KR20120079793A - Drain hose and washer having the same - Google Patents

Abstract

PURPOSE: A drain hose without the vibration noise, and a washing machine including thereof are provided to absorb the vibration of a drain pump with a simple structure. CONSTITUTION: A washing machine comprises the following: a drain pump(100) combined to a lower frame and a front frame of the machine for draining washing water inside a tub; a drain hose(150) guiding the pumped washing water into a cabinet; a dust-proof member with a wrinkle unit, combined to the drain pump and the drain hose; and the wrinkle unit preventing the vibration of the drain pump to the drain hose when draining the washing water.

Description

DRAIN HOSE AND WASHER HAVING THE SAME}

The present invention relates to a drain hose for reducing vibration noise by a drain pump and a washing apparatus having the same.

In general, a washing apparatus including a washing machine or a dishwasher performs a washing process such as laundry or dishware using water supplied from the outside.

The water used in the course of the washing process is pumped by the drain pump and forcedly drained to the outside of the washing apparatus through the drain hose connected to the drain pump.

The drain hose is fixed to the frame of the washing device by a holder, guide, etc., and the self-vibration generated during the operation of the drain pump is transmitted along the drain hose connected to the drain pump to generate vibration noise of the frame where the drain hose is fixed. To this end, there is a need for a structure that prevents self-vibration generated during the operation of the drainage pump from being transferred to the drainage hose.

One aspect of the present invention discloses a drainage hose capable of absorbing the vibration of the drainage pump with a simple structure and a cleaning device having the same.

According to an aspect of the present invention, a washing machine includes: a cabinet including a front frame, a rear frame, a side frame, and a bottom frame; and a tub disposed inside the cabinet to accommodate wash water therein; and washing inside the tub. A drain pump coupled to the bottom frame and the front frame to drain water; and a drain hose guiding the wash water pumped by the drain pump to the outside of the cabinet; and between the drain pump and the drain hose. It characterized in that it comprises a; dust-proof member having a pleat for preventing the vibration of the drain pump is transmitted to the drain hose when coupled to the wash water is drained.

The dustproof member may include a first connection part coupled to the drain pump and a second connection part coupled to the drain hose, and the corrugation part may be provided between the first connection part and the second connection part.

The dustproof member and the drain hose may be made of different materials.

The drain pump includes a washing water inlet through which washing water flows into the tub, and a washing water outlet through which the washing water introduced into the drain pump is discharged. The first connection part extends from one end of the pleated part to allow the washing water outlet. It can be connected with.

The drain hose has a hose wrinkle portion formed to bend the drain hose flexibly, and an extension portion extending from one end of the hose wrinkle portion, the second connecting portion is extended from the other end of the corrugated portion and the extension portion and Can be connected.

The second connection part and the extension part may be heat-sealed with each other.

The dustproof member may further include a sleeve coupled to the second connection portion.

The sleeve is provided at the end of the insertion portion to limit the depth of the insertion portion is inserted into the second connection portion to the inside of the second connection portion to reinforce the strength of the second connection portion. It may include a locking portion.

The second connection part may be inserted into one end of the drain hose.

The dustproof member may be composed of an injection molding made of plastic or rubber.

The dustproof member may be integrally formed with the drain hose.

The first connection part may have a size corresponding to the diameter of the washing water inlet, and the second connection part may have a size corresponding to the diameter of the extension part so that the dustproof member is shared.

Residual hose for guiding the wash water remaining in the drain pump to the outside of the cabinet; further comprising, the vibration of the drain pump is coupled to the residual hose when the wash water is drained between the drain pump and the residual hose It may include a dustproof member having a wrinkle portion for preventing the transmission.

In addition, the washing machine according to the spirit of the present invention; a cabinet including a front frame and a rear frame; and a tub disposed inside the cabinet to accommodate the wash water therein; and to drain the wash water inside the tub A drain pump disposed under the tub; and a drain hose for guiding the wash water pumped by the drain pump to the outside of the cabinet; and a drain hose formed of a material different from the drain hose, and the drain pump and the drain hose. It characterized in that it comprises a; dust-proof member having a pleated portion coupled between the wash water to absorb the vibration of the drain pump when the wash water is drained.

The drain pump may be disposed closer to the front frame than the rear frame.

The dustproof member may include a first connection part connected to the drain pump and a second connection part connected to the drain hose.

The dustproof member further includes a strength reinforcing member coupled to the second connecting portion, wherein the strength reinforcing member includes an insertion portion inserted into the second connecting portion to reinforce the strength of the second connecting portion, and the sleeve May include a locking portion provided at an end portion of the insertion portion so as to be caught at one end of the second connection portion.

The dustproof member may be composed of an injection molding made of plastic or rubber.

The cabinet includes a side frame and a bottom frame connecting the front frame and the rear frame, are coupled to at least one of the inner surface of the frame and the drain hose is in direct contact with the frames by vibration of the drain pump It may include a dust pad to prevent.

In addition, the dishwasher according to the spirit of the present invention; and a washing tank disposed inside the case to accommodate the dishes; and a sump provided in the lower portion of the washing tank; and to drain the washing water in the sump A drainage pump provided at one side of the sump; and a drainage hose guiding the washing water pumped by the drainage pump to the outside of the case; and the drainage water when the wash water is drained by being coupled between the drainage pump and the drainage hose. And an anti-vibration member having a pleat for preventing vibration of the pump from being transmitted to the drain hose.

The dustproof member may include a first connection part coupled to the drain pump and a second connection part coupled to the drain hose, and the corrugation part may be provided between the first connection part and the second connection part.

The dustproof member and the drain hose may be made of different materials.

The drain pump includes a wash water inlet through which the wash water flows into the sump, and a wash water outlet through which the wash water introduced into the drain pump is discharged. The first connection part extends from one end of the pleated part to be connected to the wash water outlet. have.

The drain hose has a hose wrinkle portion formed to bend the drain hose flexibly, and an extension portion extending from one end of the hose wrinkle portion, the second connecting portion is extended from the other end of the corrugated portion and the extension portion and Can be connected.

The second connection part and the extension part may be heat-sealed with each other.

The dustproof member may further include a sleeve coupled to the second connection portion.

The sleeve is provided at the end of the insertion portion to limit the depth of the insertion portion is inserted into the second connection portion to the inside of the second connection portion to reinforce the strength of the second connection portion. It may include a locking portion.

The second connection part may be inserted into one end of the drain hose.

The dustproof member may be composed of an injection molding made of plastic or rubber.

The dustproof member may be integrally formed with the drain hose.

The first connection part may have a size corresponding to the diameter of the washing water inlet, and the second connection part may have a size corresponding to the diameter of the extension part so that the dustproof member can be shared.

In addition, the drain hose according to the spirit of the present invention is a drain hose coupled to the drain pump for forcibly draining the wash water accommodated in the tub of the washing machine to the outside of the washing machine, the drain hose is stretched in the longitudinal direction of the drain hose And a hose wrinkle portion; and an extension portion extending from one end of the hose wrinkle portion, and formed of a material different from the extension portion and the hose wrinkle portion, and having a corrugation portion for absorbing vibration of the drain pump. Member; characterized in that it comprises a.

The dustproof member and the extension part may be coupled in a heat fusion method.

The dustproof member further includes a strength reinforcing member for reinforcing the strength of the dustproof part so that the dustproof member and the extension part are thermally fused to each other, wherein the strength reinforcing member is inserted into one end of the dustproof member; And, the strength reinforcing member may include a locking portion having a shape that is bent outward from the end of the insertion portion so as to be caught on one end of the dustproof member.

In addition, the washing apparatus according to the spirit of the present invention; a main body; and a drain pump disposed under the main body; and a drain hose for guiding the water pumped by the drain pump to the outside of the main body; and the drain hose And a dustproof member which is formed of a different material and is coupled between the drainage pump and the drainage hose and has a pleat portion for absorbing vibration of the drainage pump when water is drained.

The dustproof member may include a first connection part connected to the drain pump and a second connection part connected to the drain hose.

According to the present invention, since vibration of the drain pump is effectively absorbed by the drain hose, vibration noise is not generated.

In addition, since the vibration of the drain pump is absorbed by the drain hose itself, a separate structure for vibration absorption is unnecessary, thereby reducing the production cost.

1 is a view showing the configuration of a washing machine according to an embodiment of the present invention.
Figure 2 is a perspective view of the drain pump and the drain hose of the washing machine according to an embodiment of the present invention.
3 is an exploded perspective view showing the drain pump and the drain hose and the dustproof member in FIG.
Figure 4 is an exploded perspective view showing a coupling relationship between the drain pump and the front frame and the lower frame in FIG.
FIG. 5 is a side view of a portion of FIG. 4;
Figure 6 is a side view of the drain hose and the dustproof member in FIG.
7A and 7B are graphs comparing the washing machine noise when the dustproof member is not used and when it is used.
8 is a view showing the configuration of a dish washer according to an embodiment of the present invention.
Figure 9 is a bottom perspective view showing a drain pump and a drain hose of the dishwasher according to an embodiment of the present invention.
FIG. 10 is an exploded perspective view of the drain pump, the drain hose, and the dustproof member of FIG. 9;
Figure 11 is a side view of the drain hose and the dustproof member in FIG.
12A and 12B are graphs comparing the washing machine noise when the dustproof member is not used and when it is used.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, a washing machine, which is one of representative washing apparatuses, will be described. Next, a dish washing machine will be described.

1 is a view showing the configuration of a washing machine according to an embodiment of the present invention.

As shown in FIG. 1, the washing machine 1 includes a cabinet 10 forming an exterior, a tub 20 disposed inside the cabinet 10, and a rotation rotatably disposed inside the tub 20. The tank 30 and the motor 40 which drives the rotating tank 30 are provided.

The cabinet 10 includes frames 10a, 10b, 10c, and 10d, and the frames 10a, 10b, 10c, and 10d each comprise the front and rear frames 10a and rear that form the front and rear of the cabinet 10, respectively. The frame 10b, the front frame 10a and the rear frame 10b are connected to each other, and constitute a side frame 10c and a bottom frame 10d that form the side and bottom surfaces of the cabinet 10.

An inlet 11 is formed in the front portion of the cabinet 10 to inject laundry into the rotating tub 30. The inlet 11 is opened and closed by a door 12 provided in the front part of the cabinet 10.

The upper portion of the tub 20 is provided with a water supply pipe 50 for supplying the wash water to the tub (20). One side of the water supply pipe 50 is connected to an external water supply source (not shown), and the other side of the water supply pipe 50 is connected to the detergent supply device 52.

Detergent supply device 52 is connected to the tub 20 through a connecting pipe (54). Water supplied through the water supply pipe 50 is supplied into the tub 20 together with the detergent via the detergent supply device 52.

Tub 20 is supported by damper 80. The damper 80 connects the inner bottom of the cabinet 10 and the outer surface of the tub 20.

The rotating tub 30 is comprised including the cylindrical part 31, the front plate 32 arrange | positioned in front of the cylindrical part 31, and the back plate 33 arrange | positioned at the rear of the cylindrical part 31. . An opening 32a for entering and exiting laundry is formed in the front plate 32, and a drive shaft 42 for transmitting power of the motor 40 is connected to the rear plate 33.

A plurality of through holes 34 for the distribution of the wash water is formed around the rotating tub 30, and the inner circumferential surface of the rotating tub 30 allows the laundry to rise and fall when the rotating tub 30 rotates. A plurality of lifters 35 are provided.

The drive shaft 42 is disposed between the rotating tub 30 and the motor 40. One end of the drive shaft 42 is connected to the rear plate 33 of the rotating tub 30, and the other end of the drive shaft 42 extends to the outside of the rear wall of the tub 20. When the motor 40 drives the drive shaft 42, the rotary tub 30 connected to the drive shaft 42 rotates about the drive shaft 42.

A bearing housing 70 is installed on the rear wall of the tub 20 to rotatably support the drive shaft 42. The bearing housing 70 may be made of an aluminum alloy, and may be inserted into the rear wall of the tub 20 when the tub 20 is injection molded. Bearings 72 are installed between the bearing housing 70 and the drive shaft 42 so that the drive shaft 42 can rotate smoothly.

2 is a perspective view illustrating a drain pump and a drain hose of a washing machine according to an embodiment of the present invention, FIG. 3 is an exploded perspective view illustrating the drain pump, the drain hose and the dustproof member separated from FIG. 2, and FIG. Figure 2 is an exploded perspective view showing a coupling relationship between the drainage pump and the front frame and the lower frame, Figure 5 is a side view showing a part of Figure 4, Figure 6 is a side drain hose and the dustproof member in Figure 3 This is a side view.

2 to 6, the lower portion of the tub 20, the drain pump 100 to discharge the water in the tub 20 to the outside of the cabinet 10, and the water in the tub 20. A connection hose 62 connecting the tub 20 and the drain pump 100 and the water pumped by the drain pump 100 to guide the tub 20 and the drain pump 100 to the outside of the cabinet 10 to be introduced into the drain pump 100. Drain hose 150 is provided. In addition, a dustproof member 180 is provided between the drain pump 100 and the drain hose 150 to prevent vibration of the drain pump 100 from being transmitted to the drain hose 150.

The drain pump 100 is coupled to one end of the pump housing 102 to accommodate the wash water and the pump housing 102, and a drain motor for providing power to forcibly drain the wash water introduced into the pump housing 102 ( 110, and a bubble generating motor 120 for generating bubbles in the wash water in the process of circulating the wash water accommodated in the pump housing 102 into the tub 20.

The pump housing 102 includes a washing water inlet 104 through which washing water flows into the tub 20, a washing water outlet 106 through which washing water introduced into the pump housing 102 is discharged, and a pump housing 102. Air outlet 108 for discharging air in the), the washing water circulation port 112 for guiding the wash water introduced into the pump housing 102 to be circulated back to the tub 20, and the pump housing 102 Residual water outlet 114 for discharging the residual water remaining in the. Residual water discharge port 114 is coupled to the residual hose 115 is guided so that the residual water passing through the residual water discharge port 114 to the outside of the washing machine (1).

The washing water inlet 104 is connected to the tub 20 through the connection hose 62 so that the washing water inside the tub 20 can be introduced into the pump housing 102. The washing water outlet 106 allows the washing water in the pump housing 102 to be drained to the outside of the cabinet 10 through the drain hose 150. The air outlet 108 allows the air mixed with the wash water to be discharged to the outside of the pump housing 102 while the drain pump 100 pumps the wash water. Residual water discharge port 114 is formed to extend downward from one side of the pump housing 102 so that the washing water remaining in the pump housing 102 can be naturally drained after the drainage of the wash water is completed through the drain pump 100 .

The drain pump 100 is disposed so that the filter 116 may be exposed to the front of the washing machine 1. The front frame 10a forming the front side of the washing machine 1 is provided with a pump coupling frame 119 for coupling the drain pump 100. The pump coupling frame 119 is formed in a square shape having a predetermined width, and a through hole 119a is formed on the front surface thereof so that the filter 116 of the drain pump 100 can be exposed. The residual hose 115 protrudes to the front of the pump coupling frame 119 through the through hole 119a.

In addition, the user can easily replace by holding the filter 116 exposed through the through hole (119a).

The pump housing 102 is coupled to the bottom frame 10d via the mount member 117. The upper surface of the mounting member 117 is formed with a coupling hole 117a for receiving the coupling protrusion 103 formed in the lower portion of the pump housing 102. The pump housing 102 and the mounting member 117 are fitted to each other through the coupling protrusion 103 and the coupling hole 117a. In addition, the mounting member 117 is coupled to the lower surface frame 10d through the coupling groove 117b formed in the lower surface frame 10d.

Mounting member 117 is made of a material such as rubber or plastic, and is located between the pump housing 102 and the lower frame (10d) to absorb the vibration of the pump housing 102 by vibration of the pump housing 102 The lower surface is prevented from being transmitted to the frame 10d.

The dustproof member 180 is coupled to the washing water outlet 106 of the pump housing 102.

The dustproof member 180 is coupled to the wash water outlet 106 of the pump housing 102 so that the vibration generated from the drainage pump 100 when the drainage pump 100 is operated is the drainage hose 150 or the front frame 10a. Corrugation part 182 that absorbs the vibration of the drain pump 100 and the first connection part 188 extending from one end of the pleat part 182 to be combined with the washing water outlet 106 in a configuration that is not transmitted to And a second connecting portion 189 extending from the other end of the pleating portion 182 and coupled to one end of the drain hose 150.

The wrinkles 182 has an outer structure in which the mountain 184 and the bone 186 are alternately disposed, and the inside thereof is hollowed so that the wash water can move. The ridge 184 and the bone 186 allow the external shape of the wrinkle 182 to be easily deformed when external energy such as vibration is transmitted to the wrinkle 182 so that external energy passes through the wrinkle 182. Effective absorption at In order to effectively absorb external energy, the distance P1 between the peaks 184 is preferably 10 mm or more, and the width difference d1 in the circumferential direction between the peaks 184 and the valleys 186 is 5 mm or more. It is desirable to.

The pleats 182 may operate the pump housing 102 and the drain motor 110 while the drain motor 110 operates to drain the wash water or the bubble generating motor 120 operates to generate bubbles in the wash water. And absorbs vibration generated by the influence of the moment of inertia according to the center of gravity of the drain pump 100 including the bubble generating motor 120. In detail, when the vibration energy generated in the drainage pump 100 is transferred to the wrinkle part 182, the vibration energy is heat energy generated by friction between the mountain mold 184 and the bone mold 186 while the appearance of the wrinkle part 182 is changed. Or it is converted into sound energy and absorbed.

The first connector 188 extends a predetermined length from one end of the pleats 182 and is connected to the washing water outlet 106. The first connecting portion 188 is provided such that its inner circumferential surface is in contact with the outer circumferential surface of the wash water discharge port 106. The first connector 188 and the washing water outlet 106 are fixed to each other so as not to be separated from each other, and the first connector 188 and the washing water to prevent leakage between the first connector 188 and the washing water outlet 106. The clamp 195 may be coupled to the outer circumferential surface of the first connector 188 while the outlets 106 are connected to each other.

The second connector 189 extends a predetermined length from the other end of the wrinkle part 182 and is connected to the drain hose 150. The second connecting portion 189 is provided such that its outer circumferential surface can be inserted into one inner circumferential surface of the drain hose 150, and one end of the drain hose 150 in a state where the outer circumferential surface is inserted into one inner circumferential surface of the drain hose 150. May be thermally fused. One end of the second connecting portion 189 and the drain hose 150 is heat-sealed with each other, so that the dustproof member 180 and the drain hose 150 are integrated, and the dustproof member 180 and the drain hose 150 are integrally drained. May be coupled to the pump 100.

The size (diameter) of the first connection part 188 or the second connection part 189 constituting the dustproof member 180 may be the washing water discharge port 106 and the drain hose of the drain pump 100 used in the washing machine 1 ( By adjusting to the standard of 150, it is possible to share the dustproof member 180.

A sleeve 194 may be further coupled to the inner circumferential surface of the second connector 189. The sleeve 194 may include an insert 196 inserted into the second connector 189 to reinforce the strength of the second connector 189, and the sleeve 194 may include the second connector 189. And a catching portion 198 formed at an end of the inserting portion 196 to limit the depth of insertion into the inside of the 189.

As described above, the anti-vibration member 180 has a wrinkle part 182 to effectively insulate the vibration of the drain pump 100, and the wrinkle part 182 easily deforms the vibration of the drain pump 100. If the thickness of the wrinkles 182 is absorbed, the stiffness is increased so that the shape of the wrinkles 182 is not easily deformed, so that the vibration of the drain pump 100 may not be fully absorbed. In order to have an effective vibration absorption performance, the thickness of the wrinkle part 182 is preferably about 2 mm or less. Since the wrinkle part 182 and the second connection part 189 are integrally formed, the thickness of the second connection part 189 is also about 2 mm or less. Is formed.

When the thickness of the second connector 189 is less than or equal to 2 mm, the cross section of the second connector 189 may be bent without forming a perfect circle. When the cross section of the second connector 189 is bent, the drain hose 150 may be curved. In the process of thermally fusion with one end of), the outer circumferential surface of the second connector 189 and the inner circumferential surface of one end of the drain hose 150 may not be completely contacted, thereby lowering the bonding strength and leaking. The inserting portion 196 is inserted into the second connecting portion 189 to reinforce the strength of the second connecting portion 189, and to allow the cross section of the second connecting portion 189 to form a complete circle, thereby forming the second connecting portion 189. ) Is to be heat-sealed in a state that is completely in contact with one end of the drain hose (150).

The locking portion 198 has a shape that is bent outward from the end of the insertion portion 196, so that the sleeve (194) can be caught on one end of the second connection portion (189).

As described above, the sleeve 194 is coupled to the inner side of the second connector 189 and serves to reinforce the strength of the second connector 189, and thus may be viewed as a strength reinforcing member.

The dustproof member 180 is a plastic material having high vibration insulation properties such as thermoplastic elastomer (TPE), thermoplastic olefinic elastomer (TPO), thermoplastic polyurethane (TPU), thermoplastic polyamide (TPA), thermoplastic polyester elastomer (TPEE), and EPDM. It may be composed of an injection molding material made of rubber such as (Ethylene propylene diene M-class). The dustproof member 180 made of such a plastic or rubber material effectively absorbs vibration energy generated from the drainage pump 100 through a flexible shape deformation.

The drain hose 150 is coupled to the second connector 189. The drain hose 150 includes a hose wrinkle part 153 provided to be stretchable in the longitudinal direction of the drain hose 150, and an extension part 151 extending from one end of the hose wrinkle part 153. The hose fold 153 allows the drain hose 150 to bend flexibly so that the drain hose 150 is not easily damaged even when external vibration or shock is applied in the process of washing water flowing into the drain hose 150. Also, the drain hose 150 may be easily mounted on the inside of the cabinet 10. The extension part 151 may be coupled to the second connection part 189 of the dustproof member 180, and the second connection part 189 and the extension part 151 may be thermally fused to each other. As a material of the drain hose 150, P.P (Polypropylene) or the like having a relatively higher rigidity than that of the dustproof member 180 may be used.

The anti-vibration member 180 is provided between the pump housing 102 and the drain hose 150 to absorb the vibration of the pump 100, so that the vibration of the pump 100 is transmitted to the drain hose 150 to discharge the drain hose 150. Reduces vibration noise that may occur when the frames 10b, 10c, and 10d come into contact with the frames 10b, 10c, and 10d, and the vibration of the pump 100 disposed below the front surface of the cabinet 10, as shown in FIG. It also has the effect of reducing the vibration noise that can be transmitted directly to 10a).

The drain hose 150 is coupled to the inside of the cabinet 10 by a hose wire 172, a hose holder 174, or the like so as not to interfere with other components inside the cabinet 10, and by the hose guide 176. Guided out of (10).

The dustproof pad 210 may be further provided on at least one inner surface of the front frame 10a, the rear frame 10b, the side frame 10c, and the bottom frame 10d constituting the cabinet 10. The anti-vibration pad 210 prevents the drain hose 150 from directly contacting the frames 10a, 10b, 10c, and 10d by the vibration of the drain pump 100. 10b, 10c, and 10d) to reduce the vibration noise that may occur.

The dustproof member 180a may be coupled between the residual water discharge port 114 and the residual hose 115 of the pump housing 102.

The dustproof member 180a is coupled to the residual water outlet 114 of the pump housing 102 to prevent the vibration generated from the drainage pump 100 from being transmitted to the residual hose 115 when the drainage pump 100 is operated. Of the pleated portion 182a, which absorbs the vibration of the drain pump 100, the first connection portion 188a extending from one end of the pleated portion 182a and coupled to the residual water outlet 114, and the pleated portion 182a. It includes a second connecting portion 189a extending from the other end and coupled to one end 118 of the residual hose 115.

The dustproof member 180a prevents the vibration of the drainage pump 100 from being transmitted to the front frame 10a of the washing machine 1. As described above, the residual hose 115 is directed to the front of the pump coupling frame 119 through the through hole 119a of the pump coupling frame 119 coupled to the front frame 10a when the drain pump 100 operates. When the dustproof member 180a is not used, the vibration generated when the drain pump 100 operates is transferred to the residual hose 115 so that the residual hose 115 flows by itself. As the hose 115 flows, contact noise is generated by irregular contact with the through hole 119a, or the flow of the residual hose 115 flows through the through hole 119a, the pump coupling frame 119, and the front frame 10a. As it transitions, vibration noise is generated. By using the anti-vibration member 180a, the vibration of the drain pump 100 may be absorbed to prevent the vibration of the drain pump 100 from being transmitted to the residual hose 115.

Meanwhile, the principle of absorbing the vibration of the drainage pump 100 by the pleats 182a of the dustproof member 180a is the same as that of the pleats 182 of the dustproof member 180 coupled to the drain hose 150 as described above. Description is omitted.

7A and 7B are graphs comparing the washing machine noises when the dustproof member is not used and when the dustproof member is not used. Particularly, the washing water in the tub 20 is completely drained when the washing water level in the tub 20 is less than half. That is, until the self-vibration of the drain pump 100 is generally compared with the drainage noise of the washing machine of the largest section. The horizontal axis of the graph represents the frequency (Hz) of noise according to the vibration of the drain pump 100, and the vertical axis represents the noise (dB) of the frequency (Hz).

As shown in FIGS. 7A and 7B, when the drain pump 100 is operated while the drain pump 100 and the drain hose 150 are connected with the dustproof member 180, the dustproof member 180 is operated. It can be seen that the noise is reduced as a whole than when the drain pump 100 is operated in a state in which the drain hose 150 is directly coupled to the drain pump 100 without using it. Particularly, when the frequency is 180 Hz, the vibration of the drain pump 100 is transmitted to the drain hose 150 and is included in the frequency of the noise generated when the drain hose 150 and the cabinet 10 collide with each other. In the case of using 180), when the frequency is 180 Hz, the noise is greatly reduced by 20 dB or more. It can be seen that the vibration of the drain pump 100 is not absorbed by the dustproof member 180 and is not transmitted to the drain hose 150. have.

Although not shown, the anti-vibration member 180 may be coupled to a drain pump 100 used for a fully automatic washing machine having a pulsator as well as a drum washing machine, and may be used as a configuration for absorbing vibration.

Hereinafter will be described a dishwasher according to an embodiment of the present invention.

8 is a view showing the configuration of a dish washer according to an embodiment of the present invention.

As shown in FIG. 8, the dishwasher 201 includes a case 210, a washing tank 220 provided inside the case 210 to form a washing space, and a washing water provided below the washing tank 220 to store the washing water. The sump 230 and the door 240 for opening and closing the front of the washing tank 220 may be configured.

The washing tub 220 includes at least one dish basket 221 for storing dishes, at least one rack 222 for slidably supporting the at least one dish basket 221, and at least one spraying washing water. Injection nozzle 223 may be provided. Here, the at least one injection nozzle 223 may include a top nozzle 223a, an upper nozzle 223b, and a lower nozzle 223c.

The washing tank 220 may be provided with a water supply unit 224 for supplying the washing water. The water supply part 224 may be provided on the side wall of the washing tank 220. The washing water may be supplied into the washing tank 220 through the water supply 224.

The washing tank 220 may be provided with a heater 225 and a heater installation groove 226 for heating the washing water. The heater installation groove 226 may be provided at the bottom of the washing tank 220, and the heater 225 may be installed in the heater installation groove 226.

The sump 230 may be provided at the bottom center of the washing tank 220 to collect and wash the washing water.

The sump 230 may include a washing pump 231 for pumping the washing water at a high pressure, and a pump motor 232 for driving the washing pump 231. The washing pump 231 may pump the washing water into the top nozzle 223a and the upper nozzle 223b through the first supply pipe 233a, and pump the washing water into the lower nozzle 223c through the second supply pipe 233b. have.

The sump 230 may include a turbidity sensor 234 for detecting a degree of contamination of the washing water. The controller (not shown) of the dishwasher 201 may detect the contamination level of the washing water using the turbidity sensor 234 and control the number of times of the washing step or the rinsing step. That is, when the contamination is high, the washing or rinsing step may be increased, and when the contamination is low, the washing or rinsing step may be reduced.

In addition, one side of the sump 230 may be provided with a drain pump 260 for discharging the contaminated washing water to the outside of the dishwasher 201.

The door 240 may be rotatably coupled to the case 210 to open and close the front of the washing tub 220. A circulation duct (not shown) and various electrical components may be installed in the interior space of the door 240.

FIG. 9 is a bottom perspective view illustrating a drain pump and a drain hose of the dish washing machine according to an embodiment of the present invention, and FIG. 10 is an exploded perspective view illustrating the drain pump, the drain hose and the dustproof member separated from FIG. 9. 11 is a side view of the drain hose and the dustproof member in FIG. 10.

9 to 11, as shown in FIGS. 9 to 11, the lower portion of the washing tank 220, the drain pump for discharging the water in the washing tank 220 to the outside of the dishwasher 201. 260 and a drain hose 250 for guiding the water pumped by the drain pump 260 to the outside of the dishwasher 201 are provided. In addition, an anti-vibration member 280 is provided between the drain pump 260 and the drain hose 250 to prevent vibration of the drain pump 260 from being transmitted to the drain hose 250.

The drain pump 260 includes a pump housing 262 for receiving the washing water and a drain motor 268 for providing power for forcibly draining the washing water introduced into the pump housing 262, and the pump housing 262. The sump 230 includes a washing water inlet 264 through which washing water flows into the sump 230, and a washing water outlet 266 through which washing water introduced into the pump housing 262 is discharged.

The washing water outlet 266 allows the washing water in the pump housing 262 to be drained to the outside of the dishwasher 201 through the drain hose 250.

In addition, the drain pump 260 may be integrally formed with the sump 230. That is, the drain pump 260 may be injection molded integrally with the sump 230 while the sump 230 is injection molded.

The dustproof member 280 is coupled to the washing water outlet 266 of the pump housing 262.

The dustproof member 280 is coupled to the washing water outlet 266 of the pump housing 262 to prevent the vibration generated from the drainage pump 260 from being transmitted to the drainage hose 250 when the drainage pump 260 is operated. Pleating portion 282 that absorbs the vibration of the drain pump 260, a first connection portion 288 extending from one end of the pleating portion 282 and coupled to the washing water outlet 266, and the pleating portion 282 The second connector 289 extends from the other end and is coupled to one end of the drain hose 250.

The pleats 282 has an outer structure in which the peaks 284 and the valleys 286 are alternately disposed, and the inside thereof is hollow so that the wash water can move. The ridge 284 and the valley 286 allow the external shape of the wrinkle 282 to be easily deformed when external energy such as vibration is transmitted to the wrinkle 282 so that external energy passes through the wrinkle 282. Effective absorption at In order to effectively absorb external energy, the distance P2 between the peaks 284 is preferably 10 mm or more, and the width difference d2 in the circumferential direction between the peaks 284 and the valleys 286 is 5 mm or more. It is desirable to.

The wrinkles 282 absorbs vibrations generated during the operation of the drain pump 260 to drain the washing water. In detail, when the vibration energy generated by the drainage pump 260 is transmitted to the wrinkle part 282, the vibration energy is heat energy generated by friction between the mountain mold 284 and the bone mold 286 while the appearance of the wrinkle part 282 is changed. Or it is converted into sound energy and absorbed.

The first connector 288 extends a predetermined length from one end of the pleats 282 and is connected to the washing water outlet 266. The first connecting portion 288 is provided such that the inner circumferential surface thereof may contact the outer circumferential surface of the washing water outlet 266. The first connector 288 and the washing water outlet 266 are fixed so as not to be separated from each other, and the second connector 188 and the washing water outlet 266 are prevented from leaking between the first connector 288 and the washing water outlet 266. The clamp 295 may be coupled to the outer circumferential surface of the first connector 288 in a state in which the) is connected to each other.

The second connection part 289 extends a predetermined length from the other end of the wrinkle part 282 and is connected to the drain hose 250. The second connecting portion 289 is provided such that its outer circumferential surface can be inserted into one inner circumferential surface of the drain hose 250, and one end of the drain hose 250 in a state where the outer circumferential surface is inserted into one inner circumferential surface of the drain hose 250. May be thermally fused. One end of the second connecting portion 289 and the drain hose 250 is heat-sealed with each other, the dustproof member 280 and the drain hose 250 is integrated, the dustproof member 280 and the drain hose 250 is integrally drained May be coupled to the pump 260.

The size (diameter) of the first connection portion 288 or the second connection portion 289 constituting the dustproof member 280 may be determined by the washing water discharge port 266 and the drain hose of the drain pump 260 used in the dishwasher 201. By adjusting to the standard of 250, it is possible to share the dustproof member 280.

A sleeve 294 may be further coupled to the inner circumferential surface of the second connector 289. The sleeve 294 has an insert portion 296 inserted into the second connector portion 289 to reinforce the strength of the second connector portion 289, and the sleeve 294 has a second connector portion (294). And a catching portion 298 formed at an end of the inserting portion 296 to limit the depth of insertion into the inside of the 289.

As described above, the anti-vibration member 280 has a pleat portion 282 to effectively insulate the vibration of the drain pump 260, and the pleat portion 282 easily deforms the vibration of the drain pump 260. If the thickness of the wrinkles 282 becomes thick, the rigidity is increased so that the shape of the wrinkles 282 is not easily deformed, so that the vibration of the drain pump 100 may not be fully absorbed. It is preferable that the thickness of the wrinkle part 282 to have an effective vibration absorption performance is about 2 mm or less. Since the wrinkle part 282 and the second connection part 289 are integrally formed, the thickness of the second connection part 289 is also about 2 mm or less. Is formed.

When the thickness of the second connection portion 289 is formed to be 2 mm or less, the cross section of the second connection portion 289 may be bent without forming a perfect circle, and when the cross section of the second connection portion 289 is bent, the drain hose 250 The outer peripheral surface of the second connecting portion 289 and the inner peripheral surface of the one end of the drain hose 250 may not be completely contacted in the process of thermally fusion with one end of the) and thus the bonding strength may be lowered and leakage may occur. The inserting portion 296 is inserted into the second connecting portion 289 to reinforce the strength of the second connecting portion 289 and the second connecting portion 289 so that the cross section of the second connecting portion 289 may be completely circular. ) Is to be heat-sealed in a state that is completely in contact with one end of the drain hose (250).

The locking portion 298 has a shape that is bent outwardly from the end of the insertion portion 296, so that the sleeve (294) can be caught in one end of the second connecting portion (289).

As described above, the sleeve 294 is coupled to the inner side of the second connecting portion 289 and serves to reinforce the strength of the second connecting portion 289, and thus may be viewed as a strength reinforcing member.

The dustproof member 280 is a plastic material having high vibration insulating properties such as thermoplastic elastomer (TPE), thermoplastic olefinic elastomer (TPO), thermoplastic polyurethane (TPU), thermoplastic polyamide (TPA), thermoplastic polyester elastomer (TPEE), and EPDM. It may be composed of an injection molding material made of rubber such as (Ethylene propylene diene M-class). The dustproof member 280 made of such a plastic or rubber material effectively absorbs vibration energy generated from the drainage pump 250 through a flexible shape deformation.

The drain hose 250 is coupled to the second connector 289. The drain hose 250 includes a hose wrinkle part 253 provided to be stretchable in the longitudinal direction of the drain hose 250, and an extension part 251 extending from one end of the hose wrinkle part 253. The hose pleats 253 allow the drain hose 250 to bend flexibly so that the drain hose 250 is not easily damaged even when external vibration or shock is applied in the process of washing water flowing into the drain hose 250. Do not. The extension part 251 may be coupled to the second connection part 289 of the dustproof member 280, and the second connection part 289 and the extension part 251 may be heat-sealed with each other. As the material of the drain hose 250, P.P (polypropylene) or the like having a relatively higher rigidity than that of the dustproof member 280 may be used.

The dustproof member 280 is provided between the pump housing 262 and the drain hose 250 to absorb the vibration of the pump 260, so that the vibration of the pump 260 is transmitted to the drain hose 250, the drain hose 250 Reduces vibration noise that may occur while interfering with the case 210.

12A and 12B are graphs comparing the dishwasher noises when the dustproof member is not used and when the dustproof member is not used. In particular, the washing water in the sump 230 is completely drained when the level of the washing water in the sump 230 is less than half. That is, until the self-vibration of the drain pump 260 is generally compared with the drainage noise of the dishwasher of the largest section. The horizontal axis of the graph represents the frequency (Hz) of noise according to the vibration of the drain pump 260, and the vertical axis represents the noise (dB) of the frequency (Hz).

12A and 12B, when the drain pump 260 is operated while the drain pump 260 and the drain hose 250 are connected with the dustproof member 280, the dustproof member 280 is It can be seen that the noise is reduced as a whole than when the drain pump 260 is operated in a state in which the drain hose 250 is directly coupled to the drain pump 260 without using it. In particular, when the frequency is 180Hz and 240Hz noise is included in the frequency of the noise generated when the vibration of the drain pump 260 is transmitted to the drain hose 250, the drain hose 250 and the case 210 collide. In the case of using the dustproof member 280, when the frequency is 180 Hz and the noise of 240 Hz decreases by 10 dB or more, the vibration of the drain pump 250 is absorbed by the dustproof member 280, and the drain hose 250. It can be seen that it is not delivered to.

In the above description, the dustproof members 180 and 280 are coupled to the drain hoses 150 and 250 to absorb vibrations generated by the drainage pumps 100 and 260, but the present invention is not limited thereto. ) Is generally coupled to a device for generating vibrations and can be applied in various configurations to absorb vibrations.

1: washing machine 20: tub
30: rotating tank 100, 260: drain pump
150, 250: drain hose 180, 280: dustproof member
182, 282: pleats 188, 288: first connection
189, 289: second connection portion 194, 294: sleeve
201: dishwasher 210: case
220: washing tank 230: sump

Claims (36)

A cabinet including a front frame, a rear frame, a side frame and a bottom frame;
A tub disposed inside the cabinet to accommodate the wash water therein; and
A drain pump coupled to the bottom frame and the front frame to drain the wash water inside the tub;
A drain hose for guiding the wash water pumped by the drain pump to the outside of the cabinet;
A dustproof member coupled between the drain pump and the drain hose and having a pleat for preventing vibration of the drain pump from being transmitted to the drain hose when the wash water is drained;
Washing machine comprising a. The method of claim 1,
The dustproof member,
A first connection part coupled to the drain pump and a second connection part coupled to the drain hose,
The wrinkle part is a washing machine, characterized in that provided between the first connecting portion and the second connecting portion. The method of claim 2,
Washing machine, characterized in that the dustproof member and the drain hose is composed of different materials. The method of claim 3,
The drain pump includes a washing water inlet through which washing water flows into the tub, and a washing water outlet through which washing water introduced into the drain pump is discharged.
The first connection part is a washing machine, characterized in that extending from one end of the wrinkle portion is connected to the wash water outlet. The method of claim 4, wherein
The drain hose has a hose wrinkle portion formed so that the drain hose can bend flexibly, and an extension portion extending from one end of the hose wrinkle portion,
The second connector is extended from the other end of the pleated portion washing machine, characterized in that connected to the extension. The method of claim 5,
Washing machine, characterized in that the second connecting portion and the extension is heat-sealed with each other. The method of claim 6,
The dustproof member further comprises a sleeve coupled to the second connecting portion. The method of claim 7, wherein
The sleeve includes an insertion portion inserted into the second connecting portion to reinforce the strength of the second connecting portion,
Washing machine characterized in that it comprises a locking portion provided at the end of the insertion portion to limit the depth that the sleeve is inserted into the second connecting portion. The method of claim 8,
The second connecting part is a washing machine, characterized in that inserted into one end of the drain hose. 10. The method of claim 9,
The dustproof member is a washing machine, characterized in that consisting of injection molding of plastic or rubber. The method of claim 2,
The dustproof member is formed in one piece with the drain hose. The method of claim 5,
The first connecting portion has a size corresponding to the diameter of the wash water inlet, and the second connecting portion has a size corresponding to the diameter of the extension so that the dustproof member can be shared. The method of claim 1,
Residual hose for guiding the wash water remaining in the drain pump to the outside of the cabinet;
And an anti-vibration member having a corrugation portion coupled to the drain pump and the residual hose to prevent the vibration of the drain pump from being transmitted to the residual hose when the wash water is drained. A cabinet including a front frame and a rear frame;
A tub disposed inside the cabinet to accommodate the wash water therein;
A drain pump disposed under the tub to drain the wash water inside the tub;
A drain hose for guiding the wash water pumped by the drain pump to the outside of the cabinet; and
It is formed of a material different from the drain hose, the dustproof member is coupled between the drain pump and the drain hose having a corrugation portion for absorbing the vibration of the drain pump when the wash water is drained;
Washing machine comprising a. 15. The method of claim 14,
The drain pump is characterized in that the washing machine is disposed closer to the front frame than the rear frame. 16. The method of claim 15,
The dustproof member,
A first connection part connected to the drain pump;
Washing machine comprising a second connecting portion connected to the drain hose. The method of claim 16,
The dustproof member further includes a strength reinforcing member coupled to the second connecting portion,
The strength reinforcing member,
An insertion part inserted into the second connection part to reinforce the strength of the second connection part;
Washing machine characterized in that it comprises a locking portion provided at the end of the insertion portion so that the sleeve can be caught on one end of the second connecting portion. 18. The method of claim 17,
The dustproof member is a washing machine, characterized in that consisting of injection molding of plastic or rubber. 15. The method of claim 14,
The cabinet includes a side frame and a bottom frame connecting the front frame and the rear frame,
And a dustproof pad coupled to at least one inner surface of the frames to prevent the drain hose from directly contacting the frames by vibration of the drain pump. case;
A washing tank disposed inside the case to accommodate tableware; and
A sump provided at a lower portion of the washing tank; and
A drain pump provided at one side of the sump to drain the washing water in the sump; and
A drain hose for guiding the washing water pumped by the drain pump to the outside of the case;
A dustproof member coupled between the drain pump and the drain hose and having a pleat for preventing vibration of the drain pump from being transmitted to the drain hose when the wash water is drained;
Dishwasher comprising a. 21. The method of claim 20,
The dustproof member,
A first connection part coupled to the drain pump and a second connection part coupled to the drain hose,
The pleated portion dishwasher, characterized in that provided between the first connecting portion and the second connecting portion. The method of claim 21,
And the dustproof member and the drain hose are made of different materials. The method of claim 22,
The drain pump includes a wash water inlet through which the wash water flows into the sump, and a wash water outlet through which the wash water introduced into the drain pump is discharged.
And the first connection part extends from one end of the wrinkle part and is connected to the washing water outlet. 24. The method of claim 23,
The drain hose has a hose wrinkle portion formed so that the drain hose can bend flexibly, and an extension portion extending from one end of the hose wrinkle portion,
And the second connection part extends from the other end of the wrinkle part and is connected to the extension part. 25. The method of claim 24,
And the second connection part and the extension part are thermally fused to each other. 26. The method of claim 25,
The dustproof member further comprises a sleeve coupled to the second connecting portion. The method of claim 26,
The sleeve includes an insertion portion inserted into the second connecting portion to reinforce the strength of the second connecting portion,
And a catch provided at an end of the insert to limit the depth at which the sleeve is inserted into the second connector. 28. The method of claim 27,
And the second connection part is inserted into one end of the drain hose. 29. The method of claim 28,
The anti-vibration member is a dish washer, characterized in that consisting of injection molding of plastic or rubber. The method of claim 21,
The dustproof member is dishwasher, characterized in that formed integrally with the drain hose. 25. The method of claim 24,
The first connection portion has a size corresponding to the diameter of the washing water inlet, and the second connection portion has a size corresponding to the diameter of the extension so that the dustproof member can be shared. In the drain hose is coupled to the drain pump for forcibly draining the wash water accommodated in the tub of the washing machine, the drain hose,
Hose folds stretched in the longitudinal direction of the drain hose; And
It includes; extending portion extending from one end of the hose folds,
A dustproof member formed of a material different from the extension part and the hose wrinkle part and having a pleat part for absorbing vibration of the drain pump;
Drainage hose, characterized in that it comprises. 33. The method of claim 32,
The dustproof member and the extension portion drain hose, characterized in that coupled to the heat fusion method. 34. The method of claim 33,
The dustproof member further includes a strength reinforcing member for reinforcing the strength of the dustproof member so that the dustproof member and the extension part may be thermally fused to each other.
The strength reinforcing member,
An insertion part inserted into one end of the dustproof member;
And a catching part having a shape that is bent outward from an end of the inserting part so that the strength reinforcing member can be caught by one end of the dustproof member. main body;
A drain pump disposed under the main body;
A drain hose for guiding the water pumped by the drain pump to the outside of the main body; and
A dustproof member formed of a material different from the drain hose and having a wrinkle portion coupled between the drain pump and the drain hose to absorb vibrations of the drain pump when water is drained;
Washing apparatus comprising a. 36. The method of claim 35,
The dustproof member,
A first connection part connected to the drain pump;
And a second connecting portion connected to the drain hose.

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