JPH05115412A - Filter device for tableware washing machine - Google Patents

Abstract

PURPOSE:To constitute the device 80 that a jam of garbage and a water leakage can be prevented, where the garbage is invisible at the time when taking out tableware, etc., and also, the garbage scarcely adheres to a washing filter and the device consists of a structure whose cleaning is simple, and tableware, etc., can be washed cleanly. CONSTITUTION:The upper opening part 46a of a recessed filter box 46 formed on the bottom face of a washing tank 2 is covered with an attachable/detachable upper filter member 41 consisting of the prescribed inclined surface, and in an opening part 41b of this upper filter member 41, an attachable/detachable garbage basket 42 in which a garbage filter part 42c is positioned on a drain port 23 side of the filter box 46 from the upper part, and also, a washing filter part 42b positioned on a water supply port 5 side is installed. Also, this garbage basket 42 is partitioned by a partition plate 43 to the halfway in the vertical direction from an opening part 42a side, and it is obstructed that garbage which collects in the garbage filter part 42c moves to the washing filter part 42b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher for spraying washing water to wash dishes, and particularly to a dishwasher capable of efficiently separating the residual food in the cleaning water and treating the residual food. The present invention relates to a filter device for a washing machine.

[0002]

2. Description of the Related Art FIG. 5 shows, for example, Japanese Patent Laid-Open No. 2-49626.
It is a longitudinal cross-sectional view which shows the conventional dishwasher shown by the publication.

In the figure, 1 is a main body, 2 is a cleaning tank provided in the main body 1, 3 is a water supply port provided at the top of the cleaning tank 2, and 4 is formed at the bottom of the cleaning tank 2 to store cleaning water. First drainage pool (hereinafter referred to as the first pool),
5 is a water supply port provided in the first pool 4 for circulating the cleaning water, 6 is a drain port provided in the first pool 4 for draining the cleaning water, 7 is a space between the water supply port 5 and the drain port 6. Is a cleaning filter disposed in the. Reference numeral 8 denotes a water supply hose having one end connected to the water supply port 3 and the other end extended to the outside of the main body 1 to be connected to a faucet or the like of the water supply, 9 is a solenoid valve arranged in the middle of the water supply hose 8, and 10 is a water supply port 5 is a cleaning pump, 11 is a water pipe whose one end is connected to the discharge side of the cleaning pump 10, 12
Is an injection nozzle rotatably supported in a horizontal plane, and this injection nozzle 12 is connected to the other end of the water supply pipe 11. Reference numeral 13 denotes a plurality of injection ports arranged in the injection nozzle 12. Reference numeral 14 is a car for storing the tableware 15 and 16 is a rail provided in the cleaning tank 2 for guiding the movement of the car 14. 17 is an opening provided on the front surface of the main body 1,
Reference numeral 18 is a door which is pivotally attached to the main body 1 and which opens and closes the opening 17,
Is a drain pipe whose one end is connected to the drain port 6 of the first pool 4, 2
Reference numeral 0 denotes a second drain pool (hereinafter referred to as a second pool) provided outside the main body 1 and having an open upper portion, and 21 denotes a second pool 20.
The drainage pipe 19 is inserted into the inlet 21. Reference numeral 22 denotes a drainage filter arranged in the second pool 20 and connected to an inlet 21 to which the drainage pipe 19 is connected. Reference numeral 23 is a drain port provided in the second pool 20, 24 is a drain pipe which is connected to the drain port 23 of the second pool 20 and is drawn out of the main body 1, and 25 is disposed in the middle of the drain pipe 24. It is a drainage pump for drainage.

The conventional dishwasher is constructed as described above and operates as follows. First, the electromagnetic valve 9 is released to supply a predetermined amount of cleaning water into the cleaning tank 2 from the water supply port 3 via the water supply hose 8. The cleaning water stored in the first pool 4 is guided by the cleaning pump 10 from the water supply port 5 to the jet nozzle 12 via the water supply pipe 11. Injection nozzle 12
The water is supplied from the cleaning pump 10, and the cleaning water is sprayed from the spray port 13 to the tableware 15 in the car 14 while rotating to wash it. During this time, the residual food contained in the cleaning water adheres to the cleaning filter 7. After a lapse of a predetermined time, the washing pump 10 is stopped, the drainage pump 25 is operated, and the first
The wash water containing the residual food in the puddle 4 is discharged to the outside of the main body 1 through the drain pipe 19, the second puddle 20, the drainage filter 22 and the drain pipe 24. Next, new cleaning water is supplied, the cleaning pump 10 is driven, rinsing is performed, and the cleaning water is discharged. Finally, the heater (not shown) is energized to dry the tableware 15. After this, open the door 18 and the basket 14
To the outside. The second pool 20 is outside the main body 1,
Since the upper part is open, check the dirt condition of the wash water and the state of adherence of the residual food to the drainage filter 22. If necessary, remove the drainage filter 22 from the second pool 20 for cleaning and resetting. To do.

[0005]

In the conventional dishwasher as described above, the wash water containing the residual food in the first pool 4 is made to flow to the second pool 20 via the drain pipe 19. The drainage pipe 19 may be clogged with residual food, or water may leak from the connection portion of the drainage pipe 19. Moreover, the residual food remaining in the first pool 4 after drainage was visible when the tableware 15 was taken out. Furthermore, in the conventional dishwasher, a relatively large amount of residual food adheres to the cleaning filter 7, and this cleaning filter 7
Cleaning was also difficult. The washing water was passing through the washing filter 7 to which the residual food was attached during washing and also during rinsing after draining the washing water. Therefore, clean wash water is not always circulated, and the tableware 15 cannot be washed cleanly.

Therefore, the invention of claim 1 can prevent clogging and water leakage of the leftover food, and the leftover food cannot be seen when the tableware is taken out.
Moreover, it is an object of the present invention to provide a filter device for a dishwasher, which has a structure in which residues are not easily attached to the washing filter and is easy to clean, and which is capable of washing dishes in a clean manner.

In addition, the conventional dishwasher is usually equipped with a heater for heating the wash water to turn it into warm water for washing. However, when the heater is attached to the lower portion of the cleaning tank 2 in an exposed state, the plastic tableware 15 may drop on the heater and melt. Further, when the heater is installed in a circulating water channel such as a water supply pipe which is not directly visible from the inside of the cleaning tank 2, it is difficult to clean the cauldron and the like of the residual food adhering to the heater. Furthermore,
In the dishwasher in which the heater is attached to the back surface of the cleaning tank 2, the heat exchange rate when heating the cleaning water was not good.

Therefore, the invention of claim 2 provides a filter device for a dishwasher, in which there is no risk that the plastic tableware will melt even if it falls, and the heater can be easily cleaned and the heat exchange rate is good. Is an issue.

[0009]

According to a first aspect of the present invention, there is provided a filter device for a dishwasher, which is formed on a bottom surface of a washing tank, has a drain port at a bottom end thereof, and has a bottom end opposite to the drain port. And a concave filter box having a water supply port in its part, and an upper filter member that detachably covers the upper opening of the filter box, has a bottom located above the drain, and has a predetermined slope having an opening in the bottom. And detachably attached to the opening of the upper filter member from above, and the wash filter part is located on the water outlet side of the filter box while the leftover filter part is located on the drain port side of the filter box. A leftover basket having an opening on the side, and the leftover basket is partitioned from the opening side to the middle in the vertical direction to prevent the leftover food collected in the leftover food filter part from moving to the cleaning filter part. It is intended to and a Setsuban.

A filter device for a dishwasher according to a second aspect of the present invention is formed on the bottom surface of a washing tank, has a drain port at the bottom end, and has a water feed port at the bottom end opposite to the drain port. A concave filter box, a cleaning heater disposed in the filter box for heating cleaning water, and a detachably cover the upper opening of the filter box, and the bottom is located above the drainage port, and the bottom is An upper filter member consisting of a predetermined slope having an opening in the upper filter member is detachably attached to the opening of the upper filter member from above, and the leftover filter part is located on the drain port side of the filter box and The wash filter part is located on the water inlet side, and the leftover basket having an opening at the top, and the leftover basket is partitioned from the opening side to the middle in the vertical direction. It is intended to and a partition plate for preventing movement of the cleaning filter unit Zan'na collected in the.

[0011]

In the filter device for the dishwasher according to the present invention, the upper opening of the concave filter box formed on the bottom of the cleaning tank is covered with the removable upper filter member having a predetermined slope, The removable food basket with the filter part located on the drain port side of the filter box from above the opening of the filter member and the cleaning filter part located on the water inlet side of the filter box is installed. Is a partition plate from the opening side to the middle in the vertical direction to prevent movement of the residual food collected in the residual food filter portion to the cleaning filter portion.
Cleaning water flows to the water supply port of the filter box through the upper filter member and the cleaning filter part of the residual food basket, and large residual foods are collected in the residual food filter part of the residual food basket. When draining, the wash water is drained from the outlet of the filter box through the filter part of the residual basket and the residual food on the upper surface of the upper filter member and the cleaning filter part of the residual basket is washed water. At the same time, it flows into the leftover filter part of the leftover basket.

In the filter device for a dishwasher according to a second aspect of the present invention, a washing heater for heating washing water is provided in the same filter box as in the first aspect, and the upper opening portion of the filter box has a predetermined slope. Since it is covered with a removable upper filter member consisting of, the cleaning water flows directly through the cleaning heater, and even if plastic dishes fall off during cleaning, the cleaning heater is not touched directly and the upper filter member is It can be removed to clean the inside of the filter box and the cleaning heater.

[0013]

EXAMPLES Examples of the present invention will be described below.

FIG. 1 is a front view showing the inside of a dishwasher in which a filter device for a dishwasher according to an embodiment of the present invention is used, and FIG. 2 is for a dishwasher according to an embodiment of the present invention. It is a side view which shows the inside of the dishwasher in which the filter apparatus is used. In the figure, the same reference numerals and symbols as those of the above-mentioned conventional example indicate the same or corresponding components as those of the above-mentioned conventional example.

In the figure, 10a and 10b are first and second cleaning pumps connected to the water supply port 5, and 11a and 11b.
Is a water supply pipe whose one end is connected to the discharge side of the cleaning pumps 10a and 10b, and 12a and 12b are injection nozzles rotatably supported in a horizontal plane.
12b is connected to the other ends of the water supply pipes 11a and 11b. Reference numerals 13a and 13b denote a plurality of injection ports arranged in the injection nozzles 12a and 12b. 14a and 14b are baskets that store the tableware 15 and are divided into two upper and lower stages. Two
Denoted at 6 is a detergent / rinse box arranged on the back surface of the door 18, and the detergent / rinse stored in the detergent / rinse box 26 is put into the washing water as needed. Two
7 is a cleaning heater for heating the cleaning water, 31 is an intake port for sucking air for drying the tableware 15 after cleaning, 32 is an intake air duct for guiding the air sucked from the intake port 31 into the cleaning tank 2, 33 Is a blower for drying which is arranged in the middle of the intake air passage 32, 34 is an air outlet opening to the lower part of the cleaning tank 2, 35 is a drying heater which is arranged inside the intake air passage 32, and 36 is A temperature sensor for detecting the blowing temperature of the drying air, 37 is a suction port opened at the ceiling of the cleaning tank 2, 3
Reference numeral 8 is an exhaust air passage that guides the air sucked from the suction port 37 to the outside of the main body 1, and 39 is an exhaust port 39 that opens on the surface of the main body 1 of the dishwasher. Reference numeral 40 denotes a filter device disposed at the bottom of the cleaning tank 2, through which the residual food in the cleaning water is separated and removed during cleaning.

Even in the dishwasher having this structure, water supply,
The washing and draining operations are substantially the same as those of the conventional dishwasher described above. The solenoid valve 9 is released, and a predetermined amount of cleaning water is supplied from the water supply port 3 into the cleaning tank 2 through the water supply hose 8, and the cleaning agent is rinsed from the detergent / rinse box 26 into the cleaning water. The cleaning water stored at the bottom of the cleaning tank 2 is guided by the first cleaning pump 10a from the water supply port 5 to the jet nozzle 12a located below through the water supply pipe 11a, and the second cleaning pump 10b supplies the water supply port. 5 through the water pipe 11b to the jet nozzle 12a located above. Each of the jet nozzles 12a, 12b is rotated by the water supplied from the washing pumps 10a, 10b, and the washing water is spun from the jet ports 13a, 13b while rotating.
The tableware 15 in b is sprayed to wash them. Thus, in the dishwasher of this configuration, the two upper and lower baskets 14
The dishes 15 in a and 14b are washed at the same time, and the residual food is filtered by the filter device 40 and gradually accumulated. When cleaning is performed for a predetermined time, the cleaning pump 10
a, 10b are stopped, the drainage pump 25 is operated, and the cleaning water containing the residual food at the bottom of the cleaning tank 2 is filtered by the filter device 40.
The leftover food is stored in and is discharged to the outside of the main body 1 through the drainage pipe 24. Next, new wash water is supplied to drive the wash pumps 10a and 10b, and the upper and lower two-stage cages 14a and 1b
The dishes 15 in 4b are rinsed and the cleaning water is discharged. Finally, the drying heater 35 is energized and the blower 33 is operated to heat the air sucked in through the intake port 31 and blow it out as warm air from the outlet 34 into the washing tank 2 for the dishes 1
Dry 5 with warm air. The air circulated in the cleaning tank 2 flows from the suction port 37 to the exhaust air passage 38, and is exhausted from the exhaust port 39. Further, in order to dispose of the residual food accumulated in the filter device 40, the filter device 40 is cleaned and reset as necessary.

Next, the filter device for the dishwasher of this embodiment will be described in detail. FIG. 3 is a plan view showing a filter device for a dishwasher according to an embodiment of the present invention, and FIG. 4 is a sectional view showing a filter device for a dishwasher according to an embodiment of the present invention.

In the figure, 41 is an upper filter member consisting of a predetermined eccentric inclined surface having a large number of small holes 41a, and 42.
Is an opening 41 formed at the bottom of the upper filter member 41.
It is a detachable leftover basket that is mounted on b from above, and has a cleaning filter portion 42b and a leftover filter portion 42c. Reference numeral 43 denotes a partition plate that vertically partitions the residual food basket 42 from the opening 42a side, and prevents the residual food collected in the residual food filter unit 42c from moving to the cleaning filter unit 42b by the partition plate 43. .. A handle 43a is provided on the upper surface of the partition plate 43, and the handle 43a can be attached to and detached from the leftover basket 42. The partition plate 4
3, the gap B between the cleaning filter portion 42b and the residual food filter portion 42c is larger than the opening width A.
Reference numeral 44 denotes a car accommodating portion attached to the opening 41b of the upper filter member 41, the outer periphery of which is formed of a mesh member. 45 is a handle for removing the leftover basket 42, 46
Is a concave filter box formed at the bottom of the cleaning tank 2, and has a drain port 23 at the bottom end of the filter box 46 and a water feed port 5 on the side opposite to the drain port 23. The upper opening 46 a of the filter box 46 is detachably covered with the upper filter member 41. The bottom of the upper filter member 41 is located above the drain port 23, and the bottom has an opening 41b. Then, the residual food filter section 42c is located on the drain port 23 side of the filter box 46 of the residual food basket 42, and the cleaning filter section 42b is located on the water supply port 5 side of the filter box 46.

In the filter device for a dishwasher having this structure, during normal cleaning, the cleaning water flows through the upper filter member 41 and the cleaning filter portion 42b of the leftover basket 42 to the water supply port 5 of the filter box 46 (see the figure). (Refer to the solid line arrow), the small residual food is the cleaning filter portion 42 of the residual food basket 42.
b and the upper surface of the upper filter member 41, and large residual foods are collected in the residual food filter portion 42c of the residual food basket 42. Also,
At the time of drainage, the cleaning water is drained from the drainage port 23 of the filter box 46 to the drainage pipe 24 via the drainage filter part 42c of the residual food basket 42 (see the solid arrow in the figure), and at this time, on the upper surface of the upper filter member 41. The attached residual food flows into the residual food basket 42 together with the cleaning water, and the residual food adhered to the cleaning filter portion 42b of the residual food basket 42 is also washed by the cleaning filter portion 4.
It flows into 2b. Therefore, even if new cleaning water for rinsing is supplied into the cleaning tank 2, there is not much residue left on the upper surface of the upper filter member 41 and the cleaning filter portion 42b of the residual food basket 42, and cleaning is performed here. Since water passes and circulates, it can be rinsed with clean wash water. The residual food collected in the residual food basket 42 of the filter device 40 can be disposed of by removing the residual food basket 42 by holding the handle 45, and the upper filter member 41 can be cleaned by removing it as necessary.

As described above, the filter device for the dishwasher of this embodiment is formed on the bottom surface of the cleaning tank 2, has the drain port 23 at the end of the bottom surface, and has a water supply port on the side opposite to the drain port 23. Concave filter box 46 with 5
And detachably covers the upper opening portion 46a of the filter box 46, and the bottom portion is located above the drainage port 23,
A large number of small holes 4 having an opening 41b at the bottom.
1a, an upper filter member 41 having a predetermined eccentric inclined surface, a car housing portion 44 formed of a mesh material, which is disposed in an opening 41b formed in a bottom portion of the upper filter member 41, and the car housing Is detachably attached to the portion 44 from above the opening 41b of the upper filter member 41, and the leftover filter portion 42c is located on the drain outlet 23 side of the filter box 46 and is washed on the water outlet 5 side of the filter box 46. The filter part 42b is located,
The residual food basket 42 having an opening 42a in the upper part and the residual food basket 42 are partitioned from the opening 42a side to the middle in the vertical direction, and the residual food collected in the residual food filter portion 42c moves to the cleaning filter portion 42b. And a partition plate 43 for blocking the above.

That is, in the dishwasher filter device of this embodiment, the upper opening portion 46a of the concave filter box 46 formed on the bottom surface of the washing tank 2 is covered with the removable upper filter member 41 having a predetermined slope. The removable filter part 42c is located on the drain port 23 side of the filter box 46 from above the opening 41b of the upper filter member 41, and the cleaning filter part 42b is located on the water feed port 5 side of the filter box 46. A residual food basket 42 is attached, and the residual food basket 42 is vertically partitioned from the opening 42a side by a partition plate 43 to prevent the residual food collected in the residual food filter unit 42c from moving to the cleaning filter unit 42b. To do.

Therefore, the filter device for the dishwasher of this embodiment does not have a structure in which the cleaning water containing the residual food in the first pool 4 flows to the second pool 20 via the drain pipe 19 as in the conventional case. Therefore, the drainage pipe 19 may be clogged with residual food, or the drainage pipe 1
Water does not leak from the connection part of 9. Further, the residual food remaining in the residual food basket 42 of the post-drainage filter device 40 is not visible when the tableware 15 is taken out. Particularly, in the dishwasher filter device of the present embodiment, at the time of washing, the washing filter portion 4 of the upper filter member 41 and the residual food basket 42 is used.
The washing water flows to the water supply port 5 of the filter box 46 via 2b, and the large residual food is the residual food filter portion 42 of the residual food basket 42.
Collect in c. Further, at the time of drainage, the drainage port 23 of the filter box 46 is passed through the residual food filter portion 42c of the residual food basket 42.
The washing water is drained from the upper filter member 41 at this time.
Of the leftover food and the cleaning filter portion 42b of the residual food basket 42 flow into the residual food filter portion 42c of the residual food basket 42 together with the cleaning water. In this way, the flow of water passing through the filter device 40 changes between the time of washing and the time of draining, and the leftover food can be efficiently separated and collected. For this reason, the residue on the upper filter member 41 is unlikely to adhere to the upper filter member 41, and the relatively clean cleaning filter portion 42b of the upper filter member 41 and the residue basket 42 during cleaning and during rinsing after draining the cleaning water. Since the wash water passes and clean wash water constantly circulates, the dishes 15 can be washed cleanly. Moreover, the residual foods are collected in the residual food filter portion 42c of the residual food basket 42, the residual foods can be treated by removing the residual food basket 42, and the upper filter member 41 and the filter can be removed by removing the upper filter member 41. The inside of the box 46 can be cleaned. Therefore, the processing of the leftover food and the cleaning of the filter device 40 can be made extremely easy.

Further, in the filter device for the dishwasher of this embodiment, the cleaning heater 27 for heating the cleaning water is provided in the filter box 46, and the upper opening 46a of the filter box 46 is detachable from the upper filter. It is covered with the member 41. That is, the cleaning heater 27 is installed in the filter device 40.

Therefore, even if the cleaning water flows directly through the cleaning heater 27 and the plastic tableware 15 drops from the baskets 14a and 14b during cleaning, the cleaning heater 27 is not directly touched. Therefore, there is no concern that the plastic tableware 15 is melted by heat. Moreover, the cleaning heater 27 is mounted in the filter box 46, and the cleaning heater 27 is removed from the cleaning tank 2 simply by removing the upper filter member 41.
You can clean the cabbage etc. As a result, there is no risk that plastic tableware will fall and melt, and
The cleaning heater 27 can be easily cleaned.

[0025]

As described above, the filter device for a dishwasher according to the first aspect of the present invention comprises the filter box, the upper filter member, the leftover basket and the partition plate, and is provided on the bottom surface of the washing tank. The upper opening of the formed concave filter box is covered with a removable upper filter member consisting of a predetermined slope, and the leftover filter part is located on the drain port side of the filter box from above in the opening of this upper filter member. Attach a removable residue basket with the cleaning filter located on the water inlet side of the filter box, partition this residue basket vertically from the opening side to the middle with a partition plate, and collect the residue collected in the residue filter part. By preventing the vegetables from moving to the cleaning filter section, during cleaning, the cleaning water flows to the water supply port of the filter box through the upper filter member and the cleaning filter section of the residual basket. , Large residual food is collected in the residual food filter part of the residual food basket, and at the time of draining, the cleaning water is drained from the filter box drain port through the residual food filter part of the residual food basket. In addition, the residual food attached to the cleaning filter part of the residual basket flows into the residual food filter part of the residual basket together with the cleaning water, so the flow of water passing through the filter device during cleaning differs from that during drainage. Vegetables can be separated, and residual foods are unlikely to adhere to the upper filter member, so that clean washing water circulates and dishes can be washed cleanly even during washing and rinsing after draining the washing water. Moreover, clogging and water leakage of the leftover food can be prevented, the leftover food can not be seen when the tableware is taken out, and the treatment of the leftover food and cleaning of the filter device can be made extremely easy.

According to a second aspect of the present invention, the filter device for a dishwasher comprises a washing heater in addition to the first aspect, and a washing heater for heating washing water is provided in the same filter box as in the first aspect, By covering the upper opening of this filter box with the removable upper filter member, the cleaning water directly flows through the cleaning heater, and even if the plastic dishes fall off during cleaning, the cleaning heater is not directly touched, Since the upper filter member can be removed and the inside of the filter box and the cleaning heater can be cleaned, there is no risk that plastic dishes will melt and the cleaning heater can be easily cleaned.

[Brief description of drawings]

FIG. 1 is a front view showing the inside of a dishwasher in which a filter device for a dishwasher according to an embodiment of the present invention is used.

FIG. 2 is a side view showing the inside of a dishwasher in which the filter device for a dishwasher of one embodiment of the present invention is used.

FIG. 3 is a plan view showing a filter device for a dishwasher according to an embodiment of the present invention.

FIG. 4 is a sectional view showing a filter device for a dishwasher according to an embodiment of the present invention.

FIG. 5 is a vertical cross-sectional view showing a conventional dishwasher.

[Explanation of symbols]

 1 main body 2 cleaning tank 5 water supply port 10a, 10b cleaning pump 11a, 11b water supply pipe 12a, 12b injection nozzle 13a, 13b injection port 14a, 14b basket 15 tableware 17 opening 18 door 23 drainage port 24 drainage pipe 25 drainage pump 26 Detergent / rinse box 27 Washing heater 40 Filter device 41 Upper filter member 41a Small hole 41b Opening 42 Leftover basket 42a Opening 42b Washing filter 42c Leftover filter 43 Partition plate 43a Handle 44 Basket 45 45 Handle 46 Filter box 46a Upper opening

[Procedure amendment]

[Submission date] February 4, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

[0007] In the conventional dishwasher, the washing water is usually heated to warm water for washing and hot air for drying is used.
It had a heater to make it. However, when the heater is attached to the lower portion of the cleaning tank 2 in an exposed state, the plastic tableware 15 may drop on the heater and melt during drying . Further, when the heater is installed in a circulating water channel such as a water supply pipe which is not directly visible from the inside of the cleaning tank 2, it is difficult to clean the cauldron and the like of the residual food adhering to the heater. Further, in the dishwasher in which the heater is attached to the back surface of the cleaning tank 2, the heat exchange rate when heating the cleaning water is not good.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kiyoshi Nakamura 1-3 Komaba-cho, Nakatsugawa-shi, Gifu Mitsubishi Electric Corporation Nakatsugawa Works (72) Inventor Yoshitaka Yajima 1-3-3 Komaba-cho, Nakatsugawa-shi, Gifu Mitsubishi Electric Nakatsugawa Mfg. Co., Ltd. (72) Inventor Masaharu Ohori 1-3 Komaba-cho, Nakatsugawa-shi, Gifu Mitsubishi Electric Corporation Nakatsugawa Mfg. Co., Ltd. (72) Naoki Nishio 1-3-3 Komaba-cho, Nakatsugawa-shi, Gifu Mitsubishi Electric Corporation Nakatsugawa Works

Claims (2)

[Claims] 1. A concave filter box formed on the bottom surface of a cleaning tank, having a drain port at the bottom end and a water outlet at the bottom end opposite to the drain port, and an upper opening of the filter box. Detachably covers,
A bottom part is located above the drainage port, and an upper filter member is formed of a predetermined slope having an opening at the bottom part, and is detachably attached to the opening part of the upper filter member from above, and the drainage port side of the filter box. The wash filter part is located at the water inlet side of the filter box and the wash basket part having an opening at the top, and the leftover basket is partitioned halfway in the vertical direction from the opening side. ,
A filter device for a dishwasher, comprising: a partition plate that prevents the residual food collected in the residual food filter unit from moving to the cleaning filter unit. 2. A concave filter box formed on the bottom surface of the cleaning tank, having a drain port at the bottom end and having a water outlet on the bottom end face opposite to the drain port, and disposed in the filter box. A cleaning heater for heating the cleaning water, and detachably covering the upper opening of the filter box,
A bottom part is located above the drainage port, and an upper filter member is formed of a predetermined slope having an opening at the bottom part, and is detachably attached to the opening part of the upper filter member from above, and the drainage port side of the filter box. The wash filter part is located at the water inlet side of the filter box and the wash basket part having an opening at the top, and the leftover basket is partitioned halfway in the vertical direction from the opening side. ,
A filter device for a dishwasher, comprising: a partition plate that prevents the residual food collected in the residual food filter unit from moving to the cleaning filter unit.