KR20150080358A - Dish Washing Machine - Google Patents

Abstract

The present invention relates to a dish washer comprising: a spray nozzle fixed on one side of a washing tank; and a vane formed to be movable in the washing tank, and reflecting washing water sprayed from the spray nozzle to dishes. According to one aspect of the present invention, the dish washer comprises: the washing tank located in the body; a plurality of spray nozzles spraying washing water into the washing tank; a plurality of vanes respectively moving in the washing tank and reflecting washing water sprayed from the spray nozzle to the dishes; and a rail guiding movement of the vanes. The dish washer divides each area of the washing tank, thereby variously washing the dishes according to types and contamination levels of the dishes.

Description

Dish Washing Machine [0002]

The present invention relates to a dishwasher including an injection nozzle fixed to one side of a washing tank and a vane which is movably provided inside the washing tank and reflects wash water sprayed from the spray nozzle toward the table side.

The dishwasher includes a main body having a washing tank therein, a basket for storing the dishware, a sump for storing the washing water, a spray nozzle for spraying the washing water, and a pump for supplying the sump washing water to the spray nozzle, It is household appliances that wash dishes by spraying high-pressure washing water.

In general, the dishwasher adopts a rotor type spray structure having a rotating spray nozzle. The rotary nozzle injects the washing water while rotating by the water pressure. Since such a rotating nozzle injects the washing water only in the range of the turning radius, an area where washing water is not sprayed may occur. Therefore, a so-called linear type injection structure is proposed so as not to generate a region where the washing water is not sprayed.

The linear type injection structure is provided with a fixed nozzle fixed to one side of the washing tank and a vane that reflects washing water sprayed from the spray nozzle while moving inside the washing tank to the table side. As shown in FIG.

The fixed nozzle is fixed to the rear wall side of the washing tank with a plurality of spray holes arranged in the left-right direction of the washing tank. The vane extends in the left-right direction of the washing tank so as to reflect the washing water sprayed from the plurality of spray holes, As shown in Fig.

The linear type injection structure further includes a drive device capable of driving the vane. The driving device may be implemented in various ways. For example, the driving device may include a motor, a belt connected to the motor to transmit a driving force to the vane, and a rail for guiding movement of the vane. When the motor is driven, May be provided to move on the rails.

In a distribution apparatus for distributing wash water stored in a sump to injection nozzles, a distribution apparatus of a different structure may be preferred in comparison with a rotor type injection structure in a linear type injection structure.

In the case where the spray nozzle disposed at the lower part of the washing tank is a rotary nozzle, the outlet of the distribution device is provided so as to face upward, which shortens the length of the flow path connecting the outlet of the distribution device and the rotary nozzle and minimizes the pressure loss of the washing water .

However, since the fixed nozzle is disposed adjacent to the rear wall of the washing tub when the spray nozzle disposed at the lower portion of the washing tank is a fixed nozzle, the outlet of the dispensing apparatus does not need to be provided so as to gaze upward, The flow path connecting the outlet of the dispensing apparatus and the fixed nozzle must be bent rightward as soon as starting from the outlet of the dispensing apparatus, so that the pressure loss of the washing water may be increased.

On the other hand, since the injection nozzles are fixed in the linear type injection structure, it is possible to divide the cleaning water into only a part of the cleaning tank by distributing the cleaning water to only some of the injection nozzles among the whole injection nozzles.

One aspect of the present invention provides a dishwasher having a linear type spray structure, wherein the structure is improved so that each area can be divided and cleaned.

The present invention provides a washing machine comprising a main body, a washing tank provided inside the main body, a plurality of spray nozzles for spraying washing water into the washing tank, a washing water sprayer for spraying washing water sprayed from the spray nozzle, A plurality of vanes for guiding the movement of the vane, and a rail for guiding movement of the vane.

The plurality of vanes may be connected to the belt by the driving pulley and the idle pulley, and may move in conjunction with each other.

The plurality of vanes may be moved by the water pressure of the washing water sprayed from the spray nozzle.

And a driving device for driving the plurality of vanes.

The driving device may include the rail, a motor for generating driving force, and a belt connected to the driving pulley and the idler pulley to transmit the driving force of the motor to the vane.

The rails are provided in the same number as the number of the plurality of vanes, and can be independently associated with the vanes.

The drive device is provided in the same number as the number of the plurality of vanes, and can independently drive the vane.

The plurality of vanes can be divided and washed inside the washing tub.

At least one of the plurality of injection nozzles may be a fixed nozzle fixed to an inner wall of the washing tub, and at least one may be a rotary nozzle for spraying washing water while rotating inside the washing tub.

The driving device includes a rear holder rotatably supporting the driving pulley and coupled to one end of the rail by a tension of the belt, and an idle pulley rotatably supporting the idle pulley, And a front holder coupled to the other end of the housing.

According to another aspect of the present invention, there is provided a washing machine comprising a main body, a washing tank provided in the main body, at least one rotating nozzle rotating to spray washing water into the washing tank, a fixing nozzle located on the inner wall of the washing tank, And at least one vane for reflecting the washing water sprayed from the fixed nozzle to the tableware side.

The first region in which the vane moves and the second region in which the washing water is sprayed from the rotating nozzle may be independently cleaned.

The first area and the second area may correspond to different areas.

At least a portion of the first region and the second region may overlap.

A plurality of vanes may be provided, and the vanes may be connected by a belt by a driving pulley and an idle pulley so as to be interlocked with the inside of the washing tub.

One of the plurality of vanes may be moved in the first direction by the water pressure of the washing water sprayed from the fixed nozzle and the other may move in the second direction.

The plurality of vanes may be provided, and the inside of the washing tub may be independently movable.

And a driving device for driving the plurality of vanes, wherein the driving device includes: a motor for generating a driving force; a driving belt connected to the driving pulley and the idler pulley for rotating the driving force of the motor to the vane; And may include rails for guiding movement.

The drive unit is provided in the same number as the number of the plurality of vanes, and can independently drive the vane.

The plurality of rotary nozzles may include a first region to be cleaned by the vane and a second region and a third region to be cleaned by the rotary nozzle.

According to the idea of the present invention, since each area of the washing tub can be divided and washed, the washing of the tableware can be variously cleaned according to the type of the tableware and the degree of contamination of the tableware.

1 is a schematic sectional view showing a dishwasher according to an embodiment of the present invention.
FIG. 2 is a bottom view of the dishwasher of FIG. 1. FIG.
Fig. 3 is a view showing a vane and a driving device of the dish washer of Fig. 1, in which the structure of the driving device is exploded.
Fig. 4 is a view showing a belt of the dishwasher of Fig. 1 and a belt holder. Fig.
Fig. 5 is a sectional view showing a rail, a belt, a belt holder, and a vane holder of the dish washer of Fig. 1;
Fig. 6 is a view showing a rail, a belt, a driving pulley and a rear holder of the dish washer of Fig. 1. Fig.
7 is a sectional view showing a rail, a belt, a driving pulley, and a rear holder of the dish washer of Fig. 1. Fig.
8 is a view showing a rail, a belt, an idle pulley, and a front holder of the dish washer of Fig. 1;
Fig. 9 is a sectional view showing a rail, a belt, an idle pulley, and a front holder of the dish washer of Fig. 1; Fig.
FIG. 10 is a view showing a vane and a vane holder of the dish washer of FIG. 1. FIG.
FIG. 11 is a perspective view showing a vane of the dish washer of FIG. 1; FIG.
FIG. 12 is an enlarged view of a part of the vane and the vane holder of the dish washer of FIG. 1. FIG.
13 is a view showing a case where a plurality of vanes are placed in a dishwasher according to another embodiment of the present invention.
FIG. 14 is a view schematically showing movement of a plurality of vanes of a dishwasher according to another embodiment of the present invention. FIG.
15 is a view showing a structure of a dishwasher according to another embodiment of the present invention.
16 is a view showing the structure of a dishwasher according to another embodiment of the present invention.
Fig. 17 is a view showing the flow path structure of the dish washer of Fig. 1. Fig.
FIG. 18 is an exploded view of the fixed nozzle assembly of the dish washer of FIG. 1. FIG.
Fig. 19 is a sectional view showing the fixed nozzle assembly of the dish washer of Fig. 1; Fig.
FIG. 20 is a view showing a dispensing apparatus of the dish washer of FIG. 1;
FIG. 21 is an exploded view of the configuration of the dispenser of the dish washer of FIG. 1;
Fig. 22 is an exploded view of the configuration of the opening and closing member of the dispenser of the dish washer of Fig. 1;
Fig. 23 is a sectional view showing the dispensing apparatus of the dish washer of Fig. 1; Fig.
Fig. 24 is an enlarged view of a portion A in Fig. 23. Fig.
Fig. 25 is a side view showing the dispensing apparatus of the dish washer of Fig. 1; Fig.
Fig. 26 is an enlarged view of a cam member of the dispensing apparatus of the dish washer of Fig. 1; Fig.
Fig. 27 is a view showing the relationship between the on and off times of the microswitches of the dispenser of the dishwasher of Fig. 1 and the rotational position of the opening and closing member. Fig.
FIG. 28 is a view showing the operation of the dispensing apparatus of the dishwasher of FIG. 1, in which only the second outlet is opened and the washing water is dispensed only to the rotating nozzles.
Fig. 29 is a view showing the operation of the dispensing apparatus of the dishwasher of Fig. 1, in which only the third outlet is open so that the washing water is distributed only to the right fixing nozzles.
Fig. 30 is a view showing the operation of the dispensing apparatus of the dishwasher of Fig. 1, in which the first outlet and the third outlet are opened and the washing water is dispensed only to the left fixed nozzle and the right fixed nozzles.
Fig. 31 is a view showing the operation of the dispensing apparatus of the dishwasher of Fig. 1, in which only the first outlet is opened and the washing water is dispensed only to the left fixed nozzles.
32 is a view showing the bottom plate, the bottom plate cover and the motor of the washing tank of the dish washer of FIG. 1 in an exploded view;
Fig. 33 is a sectional view of the bottom plate, the bottom plate cover, and the motor of the dish washer of Fig. 1; Fig.
FIG. 34 is an exploded view of a vane, a rail assembly, a spray nozzle assembly, and a bottom plate cover of the dishwasher of FIG. 1; FIG.
35 to 37 are views showing a rotating operation of the vane of the dish washer of Fig. 1;
FIG. 38 is a view showing an operation of the vane to reflect washing water in a vane moving section of the dish washer of FIG. 1;
FIG. 39 is a view showing an operation of the vane to reflect washing water in a non-vane moving section of the dish washer of FIG. 1;
40 is a view showing the sump of the dish washer of FIG. 1, the course filter, and the fine filter.
41 is a view showing the sump of the dishwasher of Fig. 1, the course filter, the fine filter, and the microfilter disassembled.
42 is a sectional view taken along the line I-I in Fig.
FIG. 43 is an enlarged view of a portion B in FIG. 42; FIG.
44 is a sectional view taken along a line II-II in Fig. 43;
FIG. 45 is an enlarged view of the portion of FIG. 44C; FIG.
46 is a plan view showing the sump of the dishwasher of Fig. 1 and the course filter, showing the locking operation of the course filter. Fig.
Fig. 47 is a side view showing the course filter of the dish washer of Fig. 1; Fig.
Fig. 48 is a view showing the sump and the course filter of the dish washer of Fig. 1, showing the locking operation of the course filter. Fig.
49 is a sectional view showing the sump of the dish washer of Fig. 1, the course filter, and the microfilter.
50 is an enlarged plan view showing a course filter of the dishwasher of FIG. 1 and a part of the microfilter.
51 is a plan view showing a lower portion of the washing tub of the dish washer of FIG.

Hereinafter, preferred embodiments according to the present invention will be described in detail.

FIG. 1 is a schematic cross-sectional view illustrating a dishwasher according to an embodiment of the present invention, and FIG. 2 is a bottom view of the dishwasher of FIG. 1.

1 to 2, an overall structure of a dishwasher according to an embodiment of the present invention will be outlined.

The dishwasher 1 includes a main body 10 forming an outer appearance, a washing tub 30 provided inside the main body 10 and baskets 12a and 12b provided inside the washing tub 30 for accommodating the dishes A circulation pump 51 for pumping washing water of the sump 100 and supplying the washing water to the injection nozzles 311, 313, 330 and 340; A drain pump 52 for discharging the washing water of the sump 100 to the outside of the main body 10 together with the dirt, a vane 400 for moving the inside of the washing tub 30 to reflect the washing water to the dish side, (Not shown).

The washing tub 30 may have a substantially box shape opened at the front so that the dishware can be inserted and removed. The front opening of the washing tub 30 can be opened and closed by the door 11. [ The washing tub 30 may have a top wall 31, a back wall 32, a left wall 33, a right wall 34 and a bottom plate 35.

The baskets 12a and 12b may be wire racks made of wires so that the washing water can pass without being washed. The baskets 12a and 12b may be detachably provided inside the washing tub. The baskets 12a and 12b may include an upper basket 12a disposed at an upper portion of the washing tub 30 and a lower basket 12b disposed at a lower portion of the washing tub 30. [

The spray nozzles 311, 313, 330 and 340 can wash the dishes by spraying the wash water at a high pressure. The spray nozzles 311, 313, 330 and 340 include an upper rotary nozzle 311 provided at an upper portion of the washing tub 30, an intermediate rotary nozzle 313 provided at the center of the washing tub 30, And may include fixed nozzles 330, 340.

The upper rotating nozzle 311 is provided on the upper side of the upper basket 12a and can discharge the washing water downward while being rotated by the water pressure. For this purpose, injection holes 312 may be provided at the lower end of the upper rotary nozzle 311. The upper rotating nozzle 311 can spray the washing water directly toward the tableware housed in the upper basket 12a.

The intermediate rotary nozzle 313 is provided between the upper basket 12a and the lower basket 12b and is capable of spraying the washing water in the vertical direction while rotating by the water pressure. For this, injection holes 314 may be provided at the upper and lower ends of the intermediate rotary nozzle 313. The intermediate rotary nozzle 313 can spray the washing water directly toward the tableware housed in the upper basket 12a and the lower basket 12b.

The fixed nozzles 330 and 340 are provided so as not to move unlike the rotating nozzles 311 and 313 and are fixed to one side of the washing tub 30. The fixed nozzles 330 and 340 are disposed adjacent to the rear wall 32 of the washing tub 30 so as to spray the washing water toward the front of the washing tub 30. Therefore, the washing water sprayed from the fixed nozzles 330, 340 may not directly direct to the tableware.

The washing water sprayed from the fixed nozzles 330 and 340 can be reflected to the tableware side by the vane 400. The fixed nozzles 330 and 340 are disposed under the lower basket 12b and the vane 400 can reflect the washing water sprayed from the fixed nozzles 330 and 340 upward. That is, the washing water injected from the fixed nozzles 330 and 340 can be reflected by the vane 400 toward the tableware accommodated in the lower basket 12b.

The fixed nozzles 330 and 340 may have a plurality of ejection holes 331 and 341 arranged in the left-right direction of the washing tub 30, respectively. The plurality of ejection holes (331, 341) can eject wash water toward the front side.

The vane 400 can be elongated in the left and right direction of the washing tub 30 so as to reflect all the washing water injected from the plurality of injection holes 331 and 341 of the fixed nozzles 330 and 340. That is, one longitudinal end of the vane 400 is adjacent to the left side wall 33 of the washing tub 30 and the other longitudinal end of the vane 400 is provided adjacent to the right side wall 34 of the washing tub 30 .

The vanes 400 can reciprocate linearly along the spraying direction of the washing water sprayed from the fixed nozzles 330 and 340. That is, the vane 400 can linearly reciprocate along the front-back direction of the washing tub 30. [

Accordingly, the linear injection structure including the fixed nozzles 330, 340 and the vane 400 can clean the entire area of the washing tub 30 without a blind spot. It is different from the case where the washing water can be sprayed only within the range of the turning radius in the case of the rotating nozzles.

The fixed nozzles 330 and 340 may include a left fixed nozzle 330 disposed on the left side of the washing tub 30 and a right fixed nozzle 340 disposed on the right side of the washing tub 30.

As will be described later, the rotating nozzles 311 and 313 and the fixed nozzles 330 and 340 can spray wash water independently of each other. Furthermore, the left fixed nozzle 330 and the right fixed nozzle 340 can also independently spray the washing water.

The washing water injected from the left fixed nozzle 330 is reflected only to the left area of the washing tub 30 by the vane 400 and the washing water injected from the right fixed nozzle 340 is reflected by the washing tub 30 by the vane 400, As shown in FIG.

Therefore, the dishwasher can independently clean the left and right sides of the washing tub 30 separately. Needless to say, unlike the present embodiment, it is needless to say that it is not necessarily divided only into the left and right sides, but it is possible to divide it into further subdivisions according to necessity.

The main structure of the dishwasher according to one embodiment of the present invention will be described in detail below.

Fig. 3 is a view showing a vane and a driving device of the dishwasher of Fig. 1, in which the structure of the driving device is exploded, Fig. 4 is a view showing the belt of the dishwasher of Fig. 1, Fig. 5 is a cross-sectional view showing a rail, a belt, a belt holder and a vane holder of the dishwasher of Fig. 1, Fig. 6 is a view showing a rail of the dishwasher of Fig. 1, a belt, a driving pulley, Fig. 7 is a cross-sectional view showing a rail, a belt, a drive pulley and a rear holder of the dishwasher of Fig. 1, Fig. 8 is a view showing a rail of the dishwasher of Fig. 1, And a front holder. Fig. 9 is a cross-sectional view of the rail, the belt, the idle pulley, and the front holder of the dish washer of Fig.

3 to 8, a vane of a dishwasher according to an embodiment of the present invention and a driving apparatus therefor will be described.

The dishwasher 1 according to an embodiment of the present invention includes a vane 400 that reflects washing water sprayed from fixed nozzles 330 and 340. The vane 400 can linearly reciprocate along the spray direction of the washing water sprayed from the fixed spray nozzles 330,

The dishwasher 1 according to an embodiment of the present invention includes a driving device 420 that linearly reciprocates the vane 400. As shown in Fig.

The driving device 420 includes a motor 530 for generating a driving force and a rail assembly 430 for guiding movement of the vane 400.

The rail assembly 430 includes a rail 440 guiding the movement of the vane 400 and having an internal space 441, a drive pulley 500 connected to the motor 530 and rotated, An idle pulley 510 connected to the belt 520 for rotatably supporting the belt 520 and a belt 520 connected to the belt 520 for rotatably supporting the belt 520. [ A belt holder 480 disposed in the inner space 441 of the rail 400 for linear reciprocating motion coupled to the belt holder 480 and disposed on the outside of the rail 400 for linear reciprocating motion coupled to the belt holder 480, A rear holder 450 which rotatably supports the driving pulley 500 and is coupled to the rear end of the rail 440 and a rear holder 450 which rotatably supports the idler pulley 510, And a front holder 460 coupled to the front end of the rail 440.

The rail 440 may be formed of a metal material. The rail 440 may be provided to extend in the longitudinal direction in the center with respect to the left side wall 33 and the right side wall 34 of the washing tub 30.

The rail 440 may have a tubular shape having an opening 445 at a substantially lower portion thereof. That is, the rail 440 includes an inner space 441, a top wall 442, a bottom wall 444, both side walls 443, and a bottom opening 445 formed in the bottom wall 444 can do. The lower opening 445 may extend from one longitudinal end of the rail 440 to the other end.

The reason why the rail 440 is provided in the tubular shape as described above is that the belt 520 is disposed in the inner space 441 of the rail 400 so that the belt 520 is brought into contact with the tableware of the washing tub 30, So that it is prevented from being disturbed or coming into contact with the washing water of the washing tub 30 to corrode.

The reason why the opening 445 is formed in the lower wall 444 of the rail 440 is that the belt 520 disposed in the internal space 441 of the rail 440 and the belt 520 provided in the outside of the rail 400 And to transmit the driving force of the belt 520 to the vane 400 by connecting the vane 400 to the vane 400.

The belt 520 is wound around a driving pulley 500 and an idle pulley 510 to form a closed curve. When the motor 530 is driven, the belt 520 can rotate in accordance with the rotating direction of the motor 530. The belt 520 may be formed of a resin material containing aramid fibers in consideration of tensile strength, cost, and the like.

On the inner surface of the belt 520, a gear 521 for transmitting the driving force of the belt 520 to the belt holder 480 may be formed.

The belt holder 480 may be disposed in the inner space 441 of the rail 400 and may be coupled to the teeth 521 of the belt 520 to move together with the belt 520. To this end, the belt holder 480 may have a toothed portion 481 coupled to a toothed portion 521 of the belt 520.

 In addition, the belt holder 480 may include legs 482, 483 that are supported on the rails 400. The legs 482 and 483 include at least one lateral legs 482 projecting sideways and supported by the side walls 443 of the rail 400 and projecting downwardly to support the lower wall 444 of the rail 400 And at least one lower leg 483 to be engaged.

The side legs 482 are elastically deformable so as to reduce the noise and vibration due to the collision with the rail 400 and friction due to the movement of the belt holder 480 and to allow the belt holder 480 to move smoothly .

The side legs 482 may be a kind of leaf spring type elastic body. That is, the side legs 482 may include a curved plate that is elastically deformed between the relaxed and compressed shapes.

In addition, the belt holder 480 may have a fastening portion 484 for engagement with the vane holder 490. The fastening portion 484 may include a fastening hole 485 into which the fastening member 496 is inserted.

The vane holder 490 is coupled to the belt holder 480 and moves together with the belt holder 480 to transfer the driving force of the belt holder 480 to the vane 400. [ The vane holder 490 is provided to surround the outer surface of the rail 440.

The vane holder 490 is coupled to the belt holder 480 through the lower opening 445 of the rail 440. To this end, the vane holder 490 may have a fastening hole 491 for engagement with the belt holder 480. Therefore, by fastening the fastening member 496 to the fastening hole 491 of the vane holder 490 and the fastening hole 485 of the belt holder 480, the vane holder 490 and the belt holder 480 are engaged .

The fastening member 496 can be fastened in order to the fastening hole 491 of the vane holder 490 and the fastening hole 485 of the belt holder 480,

The vane holder 490 may have a coupling protrusion 493 to which the vane 400 is detachably coupled. The coupling protrusion 493 may include a coupling shaft portion 494 projecting sideward and a separation preventing portion 495 formed at the end of the coupling shaft 494 to prevent the vane 400 from being separated.

The driving pulley 500 includes a rotating shaft 501, a shaft connecting portion 503 connected to the driving shaft 530 of the motor 530 to receive a driving force, and a belt coupling portion 502 to which the belt 520 is coupled .

The rear holder 450 rotatably supports the driving pulley 500 and is coupled to the rear end of the rail 440. The rear holder 450 includes a pulley support surface 451 for supporting a rotation shaft 501 of the drive pulley 500, a rail support surface 452 for supporting a rear end portion of the rail 440, (Not shown).

The idle pulley 510 includes a rotating shaft 511 and a belt engaging portion 512 to which the belt 520 is engaged.

The front holder 460 includes a front top holder 461 and a front bottom holder 465 coupled to a lower portion of the front top holder 461. The front bottom holder 461 has a front rail 461, And a pulley bracket 467 movably provided along the longitudinal direction of the idler pulley 440 and rotatably supporting the idler pulley 510.

The front top holder 461 includes a pulley support surface 462 for supporting the rotary shaft 511 of the idle pulley 510 and a rail support surface 463 for supporting the front end of the rail 440.

The front bottom holder 465 can be coupled to the lower portion of the front tower holder 461 by a latching structure. The front bottom holder 465 may have an engaging projection 466 which is engaged with the bottom plate 35 of the washing tub 30.

The pulley bracket 467 includes a pulley support surface 468 that supports the rotary shaft 511 of the idler pulley 510.

On the other hand, the rails 440, the belt 520, the driving pulley 500, the rear holder 450, the idle pulley 510 and the front holder 460 are fixed to each other by the tension of the belt 520 Can be assembled.

That is, the tension of the belt 520 pushes the driving pulley 500 in a direction toward the rail 440, and this force is transmitted to the rear holder 450 through the pulley supporting surface 451 of the rear holder 450, And as a result, the rear holder 450 is tightly coupled to the rear end of the rail 440.

The tension of the belt 520 pushes the idle pulley 510 in the direction of approaching the rail 440 and this force is transmitted to the front holder 460 through the pulley supporting surface 462 of the front holder 460, And as a result, the front holder 460 is tightly coupled to the front end of the rail 440.

Meanwhile, the front holder 460 may further include a finite elastic member 470 to maintain the tension of the belt 520. This is because when the belt 520 thermally expands due to the heat inside the washing tub 30, the belt 520 is stretched to reduce the tension of the belt 520, and when the tension of the belt 520 is reduced, It can not be driven.

One end of the elastic member 470 is supported on the front holder 460 and the other end of the elastic member 470 can be supported on the pulley bracket 467. To this end, the front holder 460 and the pulley bracket 467 may be provided with elastic member supporting surfaces 464 and 469, respectively.

The elastic member 470 may be a compression spring. Since the front holder 460 is supported on the rail 440 by the rail supporting surface 463, the elastic force of the elastic member 470 can act on the pulley bracket 467. That is, by the elastic force of the elastic member 470, the pulley bracket 467 can be pressed in a direction away from the rail 440.

At this time, since the pulley bracket 467 is pressed in the direction approaching the rail 440 by the tension of the belt 520, the pulley bracket 467 causes the tensile force of the belt 520 and the elastic force of the elastic member 470 And moves to the position where this balance is achieved.

That is, when the belt 520 is stretched to reduce the tension and the elastic force of the elastic member 470 is greater than the tension of the belt 520, the pulley bracket 467 is retracted from the rail 440 by the elastic force of the elastic member 470 When the pulley bracket 467 is moved away from the rail 440, the belt 520 is pulled back again to restore the tension of the belt 520.

With this configuration, even when the belt 520 is stretched due to thermal expansion, the tension of the belt 520 can be kept constant by moving the pulley bracket 467 and pulling the belt 520, Can be improved.

The assembling procedure of the rail assembly 430 of the dishwasher according to an embodiment of the present invention will be described.

As shown in FIG. 4, the belt holder 480 is coupled to the belt 520.

5, an assembly of the belt 520 and the belt holder 480 is disposed in the inner space 441 of the rail 440. As shown in Fig. Next, the vane holder 490 is coupled to the assembly of the belt 520 and the belt holder 480 through the fastening member 496.

As shown in FIG. 6, the rear holder 450 is assembled at the longitudinal rear end of the rail 440. Next, the drive pulley 500 is engaged with the belt 520.

As shown in Fig. 7, the front tower holder 461 is coupled to the front end portion in the longitudinal direction of the rail 440. As shown in Fig. Next, the belt 520, the idle pulley 510, the pulley bracket 467, and the elastic member 470 are engaged. Next, the assembly of the belt 520, the idle pulley 510, the pulley bracket 467, and the elastic member 470 is pushed into the inside of the front tower holder 461. Next, the front bottom holder 465 is joined to the front top holder 461. [

FIG. 10 is a view showing a vane and a vane holder of the dish washer of FIG. 1. FIG. FIG. 11 is a perspective view showing a vane of the dish washer of FIG. 1; FIG. FIG. 12 is an enlarged view of a part of the vane and the vane holder of the dish washer of FIG. 1. FIG.

10 to 12, a vane according to an embodiment of the present invention will be described.

The vane 400 may be provided to extend in a direction perpendicular to the rail 440.

The vane 400 includes a reflecting portion 401 for reflecting the washing water sprayed from the fixed nozzles 330 and 340, an upper supporting portion 410 bent at the reflecting portion 401, a rear supporting portion 410 bent at the upper supporting portion 410, A cap portion 404 provided at a center portion in the longitudinal direction of the reflector 401 and a rotation engaging portion 409 provided to interfere with the rotation guide 610 of the bottom plate cover 600 A reinforcing rib 414 provided to reinforce the strength of the reflecting portion 401, the upper supporting portion 410 and the rear supporting portion 411, the horizontal supporting portion 412 supported on the upper surface of the vane holder 490, And a vertical support portion 413 supported on the side surface of the holder 490.

Reflecting portion 401 includes reflecting surfaces 402a and 402b that are inclined to reflect washing water. The reflecting surfaces 402a and 402b may include a reflecting surface 402a and a reflecting surface 402b, which are alternately arranged in the longitudinal direction with different inclination so that the reflection angle of the washing water is different.

The cap portion 404 has an engaging groove 405 for engaging with the vane holder 490 and an engaging groove 405 for engaging with the rotation range of the vane 400 when the vane 400 is rotated by the rotation guide 610 of the bottom plate cover 600. [ And a rotation stopper portion 408 for restricting rotation of the rotor 408.

The coupling protrusion 493 of the vane holder 490 can be coupled to the coupling groove 405 of the vane 400. [ Specifically, the engaging shaft portion 494 of the engaging projection 493 can be inserted into the engaging groove 405 of the vane 400. The coupling shaft portion 494 can support the vane 400 in a rotatable manner.

10, the engaging groove 405 of the vane 400 may be formed by elastic hooks 407. As shown in Fig. The elastic hooks 407 are resiliently deformed in the direction in which the engaging shaft portions 494 of the vane holder 490 are pushed or pulled into the engaging grooves 405 of the vane 400. When the engaging portions 494 are inserted or removed, Lt; / RTI > With such a configuration, the vane 400 can be attached to and detached from the vane holder 490.

At both ends of the vane 400 in the longitudinal direction, rollers 415 for smoothly moving the vane 400 may be provided. The bottom plate 35 of the washing tub 30 may be provided with a roller support 39 (FIG. 47) for supporting the rollers 415.

13 is a view showing a case where a plurality of vanes are placed in a dishwasher according to another embodiment of the present invention.

As shown in FIG. 13, the vane 700 may be divided into a plurality of parts. Each vane 700 may be independently driven. Each vane 700 may be separately coupled to the drive 713 for independent actuation of the vane 700. According to one embodiment of the present invention, the rails 712 are provided in the same number as the number of the vanes 700, and can be independently coupled to the vanes 700. So that each vane 700 can be driven independently. That is, the first vane 701 and the second vane 702 can be driven at different speeds. Also, the amount of washing water sprayed from the fixed nozzle assembly 720 may be varied to differentiate the washing area of the first vane 701 and the washing area of the second vane 702. Accordingly, the plurality of vanes 700 can be divided and cleaned inside the washing tub.

FIG. 14 is a view schematically showing movement of a plurality of vanes of a dishwasher according to another embodiment of the present invention. FIG.

As shown in FIG. 14, the vane 720 can be connected to the belt 730 by the drive pulley 731 and the idle pulley 732 so as to be interlocked.

The vane 720 can be moved by the water pressure of the washing water injected from the fixed nozzle assembly 740. That is, by the water pressure of the washing water, the first vane 721 moves in the first direction D1, which is the direction away from the fixed nozzle assembly 740, and the second vane 720, which is connected by the first vane 721 and the belt 730, The second vane 722 can move in a second direction D2 which is opposite to the first vane 721. [ At this time, in the fixed nozzle assembly 740 facing the second vane 722, since the washing water is not sprayed, the second vane 722 can move in conjunction with the movement of the first vane 721. The control of the washing water sprayed from the fixed nozzle assembly 740 may be performed using a dispensing apparatus to be described later.

FIG. 15 is a view illustrating the structure of a dishwasher according to another embodiment of the present invention, and FIG. 16 is a view illustrating the structure of a dishwasher according to another embodiment of the present invention.

As shown in Figs. 15 and 16, the vane 800 and the rotating nozzle 830 are placed together in the washing tub, and the dish can be cleaned. The area where the washing water injected from the fixed nozzle assembly 820 is reflected by the vane 800 and the tableware is to be cleaned is defined as the first area and the area where the tableware is cleaned by the washing water sprayed from the rotating nozzle 830 is defined as the second area Area. The first region and the second region may be independently cleaned. The first region and the second region may correspond to different regions and may not overlap with each other, but the present invention is not limited thereto and may overlap with each other. For example, in the first region, the vane 800 can be adjusted according to the degree of movement of the vane 800, so that the vane 800 moves to the second region, There may be a portion where the second region overlaps. Since the portion where the first area overlaps with the second area can be strongly washed, it is possible to control to place and clean the tableware with many contaminants.

Also, as shown in FIG. 16, a plurality of rotary nozzles 930 may be disposed. The area to be cleaned by the vane 900 is defined as a first area, the area to be cleaned by the first rotating nozzle 931 is defined as a second area, the area to be cleaned by the third rotating nozzle 932 is defined as a third area, . At this time, it is also possible to control so that the first area and the second area or the third area do not overlap or overlap.

FIG. 17 is a view showing the flow path structure of the dishwasher of FIG. 1, FIG. 18 is an exploded view of the fixed nozzle assembly of the dishwasher of FIG. 1, and FIG. 19 is a view of the fixed nozzle assembly of the dishwasher of FIG. Fig.

Referring to FIGS. 17 to 19, the stroke, flow path structure, fixed nozzle assembly structure, and wash water distribution structure of the dishwasher according to the embodiment of the present invention will be described.

The dishwasher may have a water supply stroke, a wash stroke stroke, a drain stroke stroke, and a drying stroke.

In the water supply step, the washing water can be supplied into the washing tub 30 through a water supply pipe (not shown). The washing water supplied to the washing tub 30 flows into the sump 100 provided at the lower part of the washing tub 30 by the gradient of the bottom plate 35 of the washing tub 30 and can be stored in the sump 100. [

In the cleaning stroke, the circulation pump 51 may be activated to pump the wash water of the sump 100. The washing water pumped by the circulating pump 51 may be distributed to the rotating nozzles 311 and 313, the left fixed nozzle 330 and the right fixed nozzle 340 through the distributing apparatus 200. The washing water is sprayed from the spraying nozzles 311, 313, 330, and 340 at a high pressure by the pumping force of the circulation pump 51 to wash the dishes.

The upper rotary nozzle 311 and the intermediate rotary nozzle 313 can receive the washing water from the dispensing apparatus 200 through the second hose 271b. The left fixed nozzle 330 can receive the washing water from the dispensing apparatus 200 through the first hose 271a. The right fixed nozzle 340 can be supplied with the washing water from the dispensing apparatus 200 through the third hose 271c.

In this embodiment, the distribution apparatus 200 is provided with a total of four distribution modes.

In the first mode, the dispensing apparatus 200 supplies wash water only to the rotating nozzles 311, 313 via the second hose 271b.

 In the second mode, the dispensing apparatus 200 supplies wash water only to the right fixed nozzle 340 through the third hose 271c.

In the third mode, the dispensing apparatus 200 supplies washing water only to the left fixed nozzle 330 and the right fixed nozzle 340 through the first hose 271a and the third hose 271c.

In the fourth mode, the dispensing apparatus 200 supplies washing water only to the left fixed nozzle 330 through the first hose 271a.

However, it is needless to say that the dispensing apparatus 200 may be provided with a more various dispensing mode, unlike the present embodiment.

The washing water sprayed from the spray nozzles 311, 313, 330, and 340 blows the dishes, removes dirt adhering to the dishes, drops with the dirt, and can be stored in the sump 100 again. The circulation pump 51 pumps and circulates the wash water stored in the sump 100 again. During the cleaning stroke, the circulation pump 51 can be repeatedly operated and stopped. In this process, the dirt dropped into the sump 100 together with the washing water is collected by the filter mounted on the sump 100 and remains in the sump 100 without being circulated to the injection nozzles 311, 313, 330 and 340.

In the drainage stroke, the drain pump 52 is operated to drain the dirt remaining in the sump 100 and the wash water to the outside of the main body 10 together.

In the drying cycle, a heater (not shown) mounted on the washing tub 30 is operated to dry the dishes.

The structure of the left fixed nozzle 330 and the right fixed nozzle 340 will be described in detail.

The left fixed nozzle 330 includes ejection holes 331 for ejecting washing water, a nozzle channel 332 for supplying washing water to the ejection holes 331, a nozzle inlet 332 for introducing the washing water into the nozzle channel 332, A nozzle body 334 which forms an outer appearance of the nozzle body 334 and a nozzle cover 335 which is coupled to the rear of the nozzle body 334 so as to form a nozzle flow path 332, A decorative member 336 and a coupling hole 337 formed in the nozzle body 334 to couple the left fixing nozzle 330 to a bottom plate cover 600 (FIG. 19) to be described later.

The right fixed nozzle 340 includes ejection holes 341 for ejecting washing water, a nozzle channel 342 for supplying washing water to the ejection holes 3410, a nozzle inlet 343 for introducing the washing water into the nozzle channel 342 A nozzle cover 345 coupled to the rear of the nozzle body 344 so as to form a nozzle flow passage 342 and a nozzle cover 344 coupled to the front of the nozzle body 344. [ Member 346 and a coupling hole 347 formed in the nozzle body 344 to couple the right fixing nozzle 340 to a bottom plate cover 600 to be described later.

Here, the nozzle body 334 of the left fixing nozzle 330 and the nozzle body 344 of the right fixing nozzle 340 may be integrally formed. Accordingly, the left fixed nozzle 330 and the right fixed nozzle 340 may be integral.

Since the left fixed nozzle 330 and the right fixed nozzle 340 are integrally provided, it is easy to horizontally align the left fixed nozzle 330 and the right fixed nozzle 340, It may be easy to couple the nozzle 330 and the right fixing nozzle 340 to the bottom plate cover 600.

The fixed nozzle assembly 320 includes a left fixed nozzle 330 and a right fixed nozzle 340. The nozzle assembly 300 includes a fixed nozzle assembly 320, an upper rotary nozzle 311, and an intermediate rotary nozzle 313.

Fig. 20 is a view showing the dispensing apparatus of the dishwasher of Fig. 1, Fig. 21 is an exploded view of the arrangement of the dispenser of Fig. 1, and Fig. 22 is a cross- Fig. 23 is a sectional view showing the distributor of the dish washer of Fig. 1, and Fig. 24 is an enlarged view of a portion A of Fig.

20 to 24, a description will be given of a dispensing apparatus for a dishwasher according to an embodiment of the present invention.

The dispensing apparatus 200 is provided so as to have a substantially cylindrical shape.

The dispensing apparatus 200 includes a housing 210 having a substantially hollow cylindrical shape and forming an outer tube, an opening and closing member 220 rotatably provided in the housing 210, A supporting member 260 supporting the motor 230 and the housing 210 and a cam member 230 coupled to the motor 230 and the opening and closing member 200 to rotate together with the opening and closing member 200 And a micro switch 250 contacting the cam member 240 to sense the rotational position of the opening and closing member 200.

The housing 210 may be disposed long in the direction of both side walls 33, 34 (FIG. 2) of the cleaning tank 30. [ Hereinafter, the longitudinal direction of the housing 210 is referred to as an axial direction. At one axial end portion of the housing 210, an inlet 211 into which the washing water flows into the housing 210 is formed. A motor 230 is disposed at the other axial end of the housing 210.

 Specifically, the inlet 211 may be provided so as to face the right side wall 34 of the washing tub 30. When the circulation pump 51 is connected to the inlet 211 and the circulation pump 51 is operated, the washing water stored in the sump 100 can be introduced into the interior of the housing 210 through the inlet 211.

A plurality of outlets 212a, 212b and 212c are formed on the circumferential surface of the housing 210. [ The plurality of outlets 212a, 212b, and 212c are arranged at regular intervals along the axial direction. The plurality of outlets 212a, 212b and 212c includes a first outlet 212a, a second outlet 212b and a third outlet 212c.

Here, the plurality of outlets 212a, 212b, and 212c are provided to face the rear wall 32 (FIG. 2) of the washing tub 30. The reason why the plurality of outlets 212a, 212b and 212c can be provided so as to face the rear wall 32 of the washing tub 30 is that the housing (not shown) of the dispensing apparatus 200 according to the embodiment of the present invention The housing 210 has a cylindrical shape and the housing 210 is arranged long in the direction of both side walls 33 and 34 and the opening and closing member 220 rotates around the axial direction of the housing 210, And 212c are opened and closed.

In addition, since a dispensing apparatus generally used in a conventional dishwasher has a hemispherical housing and a plate disk type opening / closing device rotatably provided on the top of the housing, It is a structure that is nothing.

As described above, the dispensing apparatus 200 according to the embodiment of the present invention is configured such that the outlets 212a, 212b and 212c are directed toward the rear wall 32 of the washing tub 30, The pressure loss of the washing water supplied to the fixed nozzles 330 and 340 arranged adjacent to the rear wall 32 of the washing tub 30 is reduced.

This is because the flow path connecting the outlets 212a, 212b, and 212c and the fixed nozzles 330 and 340 can be smoothly formed without an urgent bending portion.

Conversely, if a conventional dispensing device with the outlets facing the top of the dispensing device is applied to the stationary nozzles 330, 340 according to an embodiment of the present invention, the flow path connected to the outlets must be urgently bent immediately backwards as soon as it starts The pressure loss is increased.

The first outlet 212a, the second outlet 212b and the third outlet 212c are arranged in order from the left side of the washing tub 30 to the right side.

That is, the first outlet 212a is relatively close to the left fixed nozzle 330, the third outlet 212c is disposed relatively close to the right fixed nozzle 340, and the second outlet 212b is disposed in the middle thereof .

The first outlet 212a may be connected to the left fixed nozzle 330 through the first hose 271a (FIG. 3). The second outlet 212b may be connected to the rotating nozzles 311 and 313 through the second hose 271b (FIG. 3). The third outlet 212c may be connected to the right fixed nozzle 340 through the third hose 271c (FIG. 3).

Since the respective outlets 212a, 212b and 212c are connected to the spray nozzles 311, 313, 330 and 340 which are relatively close to themselves, the lengths of the hoses 271a, 271b and 271c are shortened and the clogging does not occur, Can be reduced.

The housing 210 is provided with a sump coupling portion 223 for coupling to the sump 100 and a sump coupling portion 229 for coupling the sump 100 to the sump coupling portion 223 . In this embodiment, the sump coupling portion 223 is provided in a groove shape, and the distribution device coupling portion 109 is provided in a protruding shape. The position of the sump 100 can be aligned with the distribution device 200 by combining the sump coupling portion 223 and the distribution device coupling portion 109.

The opening and closing member 220 selectively opens and closes the outlets 212a, 212b and 212c while rotating around the axial direction of the housing 210 in the housing 210. [ Accordingly, the opening and closing member 220 substantially distributes the washing water to the spray nozzles 311, 313, 330 and 340.

The opening and closing member 220 has a substantially hollow cylindrical shape. The opening and closing member 220 includes a rotating body 221 rotating in the housing 210 and sealing members 225 coupled to the rotating body 221 to close the outlets 212a 212b 212c do.

And communication holes 222 may be formed in the circumferential surface of the rotating body 221. The communication holes 222 may allow the washing water to flow smoothly to the outlets 212a, 212b, and 212c when the communication holes 222 are positioned to correspond to the outlets 212a, 212b, and 212c.

When the opening and closing member 220 rotates inside the housing 210, friction between the opening and closing member 220 and the housing 210 is minimized and the opening and closing member 220 is rotated smoothly on the circumferential surface of the rotating body 221 Spaced protrusions 224 may be formed to separate the inner circumferential surface of the housing 210 from the outer circumferential surface of the rotating body 222 by a predetermined distance. The inner circumferential surface of the housing 210 and the outer circumferential surface of the rotating body 222 can always be maintained to be spaced apart by the spacing protrusions 224. [

In addition, the rotation body 221 may have a locking hole 223 to which the sealing members 225 are coupled. The latching protrusions 227 of the sealing members 225 are engaged with the latching holes 223. The latching holes 223 may have different shapes corresponding to the shapes of the latching protrusions 227 of the sealing members 225.

For example, the central latching hole 223 may have a substantially cross shape, and the latching holes 223 on both sides may have a straight shape. Similarly, the latching protrusions 227 of the central sealing member 225 have a cross shape, and the latching protrusions 227 on both sides may have a straight shape.

The reason why the shapes are formed differently is that the shape of the sealing member 225 coupled to the center at the time of assembling and the shape of the sealing members 225 coupled to both sides are different.

One end of the rotating body 221 corresponding to the inlet 211 of the housing 220 is opened at both ends in the axial direction. The other end of the rotating body 221 in the axial direction has camshaft engaging portions 229 to which the camshaft 241 of the cam member 240 is coupled.

The sealing members 225 are coupled to the circumferential surface of the rotating body 221 to close the outlets 212a, 212b, 212c. The sealing members 225 are coupled to the locking holes 223 of the rotating body 221. The sealing members 225 are coupled to the locking holes 223 of the rotating body 221 so as to be somewhat movable in the radial direction. This is for the sealing members 225 to tighten against the outlets 212a, 212b, 212c to enhance the sealing of the outlets 212a, 212b, 212c.

That is, the sealing members 225 move between an open position that is in close contact with the rotating body 221 and a closed position that is in close contact with the outlets 212a, 212b, and 212c. The sealing members 225 can smoothly move from the open position to the closed position by the water pressure of the washing water when the washing water flows into the inside of the housing 210. Therefore, the sealing force of the outlets 212a, 212b, and 212c is improved, and the reliability of the dispensing apparatus 200 can be enhanced.

The sealing member 225 has a sealing portion 226 (FIG. 8) having a curved shape so as to be in close contact with the outlets 212a, 212b and 212c and a sealing portion 226 (Not shown).

The engaging protrusion 227 and the engaging hole 223 are provided to have a clearance so that the sealing member 225 can move in the radial direction. A stopper portion 228 having a larger diameter than the engaging hole 223 may be formed at the end of the engaging projection 227 to prevent the sealing member 225 from completely disengaging from the engaging hole 223.

The sealing member 225 may be integrally formed of a resin material. The sealing member 225 can be easily assembled to the rotating body 221 by strongly pressing the engaging projection 227 and inserting the engaging projection 227 into the engaging hole 223. After assembling the stamper 228, 223 and is not released from the rotating body 221 unless the force is manually applied.

FIG. 25 is a side view showing the dispensing apparatus of the dishwasher of FIG. 1, FIG. 26 is an enlarged view of a cam member of the dispensing apparatus of FIG. 1, and FIG. 27 is a cross- Fig. 28 is a view showing the operation of the dispensing apparatus of the dishwasher of Fig. 1, in which only the second outlet is opened, and the rotary nozzle FIG. 29 is a view showing the operation of dispensing apparatus of the dishwasher of FIG. 1, in which only the third outlet is opened to distribute the wash water only to the right fixed nozzles; FIG. Fig. 30 is a view showing the operation of the dispenser of the dishwasher of Fig. 1, in which the first outlet, only the third outlet is open, the left fixed nozzle, and the right fixed nozzles, A view showing the operation, Fig. 31 is a diagram illustrating the operation of the delivery device of the dishwasher of Figure 1, the outlets are open only one diagram showing the operation according to the wash water is distributed to only the left fixed nozzle.

The operation of the dispensing apparatus according to one embodiment of the present invention will be described with reference to FIGS. 25 to 31. FIG.

 When the motor 230 is operated, rotational force is transmitted to the cam member 240 via the motor shaft 231, and the cam member 240 rotates. The motor 230 may be a one-directional motor that rotates only in one direction.

For the sake of convenience, it is assumed that, with reference to Fig. 25, the cam member 240 rotates clockwise around the rotation center 242. [ When the cam member 240 rotates, a rotational force is transmitted to the opening and closing member 220 through the cam shaft 241 to rotate the opening and closing member 220 together.

The contact member 251 of the microswitch 250 is brought into contact with the cam member 240. The cam member 240 includes radially projecting convex portions 243a, 243b and 243c and radially recessed concave portions 244a, 244b and 244c to turn the microswitch 250 on and off .

The convex portions 243a, 243b and 243c include the first convex portion 243a, the second convex portion 243b and the third convex portion 243c which are arranged in order in the counterclockwise direction and the concave portions 244a and 244b And 244c may include a first concave portion 244a, a second concave portion 244b, and a third concave portion 244c which are sequentially arranged in a counterclockwise direction.

The micro switch 250 is turned on when the contact terminal 251 contacts the convex portions 243a, 243b and 243c of the cam member 240 and is brought into contact with the concave portions 244a, 244b and 244c of the cam member 240 And is set to be off when it contacts. Accordingly, when the motor 230 is driven, the microswitch 250 can be turned on and off alternately.

On the other hand, the dispensing apparatus 200 designates the rotational positions of the opening and closing member 220 according to the on and off times of the microswitch 250, and rotates the opening and closing member 220 to the specific rotational position The motor 230 is rotated or stopped. The control unit may be constituted by an electronic circuit.

For example, the control unit can designate six rotational positions P1, P2, P3, P4, P5, and P6 of the opening and closing member 220, as shown in Fig.

The control unit controls the rotation position of the opening and closing member 220 at six rotation positions P1, P2, P3, P4, P5, and P6 of the opening / closing member 220 at the time when the microswitch 250 is turned on for 5 seconds, P6 as the first rotational position P1.

In this embodiment, since the time at which the micro switch 250 is turned on and off for 5 seconds is unique, a period during which the micro switch 250 is turned on for 5 seconds may be a reference reset period.

In addition, the rotation position of the opening and closing member 220 can be designated as the second rotation position P2 at the time when the on / off member 220 is turned on for 5 seconds, then turned off for 5 seconds, and then turned on again.

In this manner, it is possible to designate from the first rotation position P1 to the sixth rotation position P6.

The contact terminals 251 of the microswitches 250 at the six rotation positions P1, P2, P3, P4, P5 and P6 of the opening and closing member 220 are connected to the contact terminal positions T1 and T2 , T3, T4, T5, T6).

In the control unit, information on the rotational position of the opening / closing member 220 may be stored in advance in the form of a ROM in accordance with the on / off time of the microswitch 250.

The control unit is also provided with information on the opening and closing of the outlets 212a, 212b and 212c of the distributing apparatus 200 according to the respective rotational positions of the opening and closing member 220 and information on opening and closing of the outlets 212a, 212b and 212c Injection information of the nozzles 311, 313, 340, and 350 may also be stored in advance in the form of a ROM.

Accordingly, when the user inputs specific injection nozzles 311, 313, 340, and 350, the controller determines the outlets 212a, 212b, and 212c to be opened and closed accordingly and determines the specific rotational position of the opening and closing member 220 accordingly have.

The control unit may drive the motor 230 to rotate the opening and closing member 220 to the determined specific rotational position and may stop the driving of the motor 230 when the opening and closing member 220 is rotated to the predetermined specific rotational position.

14, only the second outlet 212b is opened when the opening and closing member 220 is in the first rotational position P1, and therefore, only the rotating nozzles 311, Lt; / RTI >

When the opening and closing member 220 is in the second rotational position P2, only the third outlet 212c is opened, as shown in Fig. 28, so that the washing water can be distributed only to the right fixing nozzle 340 .

The third rotation position P3 and the fourth rotation position P4 of the opening and closing member 220 are not used.

Only the first outlet 212a and the third outlet 212c are opened when the opening and closing member 220 is in the fifth rotational position P5 and therefore only the left fixed nozzle 330 is opened, And the right fixed nozzle 340 can be dispensed.

When the opening and closing member 220 is in the sixth rotational position P6, only the first outlet 212a is opened, as shown in Fig. 30, so that the washing water can be distributed only to the left fixed nozzle 330 .

FIG. 32 is a view showing a bottom plate, a bottom plate cover, and a motor of the washing tub of the dishwasher of FIG. 1 in a disassembled state, FIG. 33 is a cross sectional view of the bottom plate of the dishwasher of FIG. 1, And FIG. 34 is an exploded view of a vane, a rail assembly, a spray nozzle assembly, and a bottom plate cover of the dish washer of FIG.

32 to 34, a description will be given of a bottom plate cover of a dishwasher according to an embodiment of the present invention.

The dishwasher (1) includes a bottom plate cover (600) coupled to the bottom plate (35) of the washing tub (30) at the rear side.

The bottom plate cover 600 serves to seal the motor passage holes 37 and the passage holes 38 formed in the bottom plate 35 and to support the motor 530 that drives the vanes 400 The rail assembly 430 of the dishwasher 1, and the nozzle assembly 300.

Here, as described above, the nozzle assembly 300 includes an upper rotary nozzle 311, an intermediate rotary nozzle 313, a left fixed nozzle 330, and a right fixed nozzle 340.

The rail assembly 430 guides movement of the vane 400, and a detailed configuration will be described later.

A bottom plate protrusion 36 protruded to engage the bottom plate cover 600 may be formed at the rear of the bottom plate 35. A motor passage hole 37 through which the motor 530 for driving the vane 400 passes and a passage connecting the nozzle assembly 300 and the dispensing apparatus 200 Through holes 38 may be formed.

The motor 530 is mounted on the bottom surface of the bottom plate cover 600 and the motor 530 is mounted on the bottom plate cover 600 through the motor through hole 37 when the bottom plate cover 600 is separated from the bottom plate 35 600). ≪ / RTI >

The hose connection portions 652a, 652b and 652c of the bottom plate cover 600 can pass through the flow passage holes 38 in detail.

The bottom plate cover 600 includes a shaft passage hole 640 through which the drive shaft 531 of the motor 530 passes and hoses 271a, 271b, and 271c extending from the distribution device 200, The hose connection portions 652a, 652b and 652c protruded and inserted into the flow passage holes 38 of the bottom plate projection portion 36 and the nozzle inlet portions 352a, 652b and 652c protruded upward to engage the inlets 315, 333 and 343 of the nozzle assembly 300, A coupling hole 620 for fixing the nozzle assembly 300 and the rail assembly 430 and a rotation guide 610 protruding to guide the rotation of the vane 400, .

The bottom plate cover 600 is tightly coupled to the top surface of the bottom plate projection 36. The fixed caps 680 may be coupled to the hose connectors 652a, 652b and 652c of the bottom plate cover 600 so that the bottom plate cover 600 is fixed to the bottom plate protrusion 36.

Between the bottom plate cover 600 and the bottom plate projection 36, washing water inside the washing tub 30 is counted through the motor passage holes 36 of the bottom plate projection 36 and the flow passage holes 38 A sealing member 670 may be provided so as not to come off. The sealing member 670 may be formed of a rubber material.

The bottom plate cover 600 may be provided with a motor mounting portion 630 on which a motor 530 for driving the vane 400 is mounted. The driving shaft 531 of the motor 530 may protrude into the washing tub 30 through the shaft passing hole 640 of the bottom plate cover 600. [ The drive shaft 531 of the motor 530 is coupled to a drive pulley 500 (FIG. 21) described later and can rotate together with the drive shaft 531.

The shaft passing hole 640 may be provided with a sealing member 660 so as not to wash the washing water in the washing tub 30 by the shaft passing hole 640. The sealing member 660 may be a mechanical sealing device that allows the sealing of the driving shaft 531 with smooth rotation.

The upper surface of the bottom plate cover 600 may be inclined at a predetermined angle? (FIG. 19) with respect to the reference horizontal plane (H, FIG. 19).

This is to prevent dirt from accumulating on the bottom plate cover 600 and preventing the dirt from traveling to the fixed injection nozzles 330 and 340 side. In the dishwasher 1 according to an embodiment of the present invention, the fixed injection nozzles 330 and 340 do not move unlike the rotating nozzles 311 and 313, so that the dirt can remain and stagnate. It is possible to prevent a problem from occurring.

The inclination angle? Between the upper surface of the bottom plate cover 600 and the reference horizontal plane H may be preferably about 3 ㅀ or more.

The end of the bottom plate cover 600 may be spaced apart from the bottom plate 35 by a predetermined distance S (see FIG. 19). This is because it is difficult to completely adhere the bottom plate cover 600 to the bottom plate 35 with manufacturing and assembly errors and rather it is difficult to fit the end of the bottom plate cover 600 and the fine gap formed between the bottom plate 35 It is to prevent dirt from getting caught. The distance S between the end of the bottom plate cover 600 and the bottom plate 35 may be preferably at least about 5 mm.

The bottom plate cover 600 may be coupled to the rail assembly 430 and the nozzle assembly 300. The bottom plate cover 600, the rail assembly 430, and the nozzle assembly 300 can be firmly fixed by the fastening member 690. For this, fastening holes 620, 453, and 347 may be formed at positions corresponding to the bottom plate cover 600, the nozzle assembly 300, and the rail assembly 430, respectively.

With such a structure, the rail assembly 430 and the nozzle assembly 300 can be mutually fixed and mutually aligned.

The washing water injected from the fixed injection nozzles 330 and 340 of the nozzle assembly 300 in the dishwasher 1 according to an embodiment of the present invention is supplied to the vane 400 coupled to the rail assembly 430 without directly facing the tableware So that precise alignment between the fixed injection nozzles 330 and 340 and the rail assembly 430 is required. Thus, such a coupling structure can meet such a demand.

FIG. 35 is a view showing the operation of rotating the vane of the dishwasher of FIG. 1, FIG. 38 is a view showing the operation of the vane reflecting washing water in the vane moving section of the dishwasher of FIG. 1, 39 is a view showing the operation of the vane to reflect the washing water in the non-vane moving section of the dishwasher of FIG.

35 to 39, a moving section, a non-moving section, and a rotating operation of the vane according to an embodiment of the present invention will be described.

The dishwasher 1 according to the embodiment of the present invention reflects the washing water injected from the fixed injection nozzles 330 and 340 to the dish side by the vane 400. [ Since the fixed injection nozzles 330 and 340 spray the wash water in a substantially horizontal direction, the fixed injection nozzles 330 and 340 and the vane 400 are positioned approximately horizontally with respect to each other. Therefore, the vane 400 can not move in the region where the fixed injection nozzles 330 and 340 are disposed.

That is, the dishwasher 1 has a vane moving section I1 in which the vane 400 can move and a vane non-moving section I2 in which the vane 400 can not move.

The vane 400 of the dishwasher 1 according to the embodiment of the present invention may be rotatably provided to clean the tableware housed in the vane-free section I2.

As described above, the bottom plate cover 600 is provided with a rotation guide 610 protruding to guide the movement of the vane 400, and the vane 400 is provided with a rotation engaging portion 409 Is formed. The rotation engaging portion 409 is formed on the upper side of the engaging projection 493 of the vane holder 490 which forms the rotation axis of the vane 400 and transmits the driving force to the vane 400.

The rotation guide 610 includes a guide surface 611 formed in a curved surface so that the rotation engaging portion 409 is contacted and the vane 400 is smoothly rotated.

When the vane 400 reaches the non-vane moving section I2 in the vane moving section I1, the rotation engaging section 409 of the vane 400 moves to the guide surface of the rotation guide 610 of the bottom plate cover 600, The vane 400 is rotated around the coupling protrusion 493 of the vane holder 490. [ Therefore, the washing water can be reflected toward the tableware in the non-moving section I2.

Fig. 40 is a view showing the sump of the dishwasher of Fig. 1, the course filter, and the fine filter, Fig. 41 is a view showing the sump of the dishwasher of Fig. 1, the course filter, the fine filter, 42 is a sectional view taken along a line I-I in FIG. 40, FIG. 43 is an enlarged view of a portion B in FIG. 42, FIG. 44 is a sectional view taken along a line II- Fig. 45 is an enlarged view of Fig. 44C, Fig. 46 is a plan view showing the sump of the dish washer and the course filter of Fig. 1, showing the locking operation of the course filter, 1 is a side view showing a course filter of the dishwasher shown in Fig. 1, Fig. 48 is a view showing a sump and a course filter of the dishwasher of Fig. 1, The sump of the washer, the course filter, and the micro filter And FIG, 50 is a plan view illustrating, on an enlarged scale, a part of the course filter and a micro-filter of the dishwasher of Figure 1, Figure 51 is a plan view showing a lower portion of the washing tank of the dishwasher of Figure 1;

The dishwasher 1 according to the embodiment of the present invention includes a sump 100 for storing washing water, a circulation pump 51 for circulating the washing water of the sump 100 to the injection nozzles 311, 313, 330 and 340, A drain pump 52 for discharging the washing water of the washing water to the outside of the main body 10 together with the dirt, and filters 120, 130 and 140 for filtering the dirt contained in the washing water.

A bottom plate 35 of the washing tub 30 is provided with a drain port 50 for draining the washing water to the sump 100 and the bottom plate 35 of the washing tub 30 is connected to the drain port 50 toward the drain port 50 side.

The sump 100 may have a hemispherical shape having an open top surface. The sump 100 includes a bottom portion 101, a side wall portion 103, a water storage chamber 110 formed in the bottom portion 101 and the side wall portion 103 and storing wash water, and a circulation pump 51 A circulation port 107 to be connected, and a drain port 108 to which a drain pump 52 is connected.

The filters 120, 130 and 140 are connected to a fine filter 120 mounted on the drain 50 of the bottom plate 35 and a coarse filter 140 and a micro filter 130, micro filter).

The course filter 140 may have a substantially cylindrical shape. The course filter 140 may be mounted on the inner surface of the side wall portion 103 of the sump 100. [

The course filter 140 may have a filter portion 142 for filtering a relatively large size of dirt and a handle 141 for mounting the course filter 140. The filter portion 142 of the course filter 140 may be formed on the circumferential surface of the course filter 140.

The course filter 140 is mounted on the sump 100 through the through hole 139 of the micro filter 130 and the through hole 121 of the fine filter. The upper part of the course filter 140 protrudes into the washing tub 30 and the lower part protrudes into the dirt collecting chamber 111 of the sump 100. The dust collecting chamber 111 will be described later.

The fine filter 120 may have a filter portion 121 for filtering dirt of a medium or larger size and a through hole 122 through which the course filter 140 passes. The fine filter 120 can be mounted substantially horizontally on the drain port 50 of the bottom plate 35 of the washing tub 30. [ The fine filter 120 may have an inclination such that the washing water is guided to the through hole 122 side by its own weight.

The washing water in the washing tub 30 can flow toward the course filter 140 along the inclination of the fine filter 120. However, some of the washing water and dirt may flow to the water storage chamber 110 of the sump 100 through the filter unit 121 of the fine filter 120.

The micro filter 130 includes a filter unit 131 having a flat shape and filtering a dirt having a relatively small size or more, frames 132, 133 and 135 supporting the filter unit 131, (Not shown).

The frames 132, 133, 135 include an upper frame 132, a lower frame 133, and side frames 135. The microfilter 130 is attached to the sump 100 such that the lower frame 133 is in close contact with the bottom portion 101 of the sump 100 and the side frames 135 are in close contact with the sidewall portion 103 of the sump 100. [ Respectively.

The micro filter 130 can divide the water storage chamber 110 of the sump 100 into a dust collection chamber 111 and a circulation chamber 112. A waste pump 52 is connected to the waste collection chamber 111 and a circulation pump 51 is connected to the circulation chamber 112.

Since the lower part of the course filter 140 protrudes into the dirt collecting chamber 110 as described above, the dirt contained in the washing water and the washing water passing through the course filter 140 flows into the dirt collecting chamber 110 do.

The washing water flowing into the dust collecting chamber 111 may flow through the microfilter 130 and into the circulation chamber 112. However, since the dirt contained in the washing water flowing into the dirt collecting chamber 111 can not pass through the micro filter 130, the dirt can not flow into the circulating chamber 112 but remains in the dirt collecting chamber 111 as it is.

The dust collected in the dust collecting chamber 110 may be discharged to the outside of the main body 10 together with the washing water when the drain pump 52 is operated.

The micro filter 130 prevents the dust from the dust collecting chamber 110 from flowing to the circulation chamber 112 through the gap between the micro filter 130 and the sump 100, 101 and the sidewall portion 103, respectively.

A lower sealing groove 134 may be formed in the lower frame 133 of the micro filter 130 and a side sealing projection 136 may be formed in the side frame 135. A lower sealing projection 102 inserted into the lower sealing groove 134 is formed in the bottom portion 101 of the sump 100 and a side sealing projection 136 is formed in the side wall portion 103 of the sump 100 The side sealing groove 104 may be formed.

The sealing of the microfilter 130 and the sump 100 can be strengthened by the projections and grooves of the downward and lateral directions.

On the other hand, the course filter 140 may be inserted into the sump 100 after being inserted vertically downward into the sump 100 and then rotated from the unlocking position to the locking position.

To this end, a mounting protrusion 143 is formed on the outer circumferential surface of the course filter 140. When the course filter 140 rotates from the unlocking position to the locking position on the inner side surface of the side wall portion 103 of the sump 100, A mounting groove 105 into which the mounting portion 143 is inserted in the horizontal direction can be formed.

The mounting protrusion 143 may have an upward inclined surface 144 which is upward in the direction of rotation from the unlocking position of the course filter 140 to the locking position. The mounting groove 105 may have a downwardly inclined surface 106 which is downwardly moved in the direction of rotation from the unlocking position of the course filter 140 to the locking position.

With this structure, when the course filter 140 rotates from the unlocking position to the lock position, the upward inclined surface 144 of the mounting projection 143 slides on the downward inclined surface 106 of the mounting groove 105, 140 can be moved downward.

When the course filter 140 rotates from the unlock position to the lock position, the course filter 140 can downwardly push the micro filter 130 while moving downward. For this purpose, the course filter 140 may have a downward pressing surface 145 formed horizontally to press the microfilter 130 downward. The microfilter 130 may have a lower corresponding surface 137 that is formed horizontally to be pressed by the lower pressing surface 145.

When the course filter 140 rotates from the unlocking position to the locked position, the microfilter 130 is pressed downward to move the lower frame 133 of the microfilter 130 and the bottom of the sump 100 The sealing of the microfilter 101 can be further strengthened and lifting of the microfilter 130 can be prevented.

Further, the course filter 140 may have a side pressing surface 146 formed by expanding a part of the outer circumferential surface radially outwardly so as to press the micro filter 130 laterally when rotating from the unlocking position to the lock position . That is, the course filter 140 may have an embossed shape or an elliptical shape.

The microfilter 130 may have a lateral facing surface 138 that is laterally biased by the lateral pressure surface 146.

With this configuration, when the course filter 140 rotates from the unlocking position to the locked position, the microfilter 130 is pushed laterally so that the side frames 135 of the microfilter 130 and the side walls 103 of the sump 100 ) Can be further strengthened.

On the other hand, as shown in Fig. 47, the course filter 140 can be disposed to be sideways on one side wall of the sidewalls 33 and 34 of the washing tub 30. That is, the course filter 140 may be disposed closer to the left side wall 33 than the right side wall 34. As a result of arranging the course filter 140, the course filter 140 can be easily separated without being interfered with the rail 440 when the course filter 140 is separated.

The scope of the present invention is not limited to the specific embodiments described above. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1: dishwasher 10: main body
11: door 12a, 12b: basket
30: washing tub 31: upper wall
32: rear wall 33: left wall
34: right side wall 35: bottom plate
36: bottom plate protrusion 37: motor through hole
38: flow passage hole 39: roller supporting portion
50: Drain 51: Circulation pump
52: drain pump 100: sump 101: bottom part 102: lower sealing projection
103: side wall portion 104: side sealing groove 105: mounting groove 106: downward inclined surface 107: circulation port 108: drain port
109: Dispensing device coupling portion 110: Reservoir chamber
111: Dirt collecting chamber 112: Circulating chamber
The present invention relates to a vacuum cleaner for a vacuum cleaner having a vacuum cleaner and a vacuum cleaner. And an upper surface of the lower surface of the pressing surface is pressed against the lower surface of the pressing surface.
200: dispensing device 210: housing
211: Inlets 212a, 212b, 212c: First, second and third outlets
223: sump coupling part 220: opening / closing member
221: rotating body 222: communication hole
223: latching hole 224: spacing projection
225: sealing member 226: sealing member
227: engaging projection portion 228: stopper portion
229: Camshaft coupling portion 230: Motor
231: motor drive shaft 240: cam member
241: Camshaft 242: Center of rotation
243a, 243b, 243c: convex portions 244a, 244b, 244c:
250: Microswitch 251: Contact terminal
260: support member 271a: first hose
271b: second hose 271c: third hose
300: nozzle assembly 311: upper rotary nozzle
312: injection hole 313: intermediate rotation nozzle
314: injection hole 315: rotation nozzle inlet
320: fixed nozzle assembly, 720, 740 330: left fixed nozzle
331: jet hole 332: nozzle flow path
333: nozzle inlet port 334: nozzle body
335: nozzle cover 336: decorative member
337: bottom plate cover fastening hole 340: right fixing nozzle
341: injection hole 342: nozzle flow path
343: nozzle inlet 344: nozzle body
345: nozzle cover 346: decorative member
A bottom plate cover fastening hole 400, 700, 720, a vane 401, a reflecting portion 402a, 402b, a reflecting surface 404, a cap portion 405, an engagement groove 407, an elastic hook 408, a rotation stopper portion 409, : Vertical supporting portion 412: upper supporting portion 413: side supporting portion 414: reinforcing rib
415: roller 420: driving device
430: rail assembly 440: rail
A front holder 461, a front holder 462, a front holder 462, a front holder 462, a front holder 462, a front holder 462, : Pulley support surface 463: rail support surface 464: elastic member support surface 465: front bottom holder 466: engagement projection 467: pulley bracket 468: pulley support surface 469: elastic member support surface 470: elastic member 480: belt holder 481: A coupling portion 482, a side leg 483, a lower leg 484, a coupling portion 485, a coupling hole 490, a vane holder 491, a coupling hole 492, an upper support portion 493, a coupling protrusion 494,
[0001] The present invention relates to a driving pulley,
511: rotation shaft 512: belt coupling part 520: belt 521: tooth profile 530: motor 531: drive shaft
600: bottom plate cover 610: rotation guide
611: guide surface 620: fastening hole
630: motor mounting portion 640: shaft through hole
651a: Left fixed nozzle inlet connection 651b: Rotary nozzle inlet connection
651c: right fixed nozzle inlet connection part 652a, 652b, 652c: hose connection part
660: shaft passing hole sealing member 670: bottom plate sealing member
680: fixed cap 690: fastening member
H: Reference plane of the bottom plate cover
I1: Vane shift section
I2: Vane-free section
P1, P2, P3, P4, P5, P6: rotation position of the opening and closing member
S: Spacing between bottom plate cover and bottom plate
T1, T2, T3, T4, T5, T6: Position of contact terminal
θ: Slope of bottom plate cover

Claims (20)

main body;
A washing tub provided inside the main body;
A plurality of spray nozzles for spraying wash water into the inside of the washing tub;
A plurality of vanes for moving the inside of the washing tub and reflecting the washing water sprayed from the spray nozzles to the dish side;
A rail for guiding the movement of the vane;
Wherein the dishwasher comprises: The method according to claim 1,
Wherein the plurality of vanes are connected to the belt by the driving pulley and the idle pulley and are moved together. 3. The method of claim 2,
Wherein the plurality of vanes are moved by the water pressure of the washing water sprayed from the spray nozzle. The method according to claim 1,
Further comprising a driving device for driving the plurality of vanes. 5. The method of claim 4,
The driving device includes:
A motor for generating a driving force; and a belt connected to the driving pulley and the idler pulley so as to transmit the driving force of the motor to the vane. The method according to claim 1,
Wherein the rails are provided in the same number as the number of the plurality of vanes, and are independently coupled to the vanes. 6. The method of claim 5,
Wherein the driving device is provided in the same number as the number of the plurality of vanes, and drives the vane independently of each other. The method according to claim 1,
Wherein the plurality of vanes divides and cleans the interior of the washing tub. The method according to claim 1,
Wherein at least one of the plurality of injection nozzles is a fixed nozzle fixed to an inner wall of the washing tub, and at least one of the plurality of nozzles is a rotary nozzle for spraying washing water while rotating inside the washing tub. 6. The method of claim 5,
The driving device includes a rear holder rotatably supporting the driving pulley and coupled to one end of the rail by the tension of the belt, and an idle pulley rotatably supporting the idle pulley, And a front holder coupled to the other end of the dishwasher. main body;
A washing tub provided inside the main body;
At least one rotating nozzle rotating to spray washing water into the washing tub;
A fixing nozzle located on an inner wall of the washing tub and spraying wash water;
At least one vane for reflecting the washing water sprayed from the fixed nozzle to the table side;
Wherein the dishwasher comprises: 12. The method of claim 11,
Wherein the first region in which the vane moves and the second region in which the washing water is sprayed from the rotating nozzle are independently cleaned. 13. The method of claim 12,
Wherein the first area and the second area correspond to different areas. 13. The method of claim 12,
Wherein at least a portion of the first region and the second region overlap. 12. The method of claim 11,
Wherein a plurality of vanes are provided and connected by a belt by a driving pulley and an idle pulley so as to be movable in conjunction with the inside of the washing tub. 16. The method of claim 15,
Wherein one of the plurality of vanes moves in the first direction by the water pressure of the washing water sprayed from the fixed nozzle and the other moves in the second direction. 12. The method of claim 11,
Wherein a plurality of the vanes are provided, and the inside of the washing tub is independently movable. 18. The method of claim 17,
Further comprising a drive device for driving the plurality of vanes,
The driving device includes:
A motor for generating a driving force, a belt connected to the driving pulley and the idle pulley for transmitting the driving force of the motor to the vane, and a rail for guiding movement of the vane. 19. The method of claim 18,
Wherein the driving device is provided in the same number as the number of the plurality of vanes, and drives the vane independently of each other. 12. The method of claim 11,
A plurality of rotary nozzles are provided,
A first region to be cleaned by said vane, and a second region and a third region to be cleaned by said rotating nozzle.

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