CN110664344A - Dish washing machine - Google Patents

Abstract

The invention discloses a dishwasher, comprising a motor with a motor casing and a rotating shaft coaxially arranged with the motor casing; a washing pump with a washing impeller fixed with the rotating shaft; a heating plate sleeved on the motor casing The outer side of the filter is fixed with the inner tank of the dishwasher; the filter screen assembly is covered above the heating plate, and a heating cavity is formed between the heating plate and the filter screen assembly. In the above dishwasher, the heating plate is arranged around the washing pump, which improves the heating efficiency, and the annular heating plate can evenly heat the washing water in the heating cavity; The filtered washing water flows inward from the outer circumference of the heating plate through the heating plate, which can increase the contact area between the washing water and the heating plate, and improve the heating efficiency of the heating plate. The washing water flow rate and flow rate inside, further improve the heating efficiency.

Description

dishwasher

technical field

The present invention relates to the technical field of washing equipment, in particular to a dishwasher.

Background technique

Existing dishwashers usually use a circulating pump integrated with a heater to heat the washing water to improve the cleaning and decontamination effect, or set a heater at the bottom of the inner tank to heat the washing water. When the number of cutlery sets is large, the power requirement of the heater becomes larger. Due to the influence of the size of the heating pipe of the heater, the integrated circulating pump has to increase the pump casing of the circulating pump in order to achieve the heating purpose, thereby increasing the circulating pump The space is occupied by the heater; the heater is set at the water inlet of the circulating pump, and its heating efficiency is not high, which affects the washing effect.

SUMMARY OF THE INVENTION

Based on this, the technical problem to be solved by the present invention is to provide a dishwasher with high heating efficiency and good washing effect.

In order to realize the above-mentioned purpose of the invention, the present invention adopts the following technical scheme to realize:

A dishwasher comprising:

a motor, which has a motor housing and a rotating shaft coaxially arranged with the motor housing;

a washing pump, which has a washing impeller fixed to the rotating shaft;

a heating plate, sleeved on the outer side of the motor shell, and fixed with the inner tank of the dishwasher;

The filter screen assembly is covered above the heating plate, and a heating cavity is formed between the filter screen assembly and the heating plate, and a filter screen area is provided near the outer edge of the filter screen assembly.

Further, the filter screen assembly includes a ring-shaped isolation plate and a filter screen arranged in the filter screen area, and the isolation plate includes a body portion disposed above the heating plate, and an outer portion extending outward along the outer circumference of the body portion. an extension part, an inner extension part extending inward along the inner circumference of the main body part, between the outer extension part and the bottom surface of the dishwasher inner tank, between the main body part and the heating plate, the inner extension part and the motor The heating cavity is formed between the shells; the screen area is arranged on the outer extension part.

Further, the filter screen area is annular, and is arranged around the outer extension portion.

Further, the body portion of the isolation plate is inclined downward from the inside to the outside, and the outer extension portion extends horizontally and outward along the outside of the body portion.

Further, an assembly hole is provided at the bottom of the inner pot, and the heating plate is fixed on the assembly hole; a plurality of support ribs are arranged circumferentially spaced around the assembly hole on the inner pot to support the isolation plate .

Further, it also includes a drainage pump, the drainage pump has a drainage cavity, a drainage impeller arranged in the drainage cavity and fixed on the lower end of the rotating shaft; the bottom of the inner tank is provided with a drainage port communicating with the drainage cavity, so The heating chamber communicates with the water outlet.

Further, a groove is provided on the bottom surface of the inner pot below the outer extension portion, the groove is arranged along the circumferential direction of the outer extension portion, and the bottom surface of the groove is close to the side of the water outlet. Tilt down setting.

Further, a through hole is formed on the isolation plate on the upper side of the drain outlet, and a filter is arranged at the through hole, and the filter communicates with the heating cavity and the drainage cavity.

Further, the filter includes a micro filter and a coarse filter, the micro filter has an open upper portion, the coarse filter passes through the open upper portion of the micro filter, the micro filter is connected to the heating chamber and the drain The drain chamber of the pump communicates.

Further, the isolation plate further includes a protruding portion extending outward along an edge portion of the outer extending portion, and the filter is disposed on the outer extending portion and the protruding portion.

Compared with the prior art, the advantages and positive effects of the present invention are:

In the above dishwasher, the heating plate is arranged around the washing pump, which improves the heating efficiency, and the washing pump is arranged in the middle. When the washing pump feeds water from all sides, the annular heating plate can evenly heat the washing water in the heating chamber, improving the washing efficiency. Effect: The filter screen area of the filter screen assembly is set at its outer edge, and the washing water filtered by the filter screen area flows through the heating disk from the outer circumference of the heating disk inward, which can increase the contact area between the washing water and the heating disk and improve the heating disk. At the same time, the filter screen area is set in the filter screen component part, which can reduce the flow rate and flow rate of the washing water entering the heating chamber, further improve the heating efficiency and improve the washing effect.

Other features and advantages of the present invention will become more apparent after reading the detailed description of the present invention in conjunction with the accompanying drawings.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the structural representation of the bottom assembly of the inner pot of the dishwasher of the present invention, and the illustration is a top view;

Fig. 2 is the structural representation of the bottom of the inner pot of the dishwasher of the present invention, and the illustration is a bottom view;

Fig. 3 is the exploded view of Fig. 1;

Fig. 4 is the partial cross-sectional view of Fig. 1, the inner pot is not shown in the illustration;

Fig. 5 is the front sectional view of the bottom assembly of the inner pot of the dishwasher of the present invention;

Fig. 6 is the enlarged view of Fig. 5;

7 is a schematic diagram of the bottom structure of the inner tank of the dishwasher of the present invention;

8 is a schematic structural diagram of a filter screen assembly in the dishwasher of the present invention;

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

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

Fig. 11 is A-A sectional view in Fig. 10;

Figure 12 is a schematic structural diagram of an assembling bracket in the dishwasher of the present invention;

Description of reference numbers:

Inner tank 100; assembling hole 110; supporting rib 120; water outlet 130; groove 140; accommodating groove 150; claw groove 160; fixing claw 170;

motor housing 200;

spray arm 300;

Washing impeller 400;

Drainage volute 510; Drainage cavity 511; Drainage inlet pipe 520; Drainage outlet pipe 530;

Heating plate 600; heating body 610; inner bending part 620; outer bending part 630; heating part 640;

filter screen assembly 700; isolation plate 710; body part 711; outer extension part 712; inner extension part 713; protruding part 714; through hole 715;

Filter 800; Fine filter 810; Coarse filter 820;

Assemble the fixing ring 910;

Assembly bracket 920 ; outer retaining rib 921 ; fixing washer 930 .

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

It should be noted that, in the description of the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positions The terminology of the relationship is based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as Limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

1-12, it is an embodiment of the dishwasher of the present invention. The dishwasher includes an inner container 100, the inner container 100 has a washing cavity, the bottom of the inner container 100 is preferably a groove structure, and an assembly hole 110 is provided in the center position. The dishwasher also includes a motor, a washing pump, a drain pump, a heating plate 600 and a filter screen assembly 700 . The motor has a motor housing 200 and a rotating shaft (not shown) coaxially disposed with the motor housing 200 . The upper and lower ends of the rotating shaft protrude out of the motor housing 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 on the upper end of the rotating shaft. As shown in FIG. 12 , the drainage pump includes a drainage volute 510 and a drainage impeller. A drainage cavity 511 is provided between the bottom of the motor housing 200 and the drainage volute 510 , and a drainage inlet pipe 520 communicated with the drainage cavity 511 is arranged on the drainage volute 510 . and the drainage outlet pipe 530 , the drainage inlet pipe 520 is communicated with the dishwasher inner tank 100 , and is used for guiding the washing water in the dishwasher inner tank 100 to the drainage cavity 511 . The drainage impeller extends into the drainage cavity 511 and is connected and fixed on the lower end of the rotating shaft. When the motor drives the rotating shaft to rotate forward, the washing impeller 400 rotates forward, the spray arm 300 operates, the drainage impeller rotates forward, and the drainage outlet pipe 530 is closed; when the motor drives the motor shaft to rotate reversely, the washing impeller 400 rotates reversely, and the spray arm 300 When the operation is stopped, the drainage impeller is reversed, and the drainage outlet pipe 530 is opened for drainage.

As shown in FIGS. 3-5 , the heating plate 600 is annular, is sleeved on the outer side of the motor casing 200 , and is fixed on the assembling hole 110 of the inner pot 100 . The filter screen assembly 700 is covered above the heating plate 600 and forms a heating cavity with the heating plate 600 . The outer direction of the inner bladder 100 is defined as the outer direction. A filter screen area a is provided near the outer edge of the filter screen assembly. 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 tank 100 through the washing pump and the spray arm 300 for cleaning operation.

In the above-mentioned dishwasher, the heating plate 600 is arranged around the washing pump to improve the heating efficiency, and the washing pump is arranged in the middle. When the washing pump feeds water from the surrounding, the annular heating plate 600 can evenly heat the washing water in the heating chamber. , to improve the washing effect; the filter screen area a of the filter screen assembly 700 is set at its outer edge, and the washing water filtered by the filter screen area a flows from the outer circumference of the heating plate 600 inward through the heating plate 600, which can increase the washing water and heating The contact area of the plate 600 improves the heating efficiency of the heating plate 600. At the same time, because the filter screen assembly 700 is partially provided with a filter screen area, the flow and flow rate of the washing water entering the heating chamber can be reduced, further improving the heating efficiency and improving the washing effect. The above-mentioned dishwasher does not need to increase the volume of the pump, thereby reducing the volume of the dishwasher.

Specifically, as shown in FIG. 8 and FIG. 9 , the filter screen assembly 700 includes a ring-shaped isolation plate 710 and a filter screen (not shown) provided in the filter screen area a. The isolation plate 710 includes a body portion 711 disposed above the heating plate 600 , an outer extension portion 712 extending outward along the outer circumference of the body portion 711 , and an inner extension portion 713 extending inward along the inner circumference of the body portion 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 provided between the spray arm 300 and the inner extension portion 713 . The fixing gasket 930 presses and fixes the filter mesh assembly 700 on the inner container 100 . A heating cavity is formed between the outer extension portion 712 and the bottom surface of the inner pot 100 , between the body portion 711 and the heating plate 600 , and between the inner extension portion 713 and the motor housing 200 . Above the filter screen assembly 700 is a washing chamber. Wherein, the filter screen is arranged on the outer extension portion 712 . The washing water in the inner tank 100 is filtered by the flat filter screen, enters the heating chamber, and is heated by the heating plate 600 and is sprayed into the inner tank 100 by the washing pump and the spray arm 300 for washing operation. In this embodiment, the filter screen is arranged on the outer extension part 712, that is, it is arranged on the outer side of the heating plate 600 and is not directly opposite to the heating plate 600. The washing water filtered by the filter screen flows inward from the outer area of the heating plate 600, The contact area with the heating plate 600 during the flow of the washing water can be further increased, the heating efficiency of the heating plate 600 can be improved, and the washing effect can be further improved.

The filter screen area and the filter screen are preferably annular, and are arranged around the outer extension portion 712 to improve the filtering efficiency. In other embodiments, the filter mesh can also be in other shapes or composed of multiple segments of filter mesh.

10 and 11 , the heating plate 600 is sleeved on the outside of the motor casing 200 , the outer diameter side of the heating plate 600 matches the mounting hole 110 of the inner tank 100 , and the heating plate 600 is sealed and fixed to the mounting hole 110 . The heating plate 600 has a ring-shaped heating body 610, and the heating body 610 is arranged with a high inside and a low outside.

The washing water flows through the heating body 610, and the heating plate 600 is set on the outside of the motor casing 200, so that the heating plate 600 is used as a part of the washing water circuit, which is beneficial to the simplification of the structure, and avoids setting in the water circuit. obstruction of water flow. During the washing process of the dishwasher, the motor is started, so that the rotating shaft drives the washing impeller 400 to rotate, so that the washing water in the washing pump cavity is pumped into the washing cavity by the washing impeller 400. Since the heating plate 600 is annularly sleeved on the motor casing Therefore, the washing water entering the washing pump cavity must flow through the upper surface of the heating body 610, so that the washing water reaching the washing pump cavity in the heating state is heated, which is beneficial to improve the heating efficiency; and the heating body is provided. 610 is set as high inside and low on the outside. When the washing water flows radially inward from the outside of the heating body 610, it needs to climb up the slope, which increases the difficulty of backflow of the washing water, which causes the speed of the water flow to slow down when it flows through the heating body 610. The time for the flowing water to flow through the heating body 610 is increased, which is beneficial to improve the heating efficiency of the heating plate 600 for washing water.

As for the structure of the heating plate 600 , as shown in FIG. 11 , the heating plate 600 has a heating body 610 arranged obliquely, an inwardly curved portion 620 which is bent downward and then inwardly extending along the inner side of the heating body 610 , and an outer side along the heating body 610 . The outward bending portion 630 is bent downward and outward again, wherein the inner bending portion 620, the heating body 610 and the outward bending portion 630 are surrounded to form a concave cavity, and the heating component 640 is located in the concave cavity; by forming the concave cavity, the heating component is formed 640; for example, when water seeps in the connection at the inner or outer side of the heating plate 600, the leaked water droplets will not flow up into the cavity along the inner curved portion 620 or the outer curved portion 630, which is beneficial to protect the safety of the heating component 640. . Preferably, the heating plate 600 is made of metal material, and the heating component 640 is made of a heating film attached to the lower end surface of the heating body 610, which is conducive to heat transfer.

Regarding 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 flow through the heater is too slow, which reduces the washing efficiency; but the inclination angle of the heating body 610 is too small. The function of improving heating efficiency; preferably, the angle between the heating body 610 and the horizontal plane is 3°-8°, and more preferably, the angle between the heating body 61031 and the horizontal plane is 5°-6°.

The heating plate 600 and the motor casing 200 are fixed by assembling the fixing ring 910 . The assembly fixing ring 910 is fixed on the motor casing 200 by rotating and engaging.

The heating plate 600 is fixed on the inner tank 100 through the assembling bracket 920 . The mounting bracket 920 is fixed on the inner tank 100 at the mounting hole 110 from bottom to top, and is fixed to the bottom of the inner tank 100 by rotating and engaging the heating plate 600 , the motor, the washing pump and other components. Specifically, a plurality of fixing claws 170 extending downward are provided on the bottom wall of the mounting hole 110. As shown in FIG. 12, a plurality of outer retaining ribs 921 extending outward are provided on the mounting bracket 920. The rib 921 is matched and engaged with the fixing claw 170 . The fixing claw 170 has a supporting portion extending downward and a blocking claw portion bent inwardly along the lower end of the supporting portion, and the outer blocking rib 921 is located above the blocking claw portion. The heating plate 600 is supported by the assembling bracket 920 and moves upward, and by rotating the assembling bracket 920 , the outer retaining rib 921 is engaged with the upper part of the fixing claw 170 . The plurality of fixing claws 170 and the outer retaining ribs 921 are arranged circumferentially. The mounting bracket 920 is fixed at the mounting hole 110 by rotating and snapping.

In another embodiment, a heating component may be additionally provided in the washing pump to further improve the washing effect.

In this embodiment, as shown in FIG. 9 , the body portion 711 of the isolation plate 710 is inclined downward from the inside to the outside. Extending horizontally inward, that is, the isolation plate 710 is in the shape of a pot lid with a high inner and outer bottom. The inclined surface of the isolation plate 710 can increase the flow rate of the washing water, so that when the washing water can wash onto the flat filter screen, the residue on the filter screen can be easily washed away to prevent the residue from accumulating on the filter screen and hindering the water flow. At the same time, the inclined slope of the body of the isolation plate 710 is adapted to the inclined arrangement structure of the heating plate 600 with a high inner and an outer low. The angle between the body of the isolation plate 710 and the horizontal plane is 3°˜8°, and more preferably, the angle between the body of the isolation plate 710 and the horizontal plane is 5°˜6°.

In order to improve the strength of the filter mesh assembly 700 and prevent the isolation plate 710 from being deformed, as shown in FIG. 7 , a plurality of support ribs 120 are provided circumferentially spaced around the assembly hole 110 on the inner container 100 , and the support ribs 120 can support the isolation plate 710 . At the same time, the support ribs 120 also play a role in enhancing the strength of the assembling hole 110 of the inner container 100 . The support ribs 120 are arranged at intervals, and at the same time, a filter grid can be formed. In this embodiment, the support rib 120 is supported on the inner edge of the outer extension portion 712 .

In this embodiment, the bottom of the inner tank 100 is provided with a drain port 130 , and the drain water inlet pipe 520 of the drain pump communicates with the drain port 130 . The heating chamber communicates with the water outlet 130 . During drainage, the washing water entering the heating chamber can be guided into the drainage chamber 511 of the drainage pump through the drainage port 130 .

In the washing water filtered by the filter screen assembly 700, some fine residues still remain and flow into the heating chamber and settle into the heating chamber. In order to facilitate the collection and removal of fine residues in the heating chamber, grooves 140 are provided on the bottom surface of the inner pot 100 below the outer extension portion 712. As shown in FIG. The residue sedimentation can be collected, and the bottom surface of the groove 140 is inclined downward on the side close to the drainage port 130, that is, the depth of the groove 140 is gradually deepened toward the drainage port 130, which can facilitate the flow of fine residues along the drainage port 130 during drainage. The inclined groove 140 flows to the drain port 130 for discharge. In addition, the closer the groove 140 is to the water outlet 130, the wider the width is, which is more convenient for the discharge of fine residues. In order to facilitate processing and manufacture, in this embodiment, two arc-shaped grooves 140 are provided, which are symmetrically arranged with respect to the water outlet 130 to form a double C-shaped structure.

As shown in FIG. 8 and FIG. 4 , a through hole 715 is formed on the isolation plate 710 on the upper side of the drainage port 130 , and a filter 800 is disposed at the through hole 715 , and the filter 800 communicates with the heating cavity and the drainage cavity 511 of the drainage pump. During washing, the washing water can enter the heating chamber from the filter 800 and the filter screen assembly 700 at the same time. During drainage, a part of the washing water is filtered by the filter 800 and then enters the drainage pump, and a part of the washing water is filtered through the filter screen assembly 700 and then enters the heating chamber and then enters the drainage pump.

Specifically, as shown in FIG. 3, the filter 800 includes a fine filter 810 and a coarse filter 820, the micro filter 800 has an open upper portion, and the coarse filter 820 passes through the open upper portion of the micro filter 800, that is, the coarse filter 820 is sleeved in the micro filter 800, and the lower part of the micro filter 800 communicates with the water outlet 130. The coarse filter 820 is used to filter out larger size residues and the micro filter 800 is used to filter out smaller size residues. Preferably, the coarse filter 820 is removably 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 with a grid through which larger size residues are filtered out. In other embodiments, the coarse filter 820 may also include a coarse screen and a frame for maintaining the cylindrical shape of the coarse screen. The microfilter 800 includes a filter membrane and a frame for maintaining the cylindrical shape of the filter membrane.

The filter screen area of the filter 800 assembly can be divided into a large extent for filtering, which can solve the problem that only the coarse filter 820 and the fine filter 800 are provided with a slow filtering speed and are easily blocked.

In this embodiment, referring to FIGS. 7 and 4 , the bottom of the inner pot 100 is provided with a downwardly protruding accommodating groove 150 , the filter 800 is arranged in the accommodating groove 150 , and the drain port 130 is opened in the accommodating groove 150 . on the side wall of the groove 150 .

Preferably, the filter 800 and the accommodating groove 150 are clamped and fixed. Specifically, the bottom of the accommodating groove 150 is provided with a claw groove 160 , the bottom of the filter 800 is provided with a claw, and the filter 800 is locked into the claw groove 160 by rotating the claw and fixed.

In this embodiment, the isolation plate 710 of the filter screen assembly 700 further includes a protruding portion 714 extending outward along the edge portion of the outer extending portion 712. As shown in FIG. 8, through holes 715 are opened on the outer extending portion 712 and the protruding portion 714. . The outer edge portion protrudes from the outward arc transition to form an arc-shaped convex portion 714, so that a larger diameter through hole 715 can be opened, a larger size filter 800 can be installed, the filtering effect can be improved, and more residues can be collected, Reduce the number of times the filter 800 is disassembled to clean up debris. As shown in FIG. 1 , the filter 800 is preferably arranged at the rear side of the inner tank 100. When installing and removing the filter 800, the user does not need to force his body forward into the dishwasher, which is convenient for the installation and removal of the filter 800. In addition, during use, the user can easily observe whether the residue in the filter 800 is full, and disassemble and clean the filter 800 in time.

The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art can still The recorded technical solutions are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed in the present invention.

Claims (10)

1. A dishwasher, characterized in that, comprising: a motor, which has a motor housing and a rotating shaft coaxially arranged with the motor housing; a washing pump, which has a washing impeller fixed to the rotating shaft; a heating plate, sleeved on the outer side of the motor shell, and fixed with the inner tank of the dishwasher; The filter screen assembly is covered above the heating plate, and a heating cavity is formed between the filter screen assembly and the heating plate, and a filter screen area is provided near the outer edge of the filter screen assembly. 2 . The dishwasher according to claim 1 , wherein the filter screen assembly comprises an annular isolation plate and a filter screen disposed in the filter screen area, and the isolation plate includes a filter screen disposed above the heating plate. 3 . a body part, an outer extension part extending outward along the outer circumference of the body part, and an inner extension part extending inward along the inner circumference of the body part, between the outer extension part and the bottom surface of the dishwasher liner, the body part The heating cavity is formed between the heating plate and the inner extension part and the motor casing; the filter screen area is arranged on the outer extension part. 3 . The dishwasher according to claim 2 , wherein the filter screen area is annular, and is arranged around the outer extension portion. 4 . 4 . The dishwasher according to claim 2 , wherein the body portion of the isolation plate is inclined downward from the inside to the outside, and the outer extension portion extends horizontally outward along the outside of the body portion. 5 . 5 . The dishwasher according to claim 4 , wherein an assembly hole is provided at the bottom of the inner pot, and the heating plate is fixed on the assembly hole; and the inner pot surrounds the circumferential direction of the assembly hole. 6 . Several supporting ribs are arranged at intervals for supporting the isolation plate. 6 . The dishwasher according to claim 5 , further comprising a drain pump, the drain pump has a drain cavity, a drain impeller disposed in the drain cavity and fixed to the lower end of the rotating shaft; the inner pot The bottom is provided with a drainage port communicating with the drainage cavity, and the heating cavity is communicated with the drainage port. 7 . The dishwasher according to claim 6 , wherein a groove is provided on the bottom surface of the inner pot below the outer extension part, the groove is arranged along the circumference of the outer extension part, and the The bottom of the groove is inclined downward on the side close to the water outlet. 8 . The dishwasher according to claim 6 , wherein a through hole is formed on the isolation plate on the upper side of the drain outlet, and a filter is provided at the through hole, and the filter is connected to the heating cavity and the heating chamber. 9 . The drainage chambers communicate with each other. 9 . The dishwasher of claim 8 , wherein the filter includes a micro filter and a coarse filter, the micro filter having an open upper portion, the coarse filter passing through the opening of the micro filter. 10 . In the upper part, the micro filter communicates with the heating chamber and the drainage chamber of the drainage pump. 10 . The dishwasher of claim 8 , wherein the isolation plate further comprises a protrusion extending outward along an edge portion of the outer extension, and the filter is disposed on the outer extension. 11 . on the part and the protruding part.

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