KR20010009552A - A structure of noise prevention for washer - Google Patents

Abstract

PURPOSE: A noise preventing structure of a washing machine is provided to prevent the noise from being leaked from an outer case when the washing and dehydrating processes are accomplished. CONSTITUTION: A tub is installed in the interior of an outer case, and a motor portion is mounted at the lower portion of the tub. A silent base is installed on the bottom surface of the outer case. A hole through which the motor portion can be passed is formed at the central portion of the silent base. A leg portion separates the outer case and the ground around the silent base. The leg portion supports the load of a washing machine. A noise preventing portion is formed in the vicinity of the hole of the silent base so as to be curved. The noise preventing portion interrupts the leaked noise.

Description

A structure of noise prevention for washer

The present invention relates to a noise preventing structure of a washing machine for preventing noise leaking from an out case during washing and dehydrating stroke in a fully automatic washing machine, and particularly, by changing the shape of the silent base located under the out case to bend from the bottom of the out case. The present invention relates to a noise preventing structure of a washing machine for reducing the noise of a washing machine by blocking leakage leaks.

In general, a washing machine is a machine that removes stains on clothing. When it is put on clothing, it is removed from the fibers by the chemical action of detergent when put in the washing liquid, but it takes a long time by the action of detergent alone. Applying a mechanical action increases the speed at which the time is missing, it is the role of the washing machine to provide such a mechanical action.

In the washing operation control of the washing machine, first, by detecting the quantity of clothes or the like put into the washing tank, if the quantity is determined, the water flow, the detergent, and the total washing time are set according to the quantity, and then the pulsator is rotated in reverse with the whole washing time. Vortex the water through the laundry to perform the laundry administration to separate the stains on the laundry by friction with the laundry.

Next, when the washing administration is completed, the turbid water is discharged and the fresh water is supplied from the washing tank to perform a rinsing cycle for rinsing for the number of times already set in the system. When the rinsing stroke is completed, the water in the washing tank is discharged and the induction motor is rotated at a high speed at a predetermined speed to remove the laundry water by centrifugal separation to perform dehydration stroke.

Among the above washing machines, the automatic washing machine, in particular, first puts laundry and detergent into a washing tank and sets a switch to supply water, dewatering, draining, intermediate dehydration ("water supply-rinsing-draining" ... "" repetition…)-dehydration-stop The washing machine is equipped with the equipment to do all the processes automatically.

In the conventional fully automatic washing machine, as shown in FIG. 1, a silent base 2 is installed on the bottom surface of the out case 1, and four corner portions of the silent base 2 are provided. It is attached with four legs 3 which can withstand the load of the washing machine while separating the out case 1 and the ground from each other.

That is, the silent base 2 has a reinforcing function for supporting the leg 3, and the cross-sectional shape is also simply designed as shown in FIG. 2 to serve only as a structure of the leg 3 have.

Meanwhile, FIG. 3A is a graph showing noise values leaked to the outside through the bottom of the silent base 2, and as shown in FIG. 3B, the bottom of the silent base 2 is in the order of ①, ②, ③, and ④. We looked at the change in noise by blocking it in turn.

As a result, if the bottom portion of the silent base 2 is not blocked at all, and then the first, second, third, and fourth blocks are sequentially blocked, the noise gradually decreases. As shown in FIG. It can be seen that the noise is significantly reduced when blocking all of ②, ③, ④.

According to the experiment, when blocking ①, ②, ③, ④ of the silent base 2, the contribution of the noise leaking to the outside through the silent base 2 is about 4 dB, which can not be ignored in the noise of the entire washing machine. It can be seen that it affects.

Therefore, conventionally, the silent base 2 is installed in the lower part of the outer case 1, and only the structural design under the force of the leg 3 cannot solve the noise generated in the outer case 1. There is this.

The present invention has been made to solve the above-described problems of the prior art, the object of which is to prevent the leakage noise leaking to the outside of the outer case by deforming the structure of the silent base installed on the bottom of the outer case of the washing machine. The noise reduction structure of the washing machine can be provided.

In addition, the additional object of the present invention by forming a plurality of water holes in the bottom portion of the silent base noise of the washing machine can be prevented from water leakage in the bottom of the outer case while preventing the leakage noise of the washing machine by the structural change of the silent base. To provide a preventive structure.

1 is a bottom view showing a silent base structure of a fully automatic washing machine according to the prior art,

2 is a cross-sectional view taken along the line A-A of FIG.

Figure 3a is a graph showing the noise level leaked to the outside by the silent base structure according to the prior art,

FIG. 3B is a view showing the bottom of the silent base in order to determine the noise level according to the structure of the silent base in FIG. 3A;

4 is a bottom view of a washing machine showing a first embodiment of the noise prevention structure of the washing machine according to the present invention;

5 is a cross-sectional view taken along line B-B of FIG. 4;

6 is a sectional view showing a second embodiment of the present invention.

<Explanation of symbols about main part of drawing>

10: out case 20: motor unit

30: tub 40, 50: silent base

40 ': support hole 41, 51: bend

41a, 51a: first bent part 41b, 51b: second bent part

51c: third bend 42, 52: water hole

L1, L2: Leg

According to a first aspect of the noise suppression structure according to the present invention for solving the above problems, a tub installed inside the outer case and mounted on the lower portion of the motor, and the bottom surface of the outer case; A silent base installed in the center and having a hole enough to allow the motor to pass therethrough, and a leg part installed to support a washing machine load while spaced out from each other in the outer case and the ground on the four sides of the silent base; It is formed to be bent up and down around the hole of the silent base, and includes a noise prevention portion to block the leakage noise.

In addition, according to the second aspect of the present invention, a plurality of water holes are formed in the silent base to give a gradient toward the ground so that water flowing down during washing does not accumulate.

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

First, FIG. 4 is a bottom view of the washing machine in which the first embodiment of the noise prevention structure of the washing machine according to the present invention is shown, FIG. 5 is a cross-sectional view of the BB line of FIG. 4, and FIG. 6 is a second embodiment of the present invention. It is a cross section.

Next, referring to FIGS. 4 to 5, a tub (not shown) installed inside the outer case 10 and having the motor unit 20 mounted thereon, and the out case ( 10 and a silent base 40 having a support hole 40 ′ formed in the center thereof to allow the motor unit 20 to be supported at the time of packaging the product. Four sides of the corner portion 40 is made of a leg (L1) attached to withstand the load of the washing machine while being spaced apart from the ground;

The silent base 40 has a bent portion 41 formed around the support hole 40 'so that the leaked noise can be reflected back to the inside and extinguished, giving a gradient toward the lower end thereof, and the water flowing down during washing. A plurality of water holes 42 are formed so as not to accumulate.

That is, in the silent base 40, a portion close to the support hole 40 ′ protrudes toward the ground, and is connected to the first bent portion 41a and protrudes from the first bent portion 41a. The second bent portion 41b protrudes toward the washing machine so that the directions are opposite to each other. In addition, the silent base 40 has a plurality of water holes 42 formed in an area except the second bent portion 41b, ie, an area protruding toward the ground, to prevent water from accumulating in the outer case 10.

Meanwhile, FIG. 6 shows a second embodiment of the present invention, which is configured almost similarly to the first embodiment described above, but the shape of the silent base 50 is different from that of the first embodiment.

That is, the legs (L2) is attached to the four corners of the silent base 50, the bent portion 51 is formed in multiple bends to improve the function that the leakage noise is reflected and disappeared to the inside is formed, A water hole 52 is formed in a portion of the bent portion 51 of the silent base 50 that protrudes toward the ground.

The bent part 51 of the silent base 50 has a first bent part 51a protruding toward the ground and a second and third bent parts 51b and 51c protruding toward the washing machine; The second and third curved portions 51b and 51c are formed to have different protruding heights so as to protrude stepwise toward the washing machine.

As in the above-described first and second embodiments, the shape of the bent portions 41 and 51 of the silent bases 40 and 50 may be variously changed in order to improve the blocking effect of the leakage noise.

The operation of the present invention configured as described above, the silent base (40, 50) is installed on the bottom surface of the outer case 10 for reinforcement and noise prevention, the silent base (40, 50) of the tub when the product packaging A support hole 40 'is formed to allow the motor unit 20 mounted on the lower part to be supported, and at the same time, the support hole 40' is bent in multiples to block noise. The bends 41 and 51 are formed as much as possible.

In addition, the legs (L1, L2) are attached to the four corners of the silent base (40, 50) to withstand the load of the washing machine to separate the bottom surface of the washing machine from the ground.

In particular, since the bent portions 41 and 51 of the silent bases 40 and 50 are formed to multi-protrude toward the washing machine or the ground as shown in FIGS. 5 and 6, the radiated sound does not leak out to the outside again. Reflected and extinguished, leakage noise can be blocked.

In addition, since the plurality of water holes 42 and 52 are formed in the silent base 40 and 50 so that the water flowing down during washing is discharged to the outside by giving a gradient toward the ground, water is accumulated inside the outer case 10. Is prevented.

The noise prevention structure of the washing machine according to the present invention configured as described above has an effect of preventing leakage noise leaking to the outside of the outer case by bending the structure of the silent base installed on the bottom of the outer case of the washing machine. .

In addition, the present invention has an additional effect that by forming a plurality of water holes in the bottom portion of the silent base to prevent the leakage noise of the washing machine by changing the structure of the silent base, and also water pooling phenomenon on the bottom of the outer case.

Claims (2)

Silent base which is installed inside the outer case and has a tub installed in the lower part, and a hole formed in the bottom surface of the outer case and the hole enough to pass the motor in the center portion And a leg part installed to support the washing machine load while spaced apart from the case and the ground from all sides of the silent base, and a noise prevention part formed to be bent up and down around the hole of the silent base to block leakage noise. Noise prevention structure of the washing machine comprising a. The method of claim 1, The silent base is provided with a gradient facing the ground, the noise preventing structure of the washing machine, characterized in that a plurality of water holes are formed to prevent the water flowing down during washing.