KR20000015671A - Tub cover structure of electric automatic washing machine - Google Patents

Abstract

PURPOSE: A tub cover structure is provided to obtain the improved pumping efficiency, and to prevent the splash of the washing water outside an outer washing tub by forming an inner rounding face in an upper tub cover. CONSTITUTION: The tub cover structure is equipped: an inner rounding face(112) formed in a low tub cover(111) to supply the washing water supplied into an inner washing tub(103) by drawing up between the inner washing tub(103) and an outer washing tub(102) by the centrifugal force according to the rotation of high speed of the inner washing tub(103) connected in a washing machine(101) to the outside of the inner washing tub(103); an outer rounding face(122) formed in the upper tub cover(111) to prevent the outflow of the washing water to the outside; many guide ribs(131) connected between the inner and outer rounding faces(112)(122) to form a passage(115) guiding the washing water while supporting the inner and outer rounding faces(112)(122).

Description

Tub cover structure of automatic washing machine

The present invention relates to a washing machine, and in particular, the inner rounding surface is provided on a low tub cover for guiding the washing water supplied between the washing tank and the laundry outer tank by centrifugal force due to the high-speed rotation of the washing tank coupled to the washing machine. The washing machine supplied through the flow path is supplied to the outer side of the washing tank to obtain an improved pumping efficiency and to form an inner rounding surface on the upper cover to prevent the washing water from splashing out of the washing tank. It relates to a tub cover structure of.

The structure of a washing machine for agitated washing by a conventional pulsator is shown in FIG.

The washing machine 1 and the laundry outer tank (2) that can store the wash water,

A washing tub (3) installed inside the washing tub (2) for washing laundry;

A pulsator (4) installed on the inner bottom surface of the washing tub (3) to impart mechanical rotational force to the laundry while performing forward and reverse rotation, and stir washing the laundry;

A washing shaft 6 coupled to the pulsator 4 to rotate the pulsator 4 forward and reverse,

A dewatering shaft 6-1 coupled to the washing tub 3 to rotate the washing tub 3 in one direction;

A clutch 7 for coupling or separating the washing shaft 6 and the dehydrating shaft 6-1;

A motor 8 connected to the clutch 7 and a pulley and a belt to transfer the rotational force to drive the clutch 7,

In order to discharge the washing water of the washing tub 2 to the outside, it is configured to have a drain valve 9 coupled to the washing tub 2.

Referring to the operation of the conventional washing machine as described above are as follows.

Put the laundry inside the washing tank (3) and press the start button, the water is supplied.

The wash water supplied to the washing tub 3 is filled with the washing tub 3 and the washing tub 2, and the water supply is stopped by the sensor when the predetermined level is reached.

At the same time as the water supply is stopped, the motor 8 rotates forward and backward while rotating the washing shaft 6 forward and reverse.

Accordingly, the pulsator 4 connected to the laundry shaft 6 washes the laundry while the forward and reverse rotations are performed.

In addition, when the washing is completed, the drainage valve 9 is opened while the drainage process is opened, and the washing water of the washing outer tub 2 is drained to the outside by opening the drainage valve 9.

In addition, when the drainage process is completed, a dehydration process for draining the wash water staying with the laundry in the washing tub 3 is followed.

In the dehydration process, the washing tub 6 and the pulsator 4 are integrally rotated in one direction at a high speed in a state in which the washing shaft 6 and the dehydration shaft 6-1 are coupled to the plurality of washing holes. Dehydration to the laundry outer tank (2) through (5) and the wash water dewatered to the washing outer tank (2) is drained to the outside through the drain valve (10).

In the conventional washing machine as described above, the washing of the pulsator is performed by the forward and reverse rotation of the pulsator, and thus, in order to satisfy the degree of washing, it is inevitably accompanied by damage or kinking.

In addition, by washing and rinsing with the washing tank 2 filled with water, the amount of use and detergent input are also increased, and the overall washing time is increased by increasing the supply and drainage time not directly related to washing. I had.

The purpose of the present invention for solving and complementing such a conventional problem,

In order to centrifugal washing, the washing water pumped by the inner and outer irradiation is smoothly guided by the low tub cover and the upper tub cover to improve the pumping efficiency and the washing water supplied to the washing tank. Is provided to the outside of the washing tub to obtain an efficient washing performance and provides the purpose of preventing the wash water supplied to the washing tub to splash out of the wash tub.

In order to achieve the above object, the present invention,

An inner rounding surface is provided on the low tub cover to guide the washing water, and an upper rounding surface is formed on the upper cover to prevent the washing water from splashing to the outside, and a flow path for washing water is supplied between the outer rounding surface and the inner rounding surface. By combining the guide ribs to be formed it is possible to achieve the object of the present invention.

1 is a cross-sectional view showing the configuration of a conventional washing machine

Figure 2 is an enlarged cross-sectional view showing a tub cover of the conventional washing machine

Figure 3 is a cross-sectional view showing the configuration of the present invention washing machine

Figure 4 is an exploded perspective view showing the configuration of the tub cover of the present invention

Figure 5 is an enlarged cross-sectional view showing a combined state of the tub cover of the present invention.

Figure 6 is a first embodiment showing a coupling relationship of the upper, lower tub cover and the guide rib of the present invention

Figure 7 is a second embodiment showing a coupling relationship of the upper, lower tub cover and the guide rib of the present invention

Figure 8 is a third embodiment showing the coupling relationship of the upper, lower tub cover and the guide rib of the present invention

Figure 9 is a fourth embodiment showing the coupling relationship of the upper, lower tub cover and the guide rib of the present invention

Figure 10 is a fifth embodiment showing the coupling relationship between the upper, the lower tub cover and the guide rib of the present invention

Figure 11 is a sixth embodiment showing the coupling relationship between the upper, lower tub cover and the guide rib of the present invention

Figure 12 is a bottom view of the present invention Figure 11

Figure 13 is a seventh embodiment showing the coupling relationship between the upper, lower tub cover and the guide rib of the present invention

Figure 14 is a bottom view of the present invention Figure 13

15 is an eighth embodiment showing the coupling relationship between the upper, lower tub cover and guide rib of the present invention;

Figure 16 is a ninth embodiment showing the coupling relationship between the upper, lower tub cover and the guide rib of the present invention;

17A and 17B are views for explaining the change of the end of the upper cover of the present invention.

18 is a ninth embodiment showing a coupling relationship between the upper, lower tub cover, and guide rib of the present invention;

<Code Description of Main Parts of Drawing>

101-washing machine 102-washing tank

103-Laundry 104-Fluid Balancer

105-chamfered 106-drive shaft

107-Motor 111-Lower Tub Cover

112-inner rounding face 113-leading end

114-Through 115-Euro

116-Discharge outlet 121-Upper cover

122-outer rounding surface 123-leading end

131-Guide Rib 132-Step

133-screw 134-screw

The configuration of the present invention will be described in detail with reference to Figs.

Washing water tank 103 is pumped between the washing tank 103 and the laundry outer tank 102 by the centrifugal force according to the high speed rotation of the washing tank 103 coupled to the washing machine 101 to supply the washing tank 103 to the washing tank 103 Inner rounding surface 112 formed in the low tub cover 111 to supply to the outside of the),

An outer rounding surface 122 formed on the upper cover 121 to prevent the washing water from overflowing to the outside;

A plurality of guide ribs 131 coupled between the inner and outer rounding surfaces 112 and 122 to form a flow path 115 for guiding the wash water while supporting the inner and outer rounding surfaces 112 and 122. Wow,

The guide rib 131 is configured to have a coupling means of the guide rib for engaging.

In addition, the coupling means of the guide rib is manufactured by separately manufacturing the upper tub cover 121, the low tub cover 111 and the guide rib 131 after welding.

In addition, the coupling means of the guide rib is to weld the upper tub cover 121 and the guide rib 131 integrally manufactured and then separately manufactured low tub cover 111.

In addition, the coupling means of the guide rib is manufactured by integrally manufacturing the low tub cover 111 and the guide rib 131, and then welded the separately manufactured upper tub cover 121.

In addition, the coupling means of the guide rib is a plurality of screw holes 133 formed in the guide rib 131 formed integrally with the upper tub cover 121,

A plurality of through holes 114 formed in the low tub cover 111 to coincide with the screw holes 133,

Inserted into the through hole 114 and provided with a plurality of screws 134 fastened to the screw hole 133.

In addition, the guide rib 131 is to the tip of the upper and lower tub covers 121 and 111 to guide the wash water to the discharge holes 116 formed by the upper and lower tub covers 121 and 111. Further provided with guide ribs 131 extending.

In addition, the guide rib 131 guides the wash water to the middle of the flow path 115 formed by the upper and lower tub covers 121 and 111, and then supplies the upper and lower tub covers 121 to be mixed and supplied. A guide rib 131 formed to the middle of the flow path 115 of the (111) was further provided.

Further, in order to prevent the upper tub cover 121 from protruding outward, a stepped portion 132 formed on the guide rib 131 to which the upper tub cover 121 is coupled is further provided. The front end portion of the outer rounding surface 122 formed on the putter cover 121 and the front end length L1 of the inner rounding surface 112 formed on the low tub cover 111 were formed to have the same length.

The tip length L2 of the outer rounding surface 122 formed on the upper tub cover 121 is shorter than the tip length L1 of the inner rounding surface 112 formed on the low tub cover 111.

In addition, the tip length L4 of the outer rounding surface 122 formed on the upper tub cover 121 is longer than the tip length L1 of the inner rounding surface 112 formed on the low tub cover 111.

In addition, the angle θ of the front end portion 123 of the outer rounding surface 122 formed on the upper cover 121 may be horizontally adjusted to adjust the width S of the discharge port 116 through which the washing water is discharged. It is.

In addition, only the width S of the discharge port through which the washing water is discharged without changing the angle θ of the tip portion 123 of the outer rounding surface 122 formed on the upper cover 121 may be adjusted. will be.

In addition, the height H of the tip portion 123 of the outer rounding surface 122 formed on the upper cover 121 is vertically changed to adjust the spray angle of the washing water discharged to the discharge port 116. .

In addition, the front end portion 123 of the outer rounding surface 122 formed on the upper tub cover 121 has a front end portion 113 of the inner rounding surface 112 formed on the low tub cover 111 formed of a garden, respectively. It is composed of semi-circular (R1) (R2) of different sizes.

In addition, a first space formed between the low tub cover 111 and the fluid balancer 104 to prevent the low tub cover 111 from colliding with the fluid balancer 104 coupled to the washing tub 103. The space part T1 was further provided.

Further, in order to prevent the fluid balancer 104 and the laundry outer tub 102 from colliding with each other, a second separation space T2 formed between the fluid balancer 104 and the laundry outer tub 102 is further provided.

In addition, the first spaced apart space portion (T1) and the second spaced space portion (T2) is to be spaced by a relatively same dimension.

In addition, the chamfered surface 105 formed on the fluid balancer 104 to prevent the front end portion 113 of the low tub cover 111 and the fluid balancer 104 coupled to the washing inner tub 103 is prevented. It was further equipped.

Referring to the operation of the present invention as described above is as follows.

First, Figure 3 is a cross-sectional view showing a washing machine of the present invention, when the laundry is put into the washing tank 103 of the washing machine 101 and pressing the start button is a water supply administration.

When the washing water of a predetermined level is supplied to the washing inner tank 103 and the washing outer tank 102 by the water supply administration, the water supply is stopped and the washing process is performed.

In addition, the washing process is performed by the rotation of the motor 107.

That is, the drive shaft 106 is rotated forward and reverse by the forward and reverse rotation of the motor 107, and the washing inner tank 103 is rotated forward and reverse by the forward and reverse rotation of the drive shaft 106.

Therefore, the laundry of the washing tub 103 is washed by the flow of washing water by the forward and reverse rotation of the washing tub 103.

At this time, in order to perform the centrifugal washing, the rotation speed of the motor 107 should be increased.

That is, as the rotation speed of the motor 107 increases, the rotation speed of the drive shaft 106 and the washing inner tank 103 also increases, so that the centrifugal force increases.

Therefore, the laundry of the washing tub 103 is brought into close contact with the inner wall surface of the washing tub 103 by the centrifugal force, and the washing water passes between the laundry and the ol.

At this time, since the stains on the laundry are washed by the permeable washing water, the laundry is more clean.

In addition, the wash water passing through the laundry between the ol and the ol is drained to the washing tub 102 through the washing hole of the washing tub 103, the washing water drained to the washing tub 102 is washed Due to the large centrifugal force generated by the high speed rotation of the inner tub 103, the washing tank 103 and the outer tub 102 are raised upward.

The washing water rising between the washing tub 103 and the washing tub 102 as described above is supplied between the low tub cover 111 and the washing tub 102 as shown in FIG. It is discharged to the discharge port 116 through the flow path 115 between the putter cover 121.

At this time, the wash water supplied through the flow path 115 is smoothly discharged to the discharge port 116 by the guide of the inner rounding surface 112 formed on the low tub cover 111.

In addition, since the washing water is supplied to the outer side of the washing inner tub 103 by the outer rounding surface 122 formed on the upper cover 121, the washing inner tub 103 is not splashed out, and thus the washing performance can be improved. .

In addition, a plurality of guide ribs coupled between the inner and outer rounding surfaces 112 and 122 to form a flow path 115 for guiding the washing water while supporting the inner and outer rounding surfaces 112 and 122. As shown in FIG. 6, the upper tub cover 121, the low tub cover 111, and the guide rib 131 are separately manufactured, and then welded to each other to be completed.

In addition, the upper tub cover 121 and the guide rib 131 may be integrally manufactured, and then the separately manufactured low tub cover 111 may be welded as shown in FIG. 7.

In addition, the low tub cover 111 and the guide rib 131 may be integrally manufactured, and then the separately manufactured upper tub cover 121 may be welded as shown in FIG. 8.

In addition, after matching the plurality of through holes 114 formed in the low tub cover 111 with a plurality of screw holes 133 formed in the guide rib 131 formed integrally with the upper tub cover 121 in FIG. As shown, it may be fixed by a plurality of screws (134).

Further, the washing water can be guided to the discharge port 116 by the guide ribs 131 of FIG. 9 extending to the front end portions 123 and 113 of the upper and lower tub covers 121 and 111. The laundry can be guided and supplied smoothly.

In addition, the guide ribs 131 of FIG. 10 formed to the middle of the upper and lower tub cover 121 and 111 to the middle of the flow path 115 may be guided to the middle of the flow path 115, and then mixed and supplied. By mixing the washing water supplied through each guide rib 131 in the flow path 115, and then supplied to the washing tank 102, the purpose of the present invention.

In addition, the upper tub cover 121 is prevented from protruding outward by the stepped portion 132 of FIG. 5 formed in the guide rib 131 to which the upper tub cover 121 is coupled.

In addition, the front end portion 123 of the outer rounding surface 122 formed on the upper tub cover 121 and the length L1 of the front end portion 113 of the inner rounding surface 112 formed on the low tub cover 111 are illustrated in FIG. 11. And by forming the same length as shown in Figure 12 it is possible to vertically supply the washing water to the outside of the washing tub 103.

Then, the length L2 of the tip portion 123 of the outer rounding surface 122 formed on the upper tub cover 121 is the length L1 of the tip 113 of the inner rounding surface 112 formed on the low tub cover 111. By forming a shorter as shown in FIG. 15, it is possible to adjust the spray angle of the washing water discharged to the discharge port 116.

In addition, the front end portion 123 of the outer rounding surface 122 formed in the upper cover 121 is horizontally changed as shown in Figs. 11 and 13 so that the width S of the discharge port 116 through which the washing water is discharged. To adjust.

That is, the angle θ of the tip portion 123 of the upper cover 121 shown in FIG. 11 is changed within a predetermined variable width S to form a curve as shown in FIG. 12, thereby improving pumping performance. .

In addition, the tip portion 123 of the upper cover 121 shown in FIG. 13 is changed in the angle θ of the tip portion 123 in a constant variable width S so that the curve shown in FIG. Since it is possible to improve the pumping performance.

Then, the height of the tip portion 123 of the outer rounding surface 122 formed on the upper tub cover 121 is formed to have the same height L1 as the tip portion 113 of the low tub cover 111 as shown in FIG. As shown in FIG. 15, the height of the low tub cover 111 may be higher than the front end 113 of the lower tub cover 111, and the height of the lower tub cover 111 may be lower than the front end 113 of the low tub cover 111. The spray angle of the washing water discharged to the discharge port 116 can be adjusted according to the conditions of the washing machine 101.

That is, the tip 113 of the upper tub cover 121 is raised up and down based on the position of the tip 113 of the low tub cover 111 as shown in FIG. 17 (A) (B). To be variable.

The front end portion 123 of the outer rounding surface 122 formed on the upper tub cover 121 has a front end portion 113 of the inner rounding surface 112 formed on the low tub cover 121. By forming the semicircular (R1) (R2) of a different size as shown in Figure 18 it is possible to increase the supply efficiency of the wash water.

In addition, by forming the first separation space (T1) formed between the low tub cover 121 and the fluid balancer 104 as shown in Figure 5 coupled to the low tub cover 121 and the washing tub 103 The collision of the fluid balancer 104 was prevented.

In addition, a collision between the fluid balancer 104 and the laundry outer tub 102 is prevented by the second separation space T2 formed between the fluid balancer 104 and the laundry outer tub 102 as shown in FIG. 5. .

In addition, since the first spaced apart space portion (T1) and the second spaced space portion (T2) are relatively spaced apart by the same dimension it is possible to flexibly cope with the shaking of the washing tub 103.

Then, by forming the chamfered surface 105 formed in the fluid balancer 104 as shown in Figure 5 by the fluid balancer 104 coupled to the front end portion 113 of the low tub cover 111 and the washing tank 103. It will prevent the bumping.

The present invention has the inner rounding surface for guiding the wash water in the low tub cover, and the outer cover to form an outer rounding surface to prevent the wash water from splashing to the outside, and the washing water between the outer rounding surface and the inner rounding surface By combining the guide ribs to form a flow path that can be supplied, the washing water is pumped to the inner and outer irradiation for centrifugal washing smoothly guides a large amount of washing water by the low tub cover and the upper cover In addition to improving the pumping efficiency, the washing water supplied to the washing tank can obtain an efficient washing performance by supplying to the outside of the washing tank and has a useful effect of preventing the washing water supplied to the washing tank from splashing out of the washing tank.

Claims (19)

An inner rounding surface formed on the low tub cover for supplying the washing water supplied to the washing tank by the centrifugal force according to the high speed rotation of the washing tub, coupled to the washing machine, to the outside of the washing tub; An outer rounding surface formed on an upper cover to prevent the washing water from overflowing to the outside; A plurality of guide ribs coupled between the inner and outer round surfaces to form a flow path for guiding the washing water while supporting the inner and outer round surfaces; Tub cover structure of a full automatic washing machine, characterized in that the coupling means of the guide rib for coupling the guide rib. The method of claim 1, The coupling means of the guide rib tub cover structure of the automatic washing machine, characterized in that the upper tub cover, the low tub cover and the guide rib separately manufactured and welded. The method of claim 1, The coupling means of the guide rib is a tub cover structure of a full-automatic washing machine, characterized in that the upper tub cover and the guide rib integrally manufactured and welded separately manufactured low tub cover. The method of claim 1, The coupling means of the guide rib tub cover structure of a full-automatic washing machine, characterized in that the lower tub cover and the guide ribs are manufactured integrally and then welded separately manufactured upper tub cover. The method of claim 1, The coupling means of the guide rib and a plurality of screw holes formed in the guide rib formed integrally with the upper tub cover, A plurality of through holes formed in the low tub cover to coincide with the screw holes; Tub cover structure of the automatic washing machine, characterized in that it is provided with a plurality of screws that are inserted into the through-hole fastened by a screw hole. The method of claim 1, The guide rib is a tub cover structure of a full-automatic washing machine, characterized in that it further comprises a guide rib extending to the upper end of the upper, the lower tub cover to guide the wash water to the discharge port formed by the upper, the lower tub cover. The method of claim 1, The guide ribs further include guide ribs formed to guide the wash water to the middle of the flow path formed by the upper and lower tub covers, and then to the middle of the flow path of the upper and low tub covers. Tub cover structure of automatic washing machine. The method of claim 1, Tub cover structure of a full-automatic washing machine, characterized in that it further comprises a stepped portion formed in the guide rib to which the upper tub cover is coupled to prevent the upper tub cover from protruding outward. The method of claim 1, Tub cover structure of a full automatic washing machine, characterized in that the front end portion of the outer rounding surface formed in the upper tub cover and the front end length (L1) of the inner rounding surface formed in the low tub cover to the same length. The method of claim 1, Tub cover structure of a full-automatic washing machine, characterized in that the front end length (L2) of the outer rounding surface formed on the upper tub cover is shorter than the front end length (L1) of the inner rounding surface formed on the low tub cover. The method of claim 1, Tub cover structure of a full-automatic washing machine, characterized in that the front end length (L4) of the outer rounding surface formed on the upper tub cover longer than the front end length (L1) of the inner rounding surface formed on the low tub cover. The method of claim 1, Tub cover structure of a full-automatic washing machine characterized in that it is possible to adjust the width (S) of the discharge port through which the washing water is discharged by horizontally changing the tip angle (θ) of the outer rounding surface formed in the upper tub cover. The method of claim 1, Tub cover structure of a full-automatic washing machine, characterized in that it is possible to adjust only the width (S) of the discharge port through which the washing water is discharged without changing the tip angle (θ) of the outer rounding surface formed on the upper tub cover. The method of claim 1, It is possible to adjust the spray angle of the wash water discharged to the discharge port 116 by vertically changing the height (H) of the front end portion 123 of the outer rounding surface 122 formed on the upper cover 121 Tub cover structure of a full automatic washing machine. The method of claim 1, Tub of the automatic washing machine, characterized in that the semi-circular shape (R1) (R2) of different sizes with respect to the front end portion of the inner rounding surface formed on the low tub cover made of a garden formed in the upper tub cover Cover structure. The method of claim 1, Tub of the automatic washing machine further comprises a first separation space (T1) formed between the low tub cover and the fluid balance in order to prevent the low tub cover and the fluid balancer coupled to the washing tank. Cover structure. The method of claim 15, Tub cover structure of a full automatic washing machine, characterized in that it further comprises a second separation space portion (T2) formed between the fluid balancer and the laundry outer tub in order to prevent the fluid balancer and the laundry outer tub. The method according to claim 16 or 17, The first cover space portion (T1) and the second space space portion (T2) of the tub cover structure of a full-automatic washing machine, characterized in that spaced by relatively the same dimensions. The method of claim 1, And a chamfering surface formed on the fluid balancer so as to prevent the front end of the low tub cover from colliding with the fluid balancer coupled to the washing tub.