KR100593109B1 - Dish washer - Google Patents

Abstract

The dishwasher is provided with a cleaning tank having an opening for dispensing the object to be cleaned, a cleaning nozzle for injecting the cleaning object to the object to be cleaned, and a cleaning agent disposed in the vicinity of the opening of the cleaning tank for misting a high concentration of detergent liquid in the cleaning tank. It has a mist generating part. By this configuration, a predetermined amount of detergent is reliably introduced into the mist generating portion, and the concentration of the detergent liquid to be misted is ensured. In addition, the detergent solution of higher concentration than the detergent concentration at the time of normal use adheres to the object to be cleaned, and the cleaning performance is greatly improved by the chemical force of the detergent of high concentration attached to the object to be cleaned.

Description

Dish Washer {DISH WASHER}             

1 is a longitudinal sectional view of a dish washer according to Embodiment 1 of the present invention;

2 is an enlarged cross-sectional view of an essential part of a mist generating unit in the dish washing machine of FIG. 1;

3 is a longitudinal sectional view of the dishwasher according to the second embodiment of the present invention;

4 is a longitudinal sectional view of the dishwasher according to the third embodiment of the present invention;

5 is a longitudinal sectional view of a conventional dish washer.

<Explanation of symbols for the main parts of the drawings>

2: cleaning tank 8: cleaning object

10: dish basket 15: mist generating unit

21: door

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a dishwasher for spraying washing water onto a wash object such as dishware, and more particularly, to a dishwasher having a pretreatment step of decomposing specific contamination by a high concentration detergent solution.

Conventionally, as a general dishwasher, for example, as disclosed in Japanese Patent Laid-Open No. 2003-210378, it is sprayed onto a to-be-cleaned object such as dishware while cleaning the detergent while dissolving the detergent. With reference to FIG. 5, the structure of a general dish washing machine is demonstrated. The dish washer main body 51 has a washing tank 52 therein, and the water supply valve 53 supplies water or hot water into the washing tank 52. Here, the supply of the washing water is set to an appropriate water level using a water level sensor (not shown), and the water supply from the water supply valve 53 is automatically stopped. The drain hole 54 is provided in the bottom part of the washing tank 52. The motor-driven washing pump 55 communicates with the drainage hole 54, and the washing pump 55 circulates the washing water into the washing tank 52. Further, a waste filter (hereinafter referred to as a filter) 56 for collecting the waste is provided in the drain hole 54.

The operation | movement is demonstrated below about the dishwasher comprised as mentioned above. The washing water supplied into the washing tank 52 passes through the filter 56 and is sucked into the washing pump 55, and a washing nozzle (hereinafter referred to as a nozzle) provided at the bottom of the washing tank 52 by the washing pump 55. 57 is supplied. The washing water jetted from the nozzle 57 circulates in the path of washing the object to be cleaned (tableware) 58 and then returning it to the drain hole 54 again. At this time, the dregs and the like removed from the object to be cleaned 58 flow into the filter 56 together with the washing water, and the dregs having a size that cannot pass through the filter 56 are collected in the filter 56.

In addition, a washing water heating heater 59 is provided between the nozzle 57 and the bottom of the washing tank 52. Above the nozzle 57, the dish basket 60 which arrange | positions the to-be-cleaned object 58 squarely and sprays wash water to the to-be-cleaned object 58 is provided, and washing is performed efficiently. In addition, the drain pump 61 discharges the washing water out of the washing machine. The control unit 62 drives and controls electrical components such as the water supply valve 53 and the cleaning pump 55.

However, in such a conventional configuration, not all the contamination can be cleaned. In particular, cleaning of dishes which are cooked by directly heating and pressing such as gratin or steamed dishes is troublesome.

As a solution to this, there is a method of performing a pretreatment step in which a detergent concentration of a higher concentration than the detergent concentration in normal use is attached to the object to be cleaned and left. As a result, the cleaning performance is greatly improved, and contamination of dishes that have not been eliminated conventionally is cleaned. Such dishwashers are disclosed in Japanese Patent Laid-Open No. 1993-184511, Japanese Patent Laid-Open No. 2000-189375, and the like.

Here, in order to make the high concentration detergent liquid into mist and adhere to the to-be-cleaned object, it is necessary to prepare a high concentration detergent liquid by putting a detergent into the mist generating part. In this publication, a mist generating unit is provided in a washing tank. And a pipe for supplying detergent to the mist generating unit is installed. As described above, in order to supply detergent to the mist generating unit, complicated piping is required, and only liquid detergent can be used. If the mist generating part is arranged away from the opening face of the cleaning tank without piping, the detergent may not be reliably added when the detergent is put into the mist generating part. Therefore, the detergent liquid does not become a predetermined concentration, and a significant improvement in the cleaning performance cannot be realized.

The dishwasher of this invention has a washing tank, a washing nozzle, and a mist generating part. The cleaning tank has an opening for dispensing the object to be cleaned. The cleaning nozzle is installed in the cleaning tank, and sprays the washing water onto the object to be cleaned. A mist generating part is arrange | positioned near the opening part of a washing tank, and mists the detergent solution of a high density | concentration into a washing tank. By this configuration, a predetermined amount of detergent is reliably introduced into the mist generating portion, and the concentration of the detergent liquid to be misted is ensured. In addition, the detergent solution having a higher concentration than the detergent concentration at the time of normal use adheres to the object to be cleaned, and the cleaning performance is greatly improved by the chemical force of the high concentration detergent attached to the object to be cleaned.

EMBODIMENT OF THE INVENTION Hereinafter, the Example of this invention is described, referring drawings. In addition, in each embodiment, the same code | symbol is attached | subjected about the part which performs the same structure and the same operation as the preceding embodiment, and detailed description is abbreviate | omitted.

(Example 1)

1 is a longitudinal sectional view of the dishwasher according to the first embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of the mist generating unit.

The dishwasher main body 1 has a washing tank 2 therein, and the water supply valve 3 supplies water or hot water into the washing tank 2. Here, the supply of the washing water is set to an appropriate water level using a water level sensor (not shown), and the water supply from the water supply valve 3 is automatically stopped. The drain hole 4 is provided in the bottom part of the washing tank 2. The motor-driven washing pump 5 communicates with the drainage hole 4, and the washing pump 5 circulates the washing water into the washing tank 2. Further, a waste filter 4 (hereinafter referred to as a filter) 6 for collecting the waste is provided in the drain hole 4. Moreover, the washing | cleaning water heating heater 9 is provided between the nozzle 7 and the bottom part of the washing tank 2. As shown in FIG. Above the nozzle 7, the dish basket 10 which arrange | positions the to-be-cleaned object 8 squarely and was comprised so that the wash water may be sprayed to the to-be-cleaned object 8 is provided, and washing | cleaning is performed efficiently. The dish basket 10 is accommodated in the washing tank 2 to receive the object to be cleaned 8. In addition, the drain pump 11 discharges the washing water out of the apparatus. The control part 12 drives and controls electric components, such as the water supply valve 3 and the washing | cleaning pump 5, for example. The object to be cleaned 8 is withdrawn from the opening 30.

Detergent liquid preparation part (hereinafter, preparation part) 13 is arrange | positioned in the washing tank 2 vicinity. More specifically, at the position along one side of the front end of the cleaning tank 2, the partition 14 is formed by blocking the space between the cleaning tank 2, and a part of the partition 14 is cut out to clean the cleaning tank 2. Communicating with Inside it, the mist generating part 15 for misting the detergent liquid prepared in the preparation part 13 is arrange | positioned. As shown in FIG. 2, the mist generating unit 15 has an ultrasonic vibrator (mist generating vibrator) 16 on the lower surface, and encloses the encapsulating liquid 17 above the vibration surface of the ultrasonic vibrator 16. It has a container 18. The surface opposite to the ultrasonic vibrator 16 of the container 18, that is, the mist generating surface 19, vibrates through a vibration transmitting material composed of the encapsulating liquid 17 and the container 18, thereby causing Mist the detergent solution. Moreover, the detergent injecting part 20 which introduces the washing detergent for preparing a detergent liquid in the preparation part 13 is arrange | positioned in the vicinity of the opening part 30 above the preparation part 13. As shown in FIG. That is, similarly to the preparation part 13, it is arrange | positioned in the position along one side of the front end part of the washing tank 2. As shown in FIG.

The operation | movement and an action | movement are demonstrated about the dishwasher comprised as mentioned above. When a predetermined amount of detergent 31 is introduced into the detergent injecting unit 20, the detergent 31 is introduced into the preparation unit 13. When the operation is started, the water supply valve 3 is opened to supply a predetermined amount of washing water. The washing water enters the preparation part 13 through the cutout of the partition 14 by the washing tank 2, and a part of the detergent 31 is dissolved in the washing water. When the ultrasonic vibrator 16 is driven at this point of time, the vibration propagates through the sealing liquid 17 and the container 18, and the mist generating surface 19 vibrates.

At this time, if the position of the mist generating surface 19 is arrange | positioned in the position where the vibration amplitude of the ultrasonic vibrator 16 becomes the largest, the mist generating surface 19 will vibrate large. This vibration causes the washing water on the upper surface to vibrate further, causing the washing water to mist. At the same time, the washing water also dissolves the detergent 31 set in the preparation unit 13, and a high concentration of the detergent liquid is scattered in the washing tank 2, and this high concentration of the detergent liquid adheres to the object to be cleaned 8. . Thus, since the preparation part 13 containing the mist generating part 15 is provided in the vicinity of the opening part 30, the powder detergent 31 is certainly introduce | transduced into the mist generating part 15. As shown in FIG. The detergent 31 may be a liquid.

In the pretreatment step of the washing step, as described above, the mist generating unit 15 scatters the detergent solution of high concentration in the washing tank 2, and attaches the detergent solution of high concentration to the object to be cleaned 8. Leave it in a state. Thereby, the high concentration detergent liquid chemically decomposes the contamination which adheres to the to-be-cleaned object 8.

In the present cleaning step after the pretreatment step, the conventional dishwasher is washed with respect to the contamination after the specific contaminant is decomposed by the high concentration detergent liquid in the pretreatment step. That is, the washing water supplied into the washing tank 2 passes through the filter 6 and is sucked into the washing pump 5, and the washing nozzle 5 is provided at the bottom of the washing tank 2 by the washing pump 5 (hereinafter, referred to as a washing tank 5). And nozzles) 7. The washing water injected from the nozzle 7 circulates in the path which returns to the drain hole 4 after washing the to-be-cleaned object (tableware) 8 again. At this time, the dregs etc. removed from the to-be-cleaned substance 8 flow into the filter 6 with washing water, and the dregs of the size which cannot pass through the filter 6 are collected by the filter 6.

In the contamination of the object to be cleaned 8, the temperature and the mechanical force (the intensity of the injection of the washing water from the nozzle 7) are very effective. In addition, contaminants decomposed in the pretreatment step cannot be cleaned by themselves alone, but need to be reliably cleaned by the same temperature or mechanical force. However, decomposition of contamination by neglect after adhesion of the high concentration detergent liquid in the pretreatment step is very effective for the kind of contamination that has not conventionally fallen off.

The detergent inlet part 20 is arrange | positioned above the preparation part 13 arrange | positioned along the front end part of the washing tank 2. As shown in FIG. In other words, the detergent inlet 20 is disposed at a position along one side of the front end of the cleaning tank 2. For this reason, when a user adds a detergent, a detergent can be added to the detergent injecting part 20 easily and reliably, and can be introduce | transduced into the preparation part 13. As a result, it is possible to reliably scatter a detergent liquid having a higher concentration than a predetermined concentration, that is, a detergent concentration at normal use, and adhere to the object to be cleaned without gaps. And the dishwasher which drastically improved the washing | cleaning performance is obtained by the chemical force of the high concentration detergent adhered to the to-be-cleaned object, and this main washing process after that.

Moreover, even if there is no detergent injecting part 20, and the structure which introduces detergent directly into the preparation part 13, the same effect is acquired.

(Example 2)

3 is a longitudinal sectional view of the dishwasher according to the second embodiment of the present invention. The door 21 has a rotational central axis approximately parallel to one side of the lower side of the opening 30 of the cleaning tank 2, and opens and closes the opening 30. The dish basket 10 for storing the object to be cleaned 8 is configured to be movable between the upper surface of the door 21 and the cleaning tank 2 with the door 21 open. In the front side of the dish basket 10, the detergent injecting part 22 is arrange | positioned in the position which opposes the preparation part 13 provided in the front end of the washing tank 2. As shown in FIG. The other configuration is the same as that of the first embodiment.

The operation | movement and an action | movement are demonstrated about the dishwasher comprised as mentioned above. When a predetermined amount of detergent is introduced into the detergent injecting unit 22, the detergent is introduced into the preparation unit 13 at a position facing the detergent injecting unit 22. Thereafter, by performing the same operation as shown in Example 1, a high concentration of detergent liquid is scattered in the washing tank 2, and this high concentration detergent solution adheres to the object to be cleaned 8. In the present cleaning step after the pretreatment step, the cleaning after the conventional dishwasher is performed on the contamination after the specific contamination is decomposed by the high concentration detergent liquid in the pretreatment step.

The detergent inlet 22 is provided at the front end of the dish basket 10. For this reason, when a user adds a detergent, a detergent is input to the detergent injecting part 22 easily and reliably, and is introduce | transduced into the preparation part 13. As a result, the detergent liquid having a higher concentration than the predetermined concentration, that is, the detergent concentration in normal use, is reliably scattered, and adheres to the object to be cleaned. And the dishwasher which drastically improved the washing | cleaning performance is obtained by the chemical power of the high concentration detergent adhered to the to-be-cleaned substance 8, and this main washing process after that.

In addition, when the detergent inlet 22 is integrated with other parts in the dish basket 10, for example, the small dish basket 23, etc., a more inexpensive dish washer is obtained, and the same effect is obtained.

(Example 3)

4 is a longitudinal cross-sectional view of the dishwasher according to the third embodiment of the present invention. On the inner surface side of the door 21, that is, on the cleaning tank 2 side, at the position opposite to the preparation section 13 provided at the front end of the cleaning tank 2, the detergent inlet unit integrally formed on the door 21 ( 24) is arranged. The other configuration is the same as that of the second embodiment.

The operation | movement and an action | movement are demonstrated about the dishwasher comprised as mentioned above. When a predetermined amount of detergent is introduced into the detergent inlet 24 and the door 21 is closed, detergent is introduced into the preparation unit 13 at a position facing the detergent inlet 24. Thereafter, by performing the same operation as that shown in Example 1, a high concentration detergent liquid is scattered in the washing tank 2, and this high concentration detergent liquid adheres to the object to be cleaned 8. In the present cleaning step after the pretreatment step, the conventional dishwasher is washed with respect to the contamination after the specific contamination is decomposed by the high concentration detergent liquid in the pretreatment step.

Since the detergent inlet 24 is arranged on the upper surface side when the door 21 is opened, when the user injects detergent, the detergent can be easily and reliably introduced into the detergent inlet 24. It can introduce into the preparation part 13. Thereby, the detergent liquid of a higher concentration than a predetermined density | concentration, ie, the detergent concentration at normal use, reliably scatters, and adheres to the to-be-cleaned object seamlessly. And the dishwasher which drastically improved the cleaning performance is obtained by the chemical force of the high concentration detergent adhered to the to-be-cleaned object 8, and this main washing | cleaning process after that. The timing at which the user puts the detergent may be either before or after setting the object to be cleaned 8 in the dish basket 10, and a dishwasher which is convenient for use is obtained. Moreover, since the detergent inlet part 24 is comprised integrally with the door 21, a cheaper dishwasher is obtained.

As described above, the dishwasher according to the present invention ensures the concentration of the detergent liquid to be misted by reliably introducing a predetermined amount of detergent into the mist generating portion. In addition, a detergent solution of higher concentration than the detergent concentration in normal use adheres to the object to be cleaned. As a result, the cleaning performance can be greatly improved by the chemical force of a high concentration of detergent attached to the object to be cleaned, and thus it is useful as a dish washer or the like for cleaning by spraying the washing water onto the object to be cleaned. In particular, it is suitable when using a powder detergent.

Claims (9)

In the dishwasher, A washing tank having an opening for entering and leaving the object to be cleaned, A cleaning nozzle installed in the cleaning tank for injecting washing water into the object to be cleaned; It is disposed in the vicinity of the opening of the cleaning tank, and provided with a mist generating portion for misting the detergent liquid in the cleaning tank, adhered to the object to be cleaned to chemically decontaminate the contamination.      Dishwasher. The method of claim 1, The mist generating unit is disposed at a position along one side of the front end of the cleaning tank Dishwasher. The method of claim 1, Further comprising a detergent inlet for introducing a cleaning detergent for preparing the detergent liquid in the mist generating unit Dishwasher. The method of claim 3, wherein The detergent inlet is disposed near the opening Dishwasher. The method of claim 3, wherein The detergent inlet is disposed above the mist generating unit Dishwasher. The method of claim 3, wherein A dish basket accommodated in the cleaning tank and containing the object to be cleaned; The detergent inlet unit is provided at a position opposite to the mist generating unit in the dish basket. Dishwasher. The method of claim 3, wherein It further comprises a door having a rotational central axis parallel to one side of the opening, the opening and closing of the opening, The detergent inlet unit is provided at a position opposite to the mist generating unit on the inner surface side of the door. Dishwasher. The method of claim 1, It further has a detergent solution preparation unit for preparing the detergent solution, The detergent liquid is prepared by the powder detergent introduced into the detergent liquid preparation portion and the washing water introduced into the detergent liquid preparation portion. Dishwasher. The method of claim 8, The detergent solution preparation unit includes the mist generating unit Dishwasher.

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