JPH08112233A - Dishwasher - Google Patents

Abstract

PURPOSE: To allow all stains which come off tableware to be washed away, and solve the problem of stains sticking in a drying process. CONSTITUTION: While a water supply unit 20 supplies water to a washing chamber 3 from a position near one side of the washing chamber 3, a water returning unit 38 which returns a part of waste water of a drainage unit 33 which drains water in the washing chamber 3 outside the machine to the washing chamber 3 from the other side is provided, and water supplied from the water supply unit 20 is flowed to one side of the bottom of the washing chamber 3 and a part of waste water from the water returning unit 38 is returned to the other side of the bottom of the washing chamber 3, allowing stains from tableware to flow not only in one side but also in the other side. The return of a part of waste water prevents stains from remaining and sticking to the bottom of the washing chamber due to heat from a heater in a drying process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a dishwasher for washing fountains.

[0002]

2. Description of the Related Art Conventionally, in a dishwasher for performing this type of fountain cleaning, a water supply device mainly including a water supply valve for supplying water to the cleaning chamber and water supplied into the cleaning chamber are sprayed into the cleaning chamber. A washing device mainly including a fountain arm and a washing pump for washing dishes, a drainage device mainly including a drainage pump for discharging water in the washing chamber to the outside of the machine, and an intake fan and air supply for drying dishes in the washing chamber A drying device mainly including a duct and a heater is provided to supply water to the washing chamber, wash the dishes with a fountain, drain water from the washing chamber, and dry the dishes.

Further, in this device, since the fountain arm and the like of the above-mentioned washing device are provided in the central portion of the washing chamber in order to spray water evenly on the dishes, the water supply device is installed in the washing chamber to avoid it. It is provided so as to supply water into the cleaning chamber from a position offset to one side.

[0004]

DISCLOSURE OF THE INVENTION In a dishwasher, dirt dropped from dishes is washed away by each water supply before washing (washing and rinsing). However, as described above, although the water supply device is provided to supply water into the cleaning chamber from a position biased to one side of the cleaning chamber even in order to avoid the fountain arm of the cleaning device, etc. There is a risk that the dropped dirt can be flowed only on one side of the bottom of the cleaning chamber, and the dirt remains on the other side.

Further, the water supply by the above-mentioned water supply device is not performed before the drying process, so that the dirt left by the drainage before that may stick to the bottom of the cleaning chamber due to the heat of the heater. It was

The present invention has been made in view of the above-mentioned circumstances, and therefore an object thereof is to provide a dishwasher capable of flushing the dirt dropped from dishware as little as possible, and at the same time, in the drying process. An object of the present invention is to provide a dishwasher capable of solving the problem of sticking dirt.

[0007]

In order to achieve the above object, in the dishwasher of the present invention, firstly, a washing chamber and a water supply into the washing chamber from a position offset to one side of the washing chamber. A water supply device for cleaning, a cleaning device for spraying water supplied into the cleaning chamber into the cleaning chamber to wash dishes, and a drainage device for discharging water in the cleaning chamber out of the machine. It is characterized in that a return water device is provided for returning a part of drainage from the drainage device into the cleaning chamber from a position on the other side with respect to one side of the cleaning chamber.

In this case, in the case where the washing chamber is provided with a drying device for supplying air to dry the dishes, it is advisable to connect a return water device to the air supply part of the drying device. In addition, a guide part for diffusing a part of the waste water returned by the water return device may be provided at the bottom of the cleaning chamber.

Secondly, in the dishwasher of the present invention,
A cleaning chamber, a water supply device for supplying water into the cleaning chamber from a position offset to one side of the cleaning chamber, a cleaning device for spraying the water supplied into the cleaning chamber into the cleaning chamber to wash dishes, and a cleaning chamber And a drainage device for discharging the water to the outside of the machine, wherein a second water supply device for supplying water into the cleaning chamber from a position on the other side with respect to one side of the cleaning chamber is provided.

Thirdly, in the dishwasher of the present invention,
A cleaning chamber, a water supply device for supplying water into the cleaning chamber from a position offset to one side of the cleaning chamber, a cleaning device for spraying the water supplied into the cleaning chamber into the cleaning chamber to wash dishes, and a cleaning chamber A drainage device for discharging the water out of the machine, wherein the water supplied by the water supply device flows into the cleaning chamber while flowing down the water into the cleaning chamber. It is characterized in that it is provided with a guide portion that guides it to a position and causes it to flow down.

Fourthly, in the dishwasher of the present invention,
A cleaning chamber, a water supply device for supplying water into the cleaning chamber from a position offset to one side of the cleaning chamber, a cleaning device for spraying the water supplied into the cleaning chamber into the cleaning chamber to wash dishes, and a cleaning chamber And a drainage device for discharging the water to the outside of the machine, wherein the water supply device is operated even during drainage before the drying process.

[0012]

According to the first means, water is supplied by the water supply device on one side of the bottom of the cleaning chamber, and part of the waste water is returned by the water return device on the other side. It can flow not only on one side of the chamber bottom but also on the other side.

In this case, in particular, in the case where the washing chamber is provided with the drying device for drying the dishes, and the drier is connected to the air supply part of the drying device, before the drying process. Since part of the waste water is returned by the return device when the water is discharged, the dirt is washed away, so that it does not receive the heat of the heater and stick to the bottom of the cleaning chamber during drying. Moreover, a part of the drainage can be returned by using the air supply part of the drying device.

Further, in the case where a guide portion for diffusing a part of the drainage returned by the water return device is provided at the bottom of the washing chamber,
A part of the waste water returned by the return water device can be made to flow not only to the other side of the bottom of the cleaning chamber but also to one side thereof, and dirt on both sides can be made to flow.

According to the second means, water is supplied by the water supply device on one side of the cleaning chamber and water is supplied by the water supply device (second water supply device) on the other side as well. It can flow not only on one side of the chamber bottom but also on the other side.

According to the third means, water is supplied by the water supply device on one side of the cleaning chamber, and water is also supplied to the other side by being guided by the guide portion.
Dirt can be flushed not only on one side of the bottom of the cleaning chamber, but also on the other side.

According to the fourth means, the dirt is washed away by the water supply by the water supply device performed during the drainage before the drying process, so that the dirt adheres to the bottom of the cleaning chamber due to the heat of the heater during the drying. Will disappear.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First of all, FIG. 2 shows an outer box 1 of the whole dishwasher, and an inner box 2 is arranged inside to form a washing chamber 3, and a door is provided at an opening portion of the washing chamber 3 which is a dish entrance / exit. 4 is pivoted in a structure that opens downward.

A heater 5 is arranged at the bottom of the cleaning chamber 3, and a water pipe 6 and a lower fountain arm 7 and an upper fountain are provided in the central portion of the cleaning chamber 3 from the back to the center. The arm 8 is provided. Further, an exhaust port 9 is formed on the right side and an intake port 10 is formed on the left side at the upper edge of the opening in the front of the cleaning chamber 3, and an exhaust duct 11 for exhausting from the inside of the cleaning chamber 3 is formed in the exhaust port 9. A suction duct 12 for sucking air into the cleaning chamber 3 from outside the machine is connected to the suction port 10.

The air intake duct 12 has an inner box 2 at the rear end thereof.
1 and 3, the intake fan 13 is connected to an air supply duct 14 which is an air supply unit attached to the right side of the back surface of the inner box 2 as shown in FIGS. .
As shown in FIG. 2, the air supply duct 14 is connected to the air supply port 15 formed in the lower left part of the inner part of the cleaning chamber 3, and therefore the intake fan 13 is passed through the intake duct 12.
The outside air sucked by is supplied to the inside of the cleaning room 3 through the air supply duct 14 through the air supply port 15.
The supplied air is heated by the heater 5 to generate hot air, and the hot air produces dishes (not shown).
It is designed to be dried. Therefore, the intake duct 12, the intake fan 13, the air supply duct 14, and the heater 5 constitute a drying device 16.

On the other hand, a water supply port 17 is formed on the upper right side of the back, which is a position offset to one side of the cleaning chamber 3, and inside the water supply port 17 shown in FIGS. Box 2
The water supply valve 18 is arranged on the upper left side of the back surface, and the water supply valve 18
Connect the water supply pipe 19 introduced into the outer box 1 from outside the machine to
A water supply device 20 for supplying water into the cleaning chamber 3 from the water supply port 17 through the water supply pipe 19 and the water supply valve 18 is configured.

A washing pump 21 and a drainage pump 22 are provided in the lower portion inside the outer box 1 below the washing chamber 3 and the water suction port 23 of the washing pump 21 has a bottom front portion of the washing chamber 3. The water tank 24 provided in the above is connected by the connection pipe 25, and the water outlet 26 is connected by the connection pipe 27 to the water distribution pipe 6,
The water supplied into the washing chamber 3 is sucked from the water storage tank 24, pressure-fed to the lower fountain arm 7 and the upper fountain arm 8 through the water distribution pipe 6, and sprayed from the both fountain arms 7 and 8 to wash dishes. The cleaning device 28 is configured.

Further, the water storage port 24 is connected to the water suction port 29 of the drainage pump 22 by a connection pipe 30, and the water discharge port 3
1 is connected to the drain pipe 32 to store the water in the cleaning chamber 3 in the water tank 2
A drainage device 33 that inhales from 4 and discharges out of the machine through the drainage pipe 32 is configured.

Here, the drainage pipe 32 is provided with pipe joints 34 and 35 at two different locations on the lower side and the upper side, and connecting tubes 36 and 37 are connected to these pipe joints 34 and 35, respectively. The respective tip portions of these connection tubes 36 and 37 are connected to the portion on the back side of the air supply port 15 of the air supply duct 14 which is the air supply portion of the drying device 16, so that part of the drainage by the drainage device 33 is connected. A return water device 38 is configured to return the pipe joints 34 and 35 to the inside of the cleaning chamber 3 from the positions on the other side with respect to the one side of the cleaning chamber 3 through the connecting tubes 36 and 37, respectively.

In addition, at the bottom of the cleaning chamber 3, the return water device 3
As a guide portion for diffusing a part of the waste water returned by 8, a large number of bulging portions 39 extending radially from a position immediately below the air supply port 15 are provided as shown in FIG. The bulging portion 39 may be configured by fixing a long plate or the like that is separate from the inner box 2.

Now, in the case of the structure as described above,
Water is supplied by the water supply device 20 on the right side in FIG. 2 (the left side in FIGS. 1 and 3), which is one side in the cleaning chamber 3, each time before and after washing. Each time the waste water is drained after passing, a part of the waste water is returned by the return water device 38 at the left side in FIG. 2 (right side in FIGS. 1 and 3) which is the other side in the cleaning chamber 3. With these, dirt that has fallen off the dishes can be flowed not only on one side of the bottom of the cleaning chamber 3 but also on the other side, and is not left.

Further, in this case, when the water is drained after the final rinsing and before the drying process, the return water unit 38 is operated as described above.
Since some dirt is washed away by returning part of the drainage by
It receives the heat of the heater 5 during the subsequent drying, and the cleaning chamber 3
No more sticking to the bottom of the.

Moreover, in the above structure, the drying device 1
By connecting the return water device 38 to the portion on the back side of the air supply port 15 of the air supply duct 14 which is the air supply part of 6, the part of the drainage can be returned using the air supply part of the drying device 16. Therefore, the dedicated structure for returning a part of the drainage can be easily completed by only requiring the pipe joints 34, 35 and the connecting tubes 36, 37.

Further, at the bottom of the washing chamber 3, a return water device 38
As a guide part that diffuses part of the wastewater returned by
A large number of bulging portions 39 radially extending from a position immediately below the air supply port 15 are provided, whereby a part of the drainage returned by the water return device 38 is not limited to the other side in the cleaning chamber 3, Since the dirt can be flushed on one side as well, the dirt on both sides can be flushed, and in particular, the dirt can be more effectively removed by receiving the heat of the heater 5 and sticking to the bottom of the cleaning chamber 3. obtain.

In contrast to the above, FIG. 5 shows a second embodiment of the present invention. Instead of the return water device 38, the right side of the back surface of the inner box 2 which is the position of the other side with respect to one side of the cleaning chamber 3. A second water supply valve 40 is arranged on the upper part, and a connection pipe 42 branched from a water supply pipe 19 of the water supply device 20 by a pipe joint 41 is connected to the water supply valve 40, and the cleaning pipe 3 shown in FIG.
It shows the one provided with the second water supply device 43 for supplying water into the cleaning chamber 3 from the middle left side portion (right side portion in FIGS. 1 and 3). Every time the water is supplied, the water supply device (first water supply device) 20 in the right side portion (left side portion in FIGS. 1 and 3) in FIG.
Water is supplied by the second water supply device 43 at the left side in FIG. 2 (right side in FIG. 1, FIG. 3) at the same time. 3 It can be flowed not only on one side of the bottom part but also on the other side, and is not left.

6 and 7 show a third embodiment of the present invention, in which the cleaning chamber 3 is replaced with the second water supply device 43 described above.
In the inner part of the inside, there is shown the one provided with the ridge portion 44 as a guide portion which gradually descends from the portion immediately below the water supply port 17 to the portion of the air supply port 15. By doing so,
Since the water supplied by the water supply device 20 can be guided down to the position on the other side of the cleaning chamber 3 while flowing down into the cleaning chamber 3, dirt that has fallen off the dishes can still be washed from the bottom of the cleaning chamber 3. It can be flowed not only on one side but also on the other side and does not remain.

FIG. 8 shows a fourth embodiment of the present invention.
In place of all of the first to third embodiments, the water supply valve 18 of the water supply device 20 is set not only at each water supply before washing and before rinsing but also at the time of draining before the drying process (after the final rinsing). It is designed to be operated for a period of time (in the figure, the shaded area indicates that the electrical component is in the operating state). Since it is washed away, it can be prevented from receiving the heat of the heater 5 and sticking to the bottom of the cleaning chamber 3 during the subsequent drying.

It should be noted that the return destination of a part of the drainage by the water return device 38 of the first embodiment, the arrangement position of the second water supply valve 40 of the second embodiment, and the minimum of the guide portion 44 of the third embodiment. It suffices for the position of the part to be the position of the other side of the cleaning chamber 3 with respect to the position of the one side where the water supply valve 18 is arranged, and it may be the left side part of the cleaning chamber 3 when viewed from the front. It may be an appropriate position. Besides, the present invention is not limited only to the embodiments described above and shown in the drawings,
It can be implemented by appropriately changing it within a range not departing from the gist.

[0034]

The dishwasher of the present invention is as described above and has the following effects. First, a washing room,
A water supply device for supplying water into the cleaning chamber from a position deviated to one side of the cleaning chamber, a cleaning device for spraying water supplied into the cleaning chamber into the cleaning chamber to wash dishes, and a machine for cleaning water in the cleaning chamber. In those equipped with a drainage device that discharges to the outside,
By providing a return water device that returns a part of the drainage by the drainage device from the position on the other side with respect to the one side of the cleaning chamber to the cleaning chamber, not only the dirt dropped from the tableware on one side of the cleaning chamber bottom, It can also be flushed on the other side, leaving no residue.

Secondly, the washing device is provided with a drying device for supplying air to dry the dishes, and the return water device is connected to the air supply portion of the drying device to provide dirt dropped from the dishes. It is possible to eliminate the problem that the heater receives the heat of the heater during drying and sticks to the bottom of the cleaning chamber, and part of the drainage can be returned even by using the air supply part of the dryer, and a dedicated configuration for that Can be done easily.

Thirdly, since a guide portion for diffusing a part of the waste water returned by the water return device is provided at the bottom of the cleaning chamber, a part of the waste water returned by the water return device is washed. Not only the other side of the bottom of the chamber, but also one side can be washed away, the dirt on both sides can be washed away, and the dirt gets stuck to the bottom of the washing room under the heat of the heater. It can be eliminated more effectively.

Fourth, a washing chamber, a water supply device for supplying water into the washing chamber from a position offset to one side of the washing chamber, and water supplied into the washing chamber is sprayed into the washing chamber to wash dishes. And a drainage device for discharging the water in the cleaning chamber to the outside of the machine, wherein a second water supply device for supplying water into the cleaning chamber from a position on the other side with respect to one side of the cleaning chamber is provided. As a result, similarly to the first effect, the dirt dropped from the dishes can be flowed not only on one side of the cleaning chamber bottom but also on the other side, and can be flowed without being left behind.

Fifth, the washing chamber, a water supply device for supplying water into the washing chamber from a position offset to one side of the washing chamber, and water supplied into the washing chamber is sprayed into the washing chamber to wash dishes. A cleaning device for discharging the water in the cleaning chamber to the outside of the machine. In the cleaning chamber, the water supplied by the water supply device is allowed to flow into the cleaning chamber while the one of the cleaning chambers is provided. By providing the guide part that guides and flows down to the position on the other side with respect to the side, as in the first effect, the dirt dropped from the dishes flows not only on one side of the cleaning chamber bottom but also on the other side. It can be drained without leaving any residue.

Sixth, a washing chamber, a water supply device for supplying water into the washing chamber from a position offset to one side of the washing chamber, and water supplied into the washing chamber is sprayed into the washing chamber to wash dishes. In this case, the above-mentioned water supply device is operated even during drainage before the drying process so that the dirt dropped from the tableware is dried. Occasionally, the heat of the heater can be prevented from sticking to the bottom of the cleaning chamber.

[Brief description of drawings]

FIG. 1 is a rear perspective view of the internal configuration of an outer box showing the first embodiment of the present invention.

FIG. 2 is a perspective view from the front when the entire door is open.

[Figure 3] Rear view with the entire back plate removed

FIG. 4 is a perspective view of the bottom of the cleaning chamber.

FIG. 5 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 6 is a view corresponding to FIG. 2 showing a third embodiment of the present invention.

7 is a partially enlarged cross-sectional view taken along the line AA of FIG.

FIG. 8 is a time chart of operation contents showing the fourth embodiment of the present invention.

[Explanation of symbols]

3 is a cleaning room, 14 is an air supply duct (air supply part), 16 is a drying device, 17 is a water supply port, 20 is a water supply device, 28 is a cleaning device, 33 is a drainage device, 38 is a water return device, and 39 is an expansion device. An outlet (guide), 43 is a second water supply device, and 44 is a ridge (guide).

Claims (6)

[Claims] 1. A washing chamber, a water supply device for supplying water into the washing chamber from a position offset to one side of the washing chamber, and a washing for washing dishes by spraying the water supplied into the washing chamber into the washing chamber. A drainage device for draining the water in the cleaning chamber to the outside of the machine, wherein a part of the drainage by the drainage device is returned to the cleaning chamber from a position on the other side with respect to one side of the cleaning chamber. A dishwasher characterized in that. 2. A dishwasher according to claim 1, further comprising a drying device for supplying air into the washing chamber to dry the dishes, and a return water device is connected to an air supply portion of the drying device. Machine. 3. The dishwasher according to claim 1, wherein a guide part for diffusing a part of the drainage returned by the water return device is provided at the bottom of the washing chamber. 4. A washing chamber, a water supply device for supplying water into the washing chamber from a position offset to one side of the washing chamber, and a washing for washing dishes by spraying the water supplied into the washing chamber into the washing chamber. An apparatus and a drainage device for discharging water in the cleaning chamber to the outside of the machine, wherein a second water supply device for supplying water into the cleaning chamber from a position on the other side with respect to one side of the cleaning chamber is provided. And dishwasher. 5. A washing chamber, a water supply device for supplying water into the washing chamber from a position offset to one side of the washing chamber, and a washing for washing dishes by injecting the water supplied into the washing chamber into the washing chamber. An apparatus and a drainage device for discharging water in the cleaning chamber to the outside of the machine, wherein the water supplied by the water supply device is flown into the cleaning chamber while the water is supplied to the one side of the cleaning chamber. A dishwasher, characterized in that it is provided with a guide portion that guides it to the position on the other side and causes it to flow down. 6. A cleaning chamber, a water supply device for supplying water into the cleaning chamber from a position offset to one side of the cleaning chamber, and a cleaning process for spraying water supplied into the cleaning chamber into the cleaning chamber to wash dishes What is claimed is: 1. A dishwasher comprising a device and a drainage device for discharging water in a washing chamber to the outside of the machine, wherein the water supply device is operated even during drainage before a drying process.