CN110664344A

CN110664344A - Dish washing machine

Info

Publication number: CN110664344A
Application number: CN201910833623.XA
Authority: CN
Inventors: 张永奎; 杨林; 徐伟; 郝素; 吴奕乐
Original assignee: Qingdao Haier Dishwasher Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Dishwasher Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-01-10

Abstract

The invention discloses a dish washing machine, which comprises a motor, a dish washing machine and a dish washing machine, wherein the motor is provided with a motor shell and a rotating shaft which is coaxially arranged with the motor shell; a washing pump having a washing impeller fixed to the rotation shaft; the heating plate is sleeved on the outer side of the motor shell and is fixed with the inner container of the dish-washing machine; the filter screen assembly is covered above the heating plate, a heating cavity is formed between the filter screen assembly and the heating plate, and a filter screen area is arranged at the position, close to the outer edge of the filter screen assembly, of the filter screen assembly. According to the dish washer, the heating plate is arranged around the washing pump for one circle, so that the heating efficiency is improved, and the annular heating plate can uniformly heat the washing water in the heating cavity; the filter screen district of filter screen subassembly sets up in its outer edge, and the heating plate is inwards flowed through from the heating plate periphery to the washing water that filters through the filter screen district, can increase the area of contact of washing water and heating plate, improves the heating efficiency of heating plate, simultaneously because filter screen subassembly part sets up the filter screen district, can reduce the washing water flow and the velocity of flow that get into in the heating chamber, further improves heating efficiency.

Description

Dish washing machine

Technical Field

The invention relates to the technical field of washing equipment, in particular to a dish washing machine.

Background

The existing dish washer usually adopts a circulating pump integrated with a heater to heat the washing water so as to improve the cleaning and decontamination effects, or the heater is arranged at the bottom of the inner container to heat the washing water. When the number of sets of tableware is large, the power requirement on the heater is increased, and the pump shell of the circulating pump has to be enlarged for achieving the heating purpose due to the influence of the size of the heating pipe of the heater, so that the space occupation of the circulating pump is increased; the heater is arranged at the water inlet of the circulating pump, the heating efficiency is not high, and the washing effect is influenced.

Disclosure of Invention

Based on the technical problem, the invention aims to provide the dish washing machine with high heating efficiency and good washing effect.

In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:

a dishwasher, comprising:

the motor is provided with a motor shell and a rotating shaft which is coaxially arranged with the motor shell;

a washing pump having a washing impeller fixed to the rotation shaft;

the heating plate is sleeved on the outer side of the motor shell and fixed with the inner container of the dish-washing machine;

the filter screen assembly is arranged above the heating plates in a covering mode, a heating cavity is formed between the heating plates, and a filter screen area is arranged at the position, close to the outer edge of the filter screen assembly, of the filter screen assembly.

Further, the filter screen assembly comprises an annular isolation plate and a filter screen arranged in a filter screen area, the isolation plate comprises a body part arranged above the heating plate, an outer extension part extending outwards along the outer periphery of the body part, and an inner extension part extending inwards along the inner periphery of the body part, and the heating cavity is formed between the outer extension part and the bottom surface of the inner container of the dishwasher, between the body part and the heating plate, and between the inner extension part and the motor shell; the filter screen area is arranged on the outer extension part.

Furthermore, the filter screen area is annular and is arranged around the outer extension part in a circle.

Further, the main body of the isolation plate is arranged from inside to outside in an inclined manner, and the outer extension part extends outwards along the outer side of the main body horizontally.

Furthermore, an assembly hole is formed in the bottom of the inner container, and the heating plate is fixed on the assembly hole; and a plurality of support ribs are arranged on the inner container at intervals in the circumferential direction of the assembling hole and used for supporting the isolation plate.

The drainage pump is provided with a drainage cavity and a drainage impeller which is arranged in the drainage cavity and fixed at the lower end of the rotating shaft; the bottom of the inner container is provided with a water outlet communicated with the water drainage cavity, and the heating cavity is communicated with the water outlet.

Furthermore, a groove is formed in the bottom surface of the inner container below the outer extending portion, the groove is circumferentially formed along the outer extending portion, and the bottom surface of the groove is inclined downwards towards one side close to the water outlet.

Furthermore, a through hole is formed in the isolation plate on the upper side of the water outlet, a filter is arranged at the through hole, and the filter is communicated with the heating cavity and the water drainage cavity.

Further, the filter includes a micro filter having an open upper portion, and a coarse filter passing through the open upper portion of the micro filter, the micro filter communicating with the heating chamber and the drain chamber of the drain pump.

Further, the partition plate further includes a projection extending outward along an edge portion of the outer extension, and the filter is provided on the outer extension and the projection.

Compared with the prior art, the invention has the advantages and positive effects that:

according to the dish washer, the heating plate is arranged around the washing pump for one circle, so that the heating efficiency is improved, the washing pump is arranged in the middle, and when water enters the washing pump from the periphery, the annular heating plate can uniformly heat the washing water in the heating cavity, so that the washing effect is improved; the filter screen district of filter screen subassembly sets up in its outer edge, and the heating plate is inwards flowed through from the heating plate periphery to the washing water that filters through the filter screen district, can increase the area of contact of washing water and heating plate, improves the heating efficiency of heating plate, simultaneously because filter screen subassembly part sets up the filter screen district, can reduce the washing water flow and the velocity of flow that get into in the heating chamber, further improves heating efficiency, promotes the washing effect.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of the bottom assembly of the inner container of the dishwasher of the present invention, shown in a top view;

FIG. 2 is a schematic view of the bottom of the inner container of the dishwasher of the present invention, shown in a bottom view;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a partial cross-sectional view of FIG. 1, showing the inner bladder not shown;

FIG. 5 is a front sectional view of the bottom assembly of the inner tub of the dishwasher of the present invention;

FIG. 6 is an enlarged view of FIG. 5;

FIG. 7 is a schematic view of the bottom structure of the inner container of the dishwasher of the present invention;

FIG. 8 is a schematic view of a filter screen assembly in the dishwasher of the present invention;

FIG. 9 is a front view of a screen assembly in the dishwasher of the present invention;

FIG. 10 is a bottom view of a heating plate in the dishwasher of the present invention;

FIG. 11 is a cross-sectional view taken along line A-A of FIG. 10;

FIG. 12 is a schematic view showing the structure of a mounting tray in the dishwasher of the present invention;

description of reference numerals:

an inner container 100; a fitting hole 110; support ribs 120; a drain opening 130; a recess 140; an accommodation groove 150; a pawl slot 160; a fixing claw 170;

a motor case 200;

a spray arm 300;

washing the impeller 400;

a drain volute 510; a drain chamber 511; a drain inlet pipe 520; a drain outlet pipe 530;

a heating plate 600; heating the body 610; an inner bend 620; the outer bent portion 630; a heating part 640;

a screen assembly 700; a partition plate 710; a body portion 711; an outer extension 712; an inner extension 713; a projection 714; a through-hole 715;

a filter 800; a fine filter 810; a coarse filter 820;

assembling the fixing ring 910;

an assembly bracket 920; an outer barrier rib 921; a washer 930 is fixed.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 12, there is shown an embodiment of a dishwasher of the present invention. The dishwasher includes an inner container 100, the inner container 100 has a washing chamber, the bottom of the inner container 100 is preferably a groove structure, and a central position is provided with an assembly hole 110. The dishwasher further includes a motor, a washing pump, a drain pump, a heating pan 600, and a filter screen assembly 700. The motor has a motor case 200, and a rotation shaft (not shown) coaxially disposed with the motor case 200. The upper and lower ends of the rotating shaft extend out of the motor case 200. The upper part of the motor is provided with a spray arm 300. The washing pump includes a washing impeller 400, and the washing impeller 400 is fixed to the upper end of the rotating shaft. As shown in fig. 12, the drain pump includes a drain volute 510 and a drain impeller, a drain cavity 511 is disposed between the bottom of the motor casing 200 and the drain volute 510, a drain inlet pipe 520 and a drain outlet pipe 530 are disposed on the drain volute 510 and are communicated with the drain cavity 511, and the drain inlet pipe 520 is communicated with the dishwasher liner 100 and is used for guiding the washing water in the dishwasher liner 100 to the drain cavity 511. The water discharge impeller extends into the water discharge cavity 511 and is fixedly connected to the lower end of the rotating shaft. When the motor drives the rotating shaft to rotate forwards, the washing impeller 400 rotates forwards, the spraying arm 300 operates, the drainage impeller rotates forwards, and the drainage water outlet pipe 530 is cut off; when the motor drives the motor shaft to rotate reversely, the washing impeller 400 rotates reversely, the spray arm 300 stops operating, the drainage impeller rotates reversely, and the drainage outlet pipe 530 opens for drainage.

As shown in fig. 3 to 5, the heating plate 600 is annular, is sleeved on the outer side of the motor casing 200, and is fixed on the assembly hole 110 of the inner container 100. The filter screen assembly 700 is placed over the heating plate 600 and forms a heating chamber with the heating plate 600. The direction of the exterior of the inner container 100 is defined as the outer direction. The filter screen component is provided with a filter screen area a near the outer edge. The washing water filtered by the filter screen assembly 700 enters the heating chamber, is heated by the heating plate 600, and is sprayed into the inner container 100 through the washing pump and the spray arm 300 to be cleaned.

In the dishwasher, the heating plate 600 is arranged around the washing pump for one circle, so that the heating efficiency is improved, and the washing pump is arranged in the middle, so that when the washing pump feeds water from the periphery, the annular heating plate 600 can uniformly heat the washing water in the heating cavity, so that the washing effect is improved; the filter screen district a of filter screen subassembly 700 sets up in its outer edge, and the heating plate 600 is inwards flowed through from heating plate 600 periphery to the filterable washing water in filter screen district a, can increase the area of contact of washing water with heating plate 600, improves heating plate 600's heating efficiency, simultaneously because filter screen subassembly 700 part sets up the filter screen district, can reduce the washing water flow and the velocity of flow that get into in the heating chamber, further improves heating efficiency, promotes the washing effect. The dishwasher does not need to increase the volume of the pump, and reduces the volume of the dishwasher.

Specifically, as shown in fig. 8 and 9, the filter screen assembly 700 includes an annular partition plate 710 and a filter screen (not shown) provided in a filter screen area a. The partition plate 710 includes a body 711 provided above the heating plate 600, an outer extension 712 extending outward along the outer periphery of the body 711, and an inner extension 713 extending inward along the inner periphery of the body 711. The inner extension portion 713 is sleeved between the motor housing 200 and the spray arm 300 for fixing the filter screen assembly 700, in this embodiment, a fixing gasket 930 is disposed between the spray arm 300 and the inner extension portion 713, and the fixing gasket 930 presses and fixes the filter screen assembly 700 on the inner container 100. Heating chambers are formed between the external extension part 712 and the bottom surface of the inner container 100, between the body part 711 and the heating plate 600, and between the internal extension part 713 and the motor case 200. Above the screen assembly 700 is a washing chamber. Wherein, the filter screen is disposed on the outer extension portion 712. The washing water of the inner container 100 is filtered by the planar filter screen, enters the heating cavity, is heated by the heating plate 600 and then is sprayed into the inner container 100 by the washing pump and the spray arm 300 to carry out the washing operation. In this embodiment, the filter screen is disposed on the external extension part 712, i.e., disposed on the outer side of the heating plate 600, not directly opposite to the heating plate 600, and the washing water filtered by the filter screen flows inwards from the outer side area of the heating plate 600, so that the contact area between the washing water and the heating plate 600 during the flowing process can be further increased, the heating efficiency of the heating plate 600 is improved, and the washing effect is further improved.

The screen area and the screen are preferably annular and are disposed around the outer extension 712 to improve the filtering efficiency. In other embodiments, the filter screen may have other shapes or be composed of multiple sections of filter screen.

Referring to fig. 10 and 11, the heating plate 600 is fitted over the outer side of the motor case 200, the outer diameter side of the heating plate 600 is fitted into the fitting hole 110 of the inner container 100, and the heating plate 600 is sealed and fixed to the fitting hole 110. The heating plate 600 has a ring-shaped heating body 610, and the heating body 610 is provided with an inner high and an outer low.

Washing water flows through from heating body 610, overlaps the outside at motor casing 200 through setting up heating plate 600 cover for heating plate 600 is favorable to the simplification of structure as a part in washing water route, and has avoided setting up in the water route and has leaded to blockking to rivers. In the washing process of the dishwasher, the motor is started, so that the rotating shaft drives the washing impeller 400 to rotate, and further washing water in the washing pump cavity is pumped into the washing cavity by the washing impeller 400, and the washing water entering the washing pump cavity must flow through the upper surface of the heating body 610 because the heating plate 600 is annularly sleeved on the outer side of the motor shell 200, so that the washing water reaching the washing pump cavity in a heating state is heated, and the heating efficiency is improved; the heating body 610 is arranged to be high inside and low outside, and when the washing water flows inwards along the radial direction from the outer side of the heating body 610, the washing water needs to climb upwards, so that the difficulty of washing water backflow is increased, the speed of the water flow flowing through the heating body 610 is reduced, the time of the flowing water flowing through the heating body 610 is increased, and the heating efficiency of the heating plate 600 on the washing water is improved.

With regard to the structure of the heating plate 600, as shown in fig. 11, the heating plate 600 has an obliquely arranged heating body 610, an inward bent portion 620 bent downward and inward and extending along the inner side of the heating body 610, and an outward bent portion 630 bent downward and outward and extending along the outer side of the heating body 610, wherein the inward bent portion 620, the heating body 610, and the outward bent portion 630 surround to form a cavity, and the heating element 640 is located in the cavity; by forming the cavity, an arrangement space of the heating part 640 is formed; for example, in the case of water seepage at the junction of the inside or outside of the heating plate 600, the leaked water drops do not flow upward into the cavity along the inward bent portion 620 or the outward bent portion 630, which is advantageous for protecting the safety of the heating element 640. Preferably, the heating plate 600 is made of metal, and the heating element 640 is a heating film attached to the lower end surface of the heating body 610, so that heat transfer is facilitated.

As for the inclination angle of the heating body 610 in the radial direction, the inclination of the heating body 610 is too large, so that the climbing speed of the water current flowing through the heater is too slow, and the washing efficiency is lowered; however, the heating body 610 cannot improve the heating efficiency even if the inclination angle is too small; preferably, the included angle between the heating body 610 and the horizontal plane is 3-8 degrees, more preferably, the included angle between the heating body 61031 and the horizontal plane is 5-6 degrees.

The heating plate 600 is fixed to the motor case 200 by a fitting fixing ring 910. The assembly fixing ring 910 is fixed to the motor case 200 by a rotational snap.

The heating plate 600 is fixed to the inner tub 100 by a mounting bracket 920. Mounting bracket 920 is fastened to inner tub 100 at mounting hole 110 from bottom to top by rotation, and fixes heating plate 600, a motor, a washing pump, and the like to the bottom of inner tub 100. Specifically, a plurality of fixing claws 170 extending downward are provided on the bottom wall at the fitting hole 110, as shown in fig. 12, a plurality of outer retaining ribs 921 extending outward are provided on the fitting bracket 920, and the outer retaining ribs 921 are engaged with the fixing claws 170 in a matching manner. The fixing claws 170 have support portions extending downward and claw portions extending by being bent inward along the lower ends of the support portions, and the outer ribs 921 are located above the claw portions. The heating plate 600 is held by the fitting bracket 920, moved upward, and by rotating the fitting bracket 920, the outer stopper 921 is caught above the fixing claw 170. The plurality of fixing claws 170 and the outer stopper rib 921 are circumferentially arranged. The mounting bracket 920 is fixed at the mounting hole 110 by a rotational snap.

In another embodiment, a heating component can be additionally arranged in the washing pump, so that the washing effect is further improved.

In this embodiment, as shown in fig. 9, the main body 711 of the isolation plate 710 is disposed obliquely downward from inside to outside, the outer extension 712 extends horizontally outward along the outside of the main body 711, the inner extension 713 extends horizontally inward along the inside of the main body 711, i.e. the isolation plate 710 has a shape of a pot cover with a high inside and a high outside, the oblique surface of the isolation plate 710 can increase the flow rate of the washing water, so that when the washing water can be washed onto a planar filter screen, the residues on the filter screen can be easily washed away, and the residues are prevented from accumulating on the filter screen and blocking the water flow, meanwhile, the oblique surface of the main body of the isolation plate 710 is adapted to the inner-high outside low-oblique arrangement structure of the heating plate 600, the angle between the main body of the isolation plate 710 and the horizontal plane is 3 ° ~ °, and more preferably, the angle between the main body.

In order to improve the strength of the filter screen assembly 700 and prevent the deformation of the partition plate 710, as shown in fig. 7, a plurality of support ribs 120 are circumferentially arranged on the inner container 100 around the assembly hole 110 at intervals, the support ribs 120 can support the partition plate 710, and the support ribs 120 also play a role in enhancing the strength of the assembly hole 110 of the inner container 100. The support ribs 120 are spaced apart from each other, and can form a filter grid. In the present embodiment, the support rib 120 is supported at the inner edge position of the outer extension 712.

In this embodiment, the bottom of the inner container 100 is opened with a water outlet 130, and the drain inlet pipe 520 of the drain pump is communicated with the water outlet 130. The heating chamber is in communication with a drain 130. During draining, the washing water entering the heating chamber can be guided to the drainage chamber 511 of the drainage pump through the drainage port 130.

The washing water filtered by the filter screen assembly 700 also has a residual fine residue flowing into the heating chamber and depositing in the heating chamber. In order to collect and remove the fine residue in the heating cavity, a groove 140 is disposed on the bottom surface of the inner container 100 below the outer extension portion 712, as shown in fig. 7, the groove 140 is circumferentially disposed along the outer extension portion 712, the groove 140 can collect the residue sediment, and the bottom surface of the groove 140 is inclined downward toward the side close to the drain opening 130, that is, the depth of the groove 140 is gradually increased toward the position close to the drain opening 130, so that the fine residue can flow along the inclined groove 140 to the drain opening 130 for draining. And the groove 140 is wider as it gets closer to the drain opening 130, thereby facilitating the discharge of fine residue. For convenience of manufacture, in the present embodiment, two arc-shaped grooves 140 are provided, symmetrically arranged with respect to the drain opening 130, to form a double C-shaped structure.

As shown in fig. 8 and 4, a through hole 715 is formed in the partition plate 710 on the upper side of the drain port 130, a filter 800 is disposed at the through hole 715, and the filter 800 communicates with the heating chamber and the drain chamber 511 of the drain pump. In washing, the washing water may be simultaneously introduced into the heating chamber from the filter 800 and the filter screen assembly 700. In the draining operation, a portion of the washing water is filtered by the filter 800 and then introduced into the drain pump, and a portion of the washing water is filtered by the filter screen assembly 700 and then introduced into the heating chamber and then introduced into the drain pump.

Specifically, as shown in fig. 3, filter 800 includes fine filter 810 and coarse filter 820, micro filter 800 has an open upper portion, coarse filter 820 passes through the open upper portion of micro filter 800, i.e., coarse filter 820 is fitted into micro filter 800, and the lower portion of micro filter 800 communicates with drain port 130. The coarse filter 820 is used to filter out large-sized residues, and the micro filter 800 is used to filter out small-sized residues. Preferably, the coarse filter 820 is detachably mounted on the open top of the micro filter 800. The filter 800 is detachably mounted on the inner container 100.

The coarse filter 820 is preferably in the shape of a cylinder having a grating through which large-sized residues are filtered. In other embodiments, coarse filter 820 may also include a coarse filter mesh and a frame for maintaining the cylindrical shape of the coarse filter mesh. The micro filter 800 includes a filtering membrane and a frame for maintaining a cylindrical shape of the filtering membrane.

The filter screen area of the filter 800 assembly can largely bypass the filter, and the problems that only the coarse filter 820 and the fine filter 800 are arranged, the filtering speed is low, and the filter is easy to block can be solved.

In this embodiment, referring to fig. 7 and 4, the bottom of the inner container 100 is provided with a receiving groove 150 protruding downward, the filter 800 is disposed in the receiving groove 150, and the drain 130 is disposed on the sidewall of the receiving groove 150.

Preferably, the filter 800 is fixed to the receiving groove 150 in a snap-fit manner. Specifically, the bottom of the receiving groove 150 is provided with a jaw groove 160, the bottom of the filter 800 is provided with a jaw, and the filter 800 is locked into the jaw groove 160 by the rotation of the jaw and fixed.

In this embodiment, the isolation plate 710 of the filter screen assembly 700 further includes a protrusion 714 extending outward along an edge portion of the outer extension 712, as shown in fig. 8, and a through hole 715 is formed on the outer extension 712 and the protrusion 714. The outer edge part is outwards convex towards the transition of outer circular arc and forms convex bulge 714, so can set up the through-hole 715 of major diameter, installs filter 800 of great size, improves the filter effect, can collect more residues, reduces filter 800 and dismantles the number of times of clearing up the residue. As shown in fig. 1, the filter 800 is preferably disposed at a rear position of the inner container 100, when the filter 800 is mounted and dismounted, a user does not need to force his body to move forward into the dishwasher, so that the mounting and dismounting operations of the filter 800 are facilitated, and the user can conveniently observe whether the filter 800 is full of residues and dismount and clean the filter 800 in time during the use process.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A dishwasher, comprising:

a washing pump having a washing impeller fixed to the rotation shaft;

2. The dishwasher of claim 1, wherein the filter screen assembly comprises an annular baffle plate and a filter screen disposed in a filter screen area, the baffle plate comprises a body portion disposed above the heater plate, an outer extension portion extending outwardly along an outer periphery of the body portion, an inner extension portion extending inwardly along an inner periphery of the body portion, and the heating cavity is formed between the outer extension portion and a bottom surface of a dishwasher inner container, between the body portion and the heater plate, and between the inner extension portion and a motor housing; the filter screen area is arranged on the outer extension part.

3. The dishwasher of claim 2, wherein the screen region is annular and is disposed around the outer extension.

4. The dishwasher of claim 2, wherein the body portion of the partition is disposed obliquely downward from inside to outside, and the outer extension extends horizontally outward along an outside of the body portion.

5. The dishwasher of claim 4, wherein the bottom of the inner container is provided with a mounting hole, and the heating plate is fixed on the mounting hole; and a plurality of support ribs are arranged on the inner container at intervals in the circumferential direction of the assembling hole and used for supporting the isolation plate.

6. The dishwasher of claim 5, further comprising a drain pump having a drain chamber, a drain impeller disposed in the drain chamber and fixed to a lower end of the rotation shaft; the bottom of the inner container is provided with a water outlet communicated with the water drainage cavity, and the heating cavity is communicated with the water outlet.

7. The dishwasher of claim 6, wherein a groove is provided on a bottom surface of the inner tub below the outer extension, the groove is circumferentially provided along the outer extension, and a bottom surface of the groove is inclined downward toward a side close to the drain opening.

8. The dishwasher of claim 6, wherein the partition plate on the upper side of the drain opening is provided with a through hole, and a filter is arranged at the through hole and communicated with the heating cavity and the drain cavity.

9. The dishwasher of claim 8, wherein the filter comprises a micro filter having an open upper portion and a coarse filter passing through the open upper portion of the micro filter, the micro filter communicating with the heating chamber and the drain chamber of the drain pump.

10. The dishwasher of claim 8, wherein the separator plate further comprises a tab extending outwardly along an edge portion of the outer extension, the filter being disposed on the outer extension and tab.