invention is fixed to the cabinet 100, and the vibration of the drum 400 is buffered and supported by the suspension unit 600. [ The supporting structure of the tub 200 and the drum 400 may be substantially separated from each other and the tub 200 may not be vibrated even when the drum 400 is vibrated.

2 to 4, the base 110 includes a bottom portion 112 forming a bottom surface, a front frame 114 bent upward from the four corners of the bottom portion 112, A rear frame 116, and a side frame 118.

A triangular bead 112a is formed at a portion where the bottom portion 112 meets the front frame 114, the rear frame 116 and the side frame 118, respectively (see FIG. 5). The triangular beads 112a serve to reinforce the strength of the bending portion when each of the frames is formed by bending a part of the four corners of the bottom portion 112. It is also possible to prevent the four corners of the bottom portion 112 from being warped or twisted when the bottom portion 112 and the front frame 114, the rear frame 116, the side frame 118, .

A plurality of triangular beads 112a are formed in the portions where the bottom portion 112 and each frame meet. The triangular beads 112a serve to reinforce the strength of the bent portions when each of the frames is made by bending a part of the four ends of the bottom portion 112. [

A front frame 114, a rear frame 116 and a side frame 118. The front frame 114, the rear frame 116, the side frames 118 and the like are fastened to each other through screwing or spot melting to enhance strength and rigidity.

The presser foot 1120 is formed in the bottom portion 112 by being bent upwardly by press working away from the front frame 114, the rear frame 116 and the side frame 118. [

The presser 1120 is surrounded by the reservoir 1122 to form the reservoir 1122 and the reservoir 1122 is formed lower than the surrounding bottom 112 to store the wash water to be leaked. A float sensor (not shown) is provided on the water storage part 1122 to sense the water level of the water that has leaked to the water storage part 1122.

For example, the float sensor can be controlled to sense a leak situation when about 500cc of water is leaked.

When the washing water overflows from the detergent dispenser, the water leaks through the tub 200 and collects in the bottom part 1122. At this time, the water collecting part 1122b may be formed at one side of the water storage part 1122 corresponding to the position where the water flows down from the detergent dispenser on the outer side of the tub 200. [ The water collecting part 1122b may extend from one side of the reservoir part 1122 toward the front frame 114 in consideration of the position of the detergent dispenser and may be formed biased toward the side frame 118. [

A tub supporting portion 1124 protruding inward from the reservoir portion 1122 is provided at the front and rear of the presser foot 1120 and a damper supporting portion 1126 is provided at both sides of the rear portion of the presser foot 1120 do. In addition, a spring supporting portion 1128 is provided at both front and rear centers of the presser foot 1120.

As shown in FIG. 3, the tub supporting portion 1124 is formed with a press on the upper surface 1120 of the tub supporting member 240 for supporting the tub 200. The tub supporting portion 1124 may be formed such that the front side is higher than the rear side or the front side is the same height as the rear side according to the inclination of the tub 200. [

The tub supporting member 240 is stably mounted to the tub supporting portion 1124 by screwing or the like. Even if the washing water leaks from the tub 200 in a state where the tub supporting member 240 is mounted, the tub supporting portion 1124 is formed on the pressing lid 1120 so that it is stored in the reservoir portion 1122 and the tub supporting member 240 So that the installation stability of the tub supporting member 240 can be secured.

2, the damper supporting portion 1126 is formed between both ends of the rear press portion 1120 and the rear frame 116. As shown in Fig. The damper supporting portion 1126 may be formed at the same height as the bottom surface of the base portion 110 or may be formed to be somewhat higher than the bottom surface of the base portion 110 have.

The damper supporting portion 1126 is formed on the rear side of the presser foot 1120 and separated from the bottom portion 1122 so that the damper supporting portion 1126 is not affected by the washing water leaking, Stability can be ensured.

As shown in FIG. 4, a strength reinforcing lattice bead 1126a is formed on the back surface of the base 110 in correspondence with the position of the damper supporting portion 1126.

Since the lattice bead 1126a is formed in a lattice shape so as to protrude outward from the back surface of the base portion 110 and the center of gravity of the lattice bead 1126a is located behind the base portion 110, So as to reinforce the strength at the time of collision.

In addition, a spring supporting portion 1128 to which the first to third cylinder springs are mounted is formed in the base portion 110.

The spring support portion 1128 is positioned to correspond to the positions of the first to third cylinder springs. That is, two pieces are formed between the press machining portion 1120 and the side frame 118 so as to be offset toward the front side, and one is formed at the center between the press machining portion 1120 and the rear frame 116. It is preferable that the spring supporting portion 1128 is formed to be higher than the height of the bottom portion 112 and lower than the press processing portion 1120. The spring support portion 1128 is formed at a position where the first and second cylinder springs 610 and 620 are mounted at the same height and the place where the third cylinder spring 630 is mounted is formed at a position higher than the other two positions .

As described above, the washing apparatus according to an embodiment of the present invention has an effect of improving the installation stability of peripheral parts by improving the water storage structure and supporting structure of the base part.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. And such changes are within the scope of the appended claims.

100: cabinet 110: base portion
112 Bottom portion 112a: triangular bead
1120: Press processing section 1122:
1124: a tub supporting part 1126: a damper supporting part
1128: Spring support part 200:
240: tub supporting member 300: rear gasket
400: drum 500: bearing housing
600: Suspension unit

Claims (15)

A cabinet forming an appearance;
A tub installed inside the cabinet and fixedly fixed to the cabinet;
A drum rotatably installed inside the tub;
A detergent dispenser provided above the front of the tub;
A rotating shaft connected to the drum;
A bearing housing rotatably supporting the rotation shaft;
A motor connected to the rotating shaft to rotate the rotating shaft;
A suspension unit coupled to the bearing housing and including a cylinder damper to buffer vibrations of the drum; And
And a tub supporting member for supporting the front and rear of the tub, respectively,
The base portion of the cabinet
A bottom portion forming a bottom surface;
A front frame, a rear frame, and a side frame that are upwardly protruded from and joined to the front, rear, and both side ends of the bottom portion;
A pressing portion formed upwardly protruded from the bottom portion and spaced inwardly from the front frame, the rear frame, and the side frame;
A water storage portion formed to be wrapped around the press processing portion to store wash water leaking from the tub;
A tub supporting part formed on the press working part and on which the tub supporting member is mounted; And
And a damper supporting part formed between both rear ends of the press working part and the rear frame so that the cylinder damper is mounted,
The water storage unit includes a water collection unit extending from one side of the water storage unit to the front frame corresponding to a position where water is dropped from the detergent dispenser and a sensor installation unit to which a sensor for sensing the water level of the water stored by the water storage unit is mounted Wherein the washing machine comprises: delete delete delete The method according to claim 1,
Wherein the tub supporting portion is formed so that the front side of the press processing portion is higher than the rear side. The method according to claim 1,
The suspension unit may further include first to third cylinder springs for attenuating vibrations transmitted to the turbine,
Wherein the cylinder damper comprises first and second cylinder dampers,
Wherein the damper supporting portion is formed to mount the first and second cylinder dampers. delete The method according to claim 1,
Wherein the damper supporting portion is formed to be higher than the height of the bottom portion and lower than the height of the press processing portion. The method according to claim 1,
Wherein the base further comprises a lattice bead formed on a back surface of the bottom portion corresponding to a position of the damper supporting portion. The method according to claim 6,
Wherein the base further comprises a spring supporting portion to which the first to third cylinder springs are mounted. 11. The method of claim 10,
Wherein two of the spring supporting portions are formed on the front side between the press working portion and the side frame, and one is formed at the center between the press working portion and the rear frame. 11. The method of claim 10,
Wherein the spring supporting portion is formed to be higher than the height of the bottom portion and lower than the height of the press processing portion. delete The method according to claim 1,
Wherein the tub is rigidly supported such that the drum is supported by the suspension unit. The method according to claim 1,
Sealing the rear portion of the tub to prevent leakage from at least one of the rotary shaft, the bearing housing, and the motor from the turbine, wherein the rotary shaft, the bearing housing, and the motor are allowed to move relative to the tub And a flexible member for supporting the laundry.

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