KR100764333B1 - Washing device and dish washer having the same - Google Patents

Abstract

Cleaning means for cleaning the object to be cleaned in the cleaning tank; and detergent liquid scattering means for attaching a detergent liquid having a higher concentration than the washing water cleaned by the cleaning means to the object to be cleaned. It has a container, The container provides the cleaning apparatus which enclosed the liquid which delivers the vibration energy which generate | occur | produced from the oscillation oscillator, and the gas which moderates the raise of the internal pressure by volume expansion of a liquid. This configuration can alleviate the increase in the internal pressure and prevent damage to the container or vibration oscillator.

Description

WASHING DEVICE AND DISH WASHER HAVING THE SAME}

1 is a cross-sectional view of a dishwasher having a cleaning device according to a first embodiment of the present invention,

2 is an essential part cross-sectional view of the detergent liquid scattering means of the dishwasher provided with the washing apparatus shown in FIG. 1;

3 is an essential part cross sectional view of the detergent liquid scattering means of the dishwasher provided with the washing apparatus shown in FIG. 1;

4 is a perspective view of an essential part of a detergent liquid scattering means of the dishwasher provided with the washing apparatus shown in FIG. 1;

5 is a plan view of the detergent liquid scattering means of the dishwasher provided with the washing apparatus shown in FIG. 1;

6 is a sectional view of an essential part of a detergent liquid scattering means of the dishwasher provided with the washing apparatus according to the second embodiment of the present invention;

7 is a plan view of detergent liquid scattering means of the dishwasher provided with the washing apparatus shown in FIG. 6;

8 is a perspective view of a conventional dishwasher.

Explanation of symbols for the main parts of the drawings

3: washing tank 6: washing pump

7 injection hole 8 cleaning nozzle (cleaning means)

9: dish basket 10: heater

16: control device 18: detergent liquid scattering means

19: gas encapsulation 26: container

27: antifreeze (liquid) 28: air (gas)

29: ultrasonic oscillator (vibration oscillator) 30: oscillation surface

33: vibration transmission surface

The present invention relates to a washing apparatus for washing a to-be-washed object and a dish washer provided with the washing apparatus.

In the conventional dishwasher equipped with a washing apparatus, as shown in Fig. 8, in order to remove the dirt attached to the dish, the dishwashing water is sprayed onto the dish in advance by spraying the mist-like washing water, Clean using mechanical force or chemical force by detergent. An example of such a dishwasher is disclosed in Japanese Patent Laid-Open No. 2000-189375. The configuration will be described below.

The dishwasher main body 51 accommodates the dish basket (not shown) which accommodates a tableware in the washing tank 53, and the door 54 is provided in the opening part 52 of the washing tank 53. As shown in FIG. The nozzle 55 ejects the washing water stored in the washing tank 53 toward the dishware. The misting device 56 mists the washing water stored in the washing tank 53.

The operation | movement with respect to the dishwasher comprised as mentioned above is demonstrated below. First, dirty dishes are set in the dish basket, and operation starts. When the operation is started, first, the washing water stored in the washing tank 53 is misted by the misting device 56 and sprayed into the washing tank 53 to swell the dirt attached to the dishes and the like. Next, a dedicated detergent is put in, and this washing process which wash | cleans a tableware with the washing | cleaning liquid sprayed from the nozzle 55 is performed. Then, in order to wash off the dirt attached to the dishware from the dishware, a rinsing step of replacing the washing water in the washing tank 53 several times is performed. And the warm water rinse process which heated the replaced wash water to about 70 degreeC is performed, and washing | cleaning of a tableware is complete | finished. Finally, the drying process of drying the water droplets affixed to a tableware is performed, and operation is complete | finished.

However, in the case of using an ultrasonic vibration device for a misting device of a cleaning device such as a conventional dish washing machine, a container in which a liquid is sealed on the oscillation surface side of the vibration oscillator is used. In the structure having the container in which the oscillation oscillation surface of the oscillation oscillator is filled with the liquid, when used in a high temperature environment, since the liquid expands in volume and the internal pressure increases, there is a possibility that the vessel or the oscillator may be damaged. In addition, since gas is generated from inside the liquid by the rise of the liquid temperature, gas is deposited on the inner wall of the vibration transmission surface. As a result, there is a problem that the vibration energy generated from the vibration oscillator cannot pass through the gas, and the detergent of high concentration cannot be fogged. Moreover, when using in the environment of 0 degrees C or less, since a liquid freezes, there exists a subject that a volume expands and damages a container or a vibrating oscillator.

The cleaning apparatus of the present invention is provided with cleaning means for cleaning the object to be cleaned in the cleaning tank, and a detergent liquid scattering means for attaching a detergent liquid having a higher concentration than the washing water to be cleaned by the cleaning means to the object to be cleaned and the like. The scattering means has a vibrating oscillator and a container, and the container encloses a liquid for transmitting the vibration energy generated from the vibrating oscillator and a gas for alleviating the increase in the internal pressure due to the volume expansion of the liquid.

As a result, since the gas is enclosed with the liquid in the container, the internal pressure increase caused by the volume expansion of the liquid is alleviated by the gas to prevent damage to the container or the oscillating oscillator, and high cleaning performance can be obtained by scattering the stable detergent liquid. It is possible to provide a cleaning device that can.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described, referring drawings. In addition, the figure is a schematic diagram and does not represent each positional relationship correctly dimensionally. In addition, this invention is not limited by this Example.

(Example 1)

A first embodiment of the present invention will be described with reference to FIGS. 1 to 5. As shown in FIG. 1, FIG. 2, the main body 1 of the dish washing machine is provided with the opening part 2 in the front, and the opening part 2 is comprised so that the cover 4 can be closed. And the washing | cleaning nozzle 8 (cleaning means) which has the injection port 7 which injects the washing | cleaning water pressurized by the washing | cleaning pump 6 below the washing tank 3 is provided.

Above the washing nozzle 8, a dish basket 9 for storing dishes to be cleaned is provided. In the lower part of the washing tank 3, a heater 10 for heating washing water is disposed. Moreover, the roller 11 is arrange | positioned at the side wall of the dish basket 9, and the guide rail 12 is arrange | positioned at the inner side wall of the washing tank 3. As shown in FIG. The dish basket 9 is supported to be pulled out onto the lid 4 opened from the opening portion 2 in a substantially horizontal direction with respect to the main body 1.

The water supply valve 15 supplies the washing water to the washing tank 3. The control device 16 is provided inside the front panel and controls the washing pump 6, the heater 10, and the like. On the inner wall surface below the front surface of the washing tank 3, a recessed part 17 which is recessed outward is provided, and the storage part 20 which stores the detergent liquid scattering means 18 and the detergent liquid in the recessed part 17 is provided. It arrange | positions and it is set as the structure which covers the detergent liquid scattering means 18 and the upper part of the storage part 20 with the detergent injecting cover 21. As shown in FIG.

In addition, the detergent inlet cover 21 is provided with a detergent inlet 22 and a detergent inlet guide 23 for guiding the detergent smoothly to the detergent inlet 22. The detergent liquid scattering means 18 and the reservoir 20 are formed as a tank independent of the washing tank 3, and the washing water is washed through the cutout 24 formed in the detergent inlet cover 21. I communicate with (3). In addition, the fogged high concentration detergent is scattered into the cleaning tank 3 from the wall surface opening 25 provided on the side surface of the detergent inlet cover 21.

3 and 4, the detergent liquid scattering means 18 encloses the antifreeze (liquid) 27 in the container 26 and forms the gas encapsulation portion formed on the upper portion of the container 26. Air (gas) 28 is enclosed in 19, and the oscillation surface 30 of the ultrasonic oscillator (vibration oscillator) 29 is disposed on the lower surface of the container 26 in the direction toward the antifreeze 27, and the cover At 31, the packing 32 attached to the ultrasonic oscillator 29 is press-welded and watertight.

Gas 28 can be used if it is lighter than water and insoluble in water. Nitrogen gas is mentioned as an example.

The vessel 26 also has a gas encapsulation portion 19 for storing air 28 and a substantially planar vibration transmission surface 33 formed to face the oscillation surface 30 of the ultrasonic oscillator 29. have. The oscillation surface 30 of the ultrasonic oscillator 29 is disposed substantially parallel to the vibration transmission surface 33 of the container 26. In addition, the gas encapsulation part 19 is provided in the position higher than the vibration transmission surface 33, and the vibration transmission surface 33 is comprised with the inclined surface inclined upward so that it might become high toward the gas encapsulation part 19. Moreover, as shown in FIG. The antifreeze 27 in the container 26 fills the inner wall surface of the vibration transmission surface 33 and is sealed to a position higher than the vibration transmission surface 33 in the gas encapsulation portion 19.

In addition, as shown in FIG. 5, the shape of the vibration transmission surface 33 is made into the arbitrary substantially planar centering on the position which opposes the center A of the oscillation surface 30, and also the arbitrary substantially planar It is comprised so that the circumference may be enclosed in substantially U shape by the gas sealing part 19, and the area of the vibration transmission surface 33 is smaller than the area of an oscillation surface.

In addition, the height relationship of the detergent liquid scattering means 18 with respect to the washing tank 3 needs to be in a fixed range. In order to perform the misting, it is necessary to have a washing water on the vibration transmitting surface 33, and furthermore, the misting efficiency can be improved by setting the distance between the vibration transmitting surface 33 and the water surface within a predetermined range.

Next, operation | movement of the dishwasher provided with the washing | cleaning apparatus of this invention is demonstrated. First, a predetermined amount of detergent 36 (preferably detergent) is introduced into the reservoir 20 from the detergent inlet 22. Next, a predetermined amount of washing water is supplied from the water supply valve 15. At this time, the washing water is supplied by the control device 16 to be above the vibration transmission surface 33. At this time, the washing water not only enters the washing tank 3 but also penetrates into the detergent liquid scattering means 18 and the reservoir 20 from the cutout 24, and a part of the detergent starts to dissolve in the washing water. At this point, when the ultrasonic oscillator 29 is driven, the oscillation propagates the liquid 27 and is transmitted to the washing water through the vibration transmission surface 33. Then, the water column 34 is generated on the surface of the water, and the high concentration detergent liquid is fogged from the water column 34.

The generation of the high concentration detergent liquid is performed by dissolving the detergent in the detergent liquid and suppressing the diffusion of the high concentration detergent liquid to the washing water in the washing tank 3. First, regarding the concentration, for example, the storage volume of the detergent liquid scattering means 18 and the reservoir 20 is set to 1/50 of the water supply amount stored in the washing tank 3 as a whole, and a predetermined amount of detergent is added. In one case, a theoretically 50-fold concentration of detergent solution can be produced. However, since it is connected to the inside of the washing tank 3 by the notch part 24, detergent liquid density | concentration reduces a little by diffusion of detergent liquid. Therefore, in order to suppress the decrease in concentration, a passage 35 is provided to return to the inner wall of the detergent inlet cover 21 so that the water column 34 made of the high concentration detergent liquid does not flow directly into the washing tank 3, The high concentration detergent liquid is recovered to the storage unit 20.

By this structure, the flow of the water of the high concentration detergent liquid arises between the detergent liquid scattering means 18 and the storage part 20, and the detergent liquid concentration is prevented from falling and the dissolution of the detergent 36 is accelerated. In addition, since the washing water is also heated by energizing the heater 10 simultaneously with the misting operation, the dissolution of the detergent is promoted, and the detergent liquid concentration is further increased. In this way, the concentration of the high concentration detergent liquid is such that the concentration of the detergent liquid increases with the progress of the scattering of the detergent liquid. For this reason, first, the detergent liquid with a low concentration adheres to the contamination, the detergent liquid is fused to the dirt, and then the detergent liquid with a high concentration is adhered to the soil, thereby improving the permeability to contamination and improving the cleaning performance.

In addition, although the high concentration detergent liquid flows out from the cutout part 24 into the washing tank 3, the fall of the detergent liquid concentration is made to the minimum by restricting the flow amount by making the opening area of the cutout part 24 small. In addition, when the cleaning water is no longer above the vibration transmission surface 33, the generation of misting is also stopped and the detergent solution of high concentration is not scattered. Therefore, when driving the ultrasonic wave oscillator 29, the cleaning water must be the vibration transmission surface 33. The control device 16 controls the water supply valve 15 to be above. In addition, by optimizing the distance and relative angle of the vibration transmission surface 33 and the oscillation surface 30 and the distance from the vibration transmission surface 33 to the water surface, etc., the generation efficiency of fog can be improved. In addition, the vibration transmission surface 33 is an inclined surface because, when bubbles adhere to the inner wall of the vibration transmission surface 33, the vibration of the ultrasonic oscillator 29 becomes less likely to propagate to the vibration transmission surface 33. This is for moving the bubble to the gas encapsulation portion 19 along the inclined surface and dropping it from the center of vibration.

In addition, since the high concentration detergent liquid misted by the ultrasonic oscillator 29 has a fine particle diameter of about 3 microns, it does not convex to the upper part of the washing tank 3 as it is, but only floats near the water surface. However, in the configuration of the present invention, since the heater 10 (flow means) is energized at the same time as the misting operation, the washing water is heated, and convection of air in the washing tank 3 occurs due to the heat accompanying the temperature rise. . Then, the high concentration detergent liquid misted by the convection effect of air fills the inside of the washing tank 3 without gaps and adheres evenly to the surface of the tableware. In addition, since the chemical force is further increased by increasing the temperature of the fogged high concentration detergent liquid, the cleaning effect is remarkably improved.

In this manner, a high concentration of detergent liquid adhering to the contamination of the tableware is allowed to infiltrate and swell, and left for a certain time so as to obtain the effect of the detergent.

Next, the main washing step of driving the washing pump 6 to spray the dishes from the washing nozzle 8 is performed. In addition, since this washing process sprays the detergent liquid remaining in the reservoir 20 or the detergent liquid scattering means 18 in addition to the amount sprayed on the tableware or the like in the pretreatment process, the washing tank 3 is normally used. The washing is performed with washing water having a detergent concentration.

Then, after performing several rinsing steps of replacing the washing water of the washing tank 3, a heating rinsing step of rinsing with the high temperature washing water which was finally added to the temperature is executed to finish the washing process. In addition, the drying process of drying the last wash | cleaned tableware may be performed.

The effect of making detergent high concentration is as follows. Since the active agent, alkali agent or bleach, chelating agent, etc., which are the main components of the detergent, adhere to the contamination at a concentration higher than the conventional concentration, the cleaning liquid easily enters between the dirt and the tableware, the cleaning effect by alkali and the bleaching component. The bleaching effect by this can be exhibited remarkably. In the present cleaning step after the pretreatment step, the dirt after being decomposed by a high concentration detergent liquid in the pretreatment step can be reliably washed with the cleaning liquid having a normal detergent concentration, so that the dirt of the object to be cleaned can be reliably washed.

As described above, in the present embodiment, the cleaning performance can be significantly improved by having the pretreatment step in which the detergent liquid having a higher concentration is attached to the object to be cleaned than the detergent concentration in normal use by the detergent scattering means 18. . Further, by using this high cleaning power, it is possible to wash in a shorter time and to wash at a lower washing water temperature. In addition, the dirt which has not been removed conventionally can be cleaned.

Next, the operation and operation of the unique configuration of this embodiment will be described. The antifreeze 27 enclosed in the container 26 raises the liquid temperature when the ultrasonic oscillator 29 is operated or when the washing water temperature is increased by the operation of the dishwasher. Therefore, while the liquid expands in volume and generates gas from the inside of the liquid, the internal pressure in the container 26 increases, but the air 28 enclosed in the gas encapsulation 19 contracts, thereby minimizing the increase in the internal pressure. Suppress it. In this way, breakage of the ultrasonic oscillator 29 can be prevented, and liquid leakage from the packing 32 to the outside of the antifreeze 27 can be prevented.

In addition, when the air enclosed in the container 26 and the gas generated by the rise of liquid temperature accumulate on the inner surface of the vibration transmission surface 33, vibration energy may not be transmitted and it may not be fogged. In this embodiment, since the gas does not remain on the inner surface of the vibration transmission surface 33 but moves to the gas encapsulation portion 19 and is deposited, the inner surface of the vibration transmission surface 33 is always filled with an antifreeze 27. State can be maintained. Therefore, it is possible to stably transmit the vibration energy to the vibration transmission surface 33 to mist the detergent liquid.

In addition, the antifreeze 27 enclosed in the container 26 may not only raise the liquid temperature but also the container 26 or the packing 32 due to an increase in the ambient temperature even when the liquid is left without using a dishwasher. Since it permeates, the level of the encapsulating liquid in the container 26 decreases. As a countermeasure, it is only necessary to store the liquid in the container 26 that is larger than the liquid permeation amount outside the container 26. In the present invention, since the gas encapsulation portion 19 is configured to surround the vibration transmission surface 33 at a position higher than the vibration transmission surface 33, the volume of the gas encapsulation portion 19 can be made larger. And more liquid can be stored. For this reason, even if the liquid in a container decreases by long-term use, the inner wall surface of the vibration transmission surface 33 can be filled with a liquid, and it does not impair the mist function. Moreover, the container is comprised by resin shaping | molding, and the material which makes the permeation amount of a liquid as small as possible is selected. One example of this is PPS (polyphenylene sulfide).

In addition, by using the dishwasher, since the vibration transmission surface 33 is exposed to various contaminations (oil, protein, and other food materials), deposition of such contaminants cannot be avoided. However, by making it smaller than the area of the oscillation surface 30 and making the vibration transmission surface 33 inclined with respect to the water surface as in the present invention, contaminants in the cleaning liquid are deposited on the surface of the vibration transmission surface 33. At the same time, the amount of deposit can be reduced. As a result, reduction in the transmission efficiency of the vibration energy of the vibration transmission surface 33 due to deposition of contaminants can be prevented, and stable misting of the detergent liquid can be performed.

In addition, when the dishwasher is used or left in a cold district or the like, when water or the like is used in a liquid, it may freeze and expand in volume, and the container 26 or the ultrasonic oscillator 29 may be destroyed. However, by using an antifreeze liquid in the encapsulation liquid, freezing of the liquid is prevented, and the container 26 is not broken.

In this embodiment, an antifreeze is added as the encapsulating liquid, but any other liquid may be used as long as the liquid can propagate vibration such as brine. Moreover, although it consists of resin which is easy to vibrate as the vibration transmission surface 33, even if it consists of metal by the ability of the ultrasonic oscillator 29, there will be no problem as long as it oscillates.

Moreover, the inclination structure of the vibration transmission surface 33 demonstrated in this embodiment, the sealing liquid surface higher than the vibration transmission surface 33, the area of the oscillation surface 30, the shape of the gas sealing part 19, It is not necessary to satisfy all of the configurations in which an antifreeze is used for the liquid.

By carrying out at least one of these, the effects of the present invention can be obtained.

(Example 2)

6 and 7, the second embodiment of the present invention will be described.

6 and 7, the vibration transmission surface 37 has a concave cross-sectional shape on the side opposite to the oscillation surface in a substantially spherical shape. In addition, since the basic structure and operation | movement which implement the detergent liquid scattering means 18 are the same as Example 1, and the thing of the same code | symbol has the same structure, detailed description is abbreviate | omitted.

The operation and operation in the above configuration will be described. The misting phenomenon by the ultrasonic vibration is performed by transmitting high vibration energy near the center of the oscillation surface 30 to the surface of the water, but as the vibration energy generated toward the periphery of the oscillation surface 30 is accelerated, It cannot be used for fog. However, according to the configuration of this embodiment, the energy transmitted from the periphery of the vibration transmission surface 37 among the vibration energy transmitted through the vibration transmission surface 37 can be converged to the center side of the vibration surface 30. For this reason, since the misting ability can be improved also in the ultrasonic vibration of the same output, more high detergent liquids can be scattered and high washing | cleaning performance can be obtained.

Since the cleaning apparatus of the present invention and the dishwasher including the cleaning apparatus are usually sprayed with a high concentration of detergent liquid on the objects to be cleaned, such as dishware, washing is usually performed. Applicable

Claims (12)

A washing tank accommodating the object to be cleaned, Washing means for washing the object to be cleaned in the washing tank; Detergent liquid scattering means for attaching a detergent liquid having a higher concentration than the washing water to be washed by the washing means to be cleaned or the like; It has a storage part which stores a detergent liquid, The detergent liquid scattering means has a vibrating oscillator and a container, The container encloses a liquid for transmitting the vibration energy generated from the vibration oscillator and a gas for alleviating the increase in the internal pressure due to the volume expansion of the liquid, The container has a gas encapsulation portion for storing the gas, and a vibration transmission surface of a substantially planar shape formed to face the oscillation surface of the vibration oscillator, The gas encapsulation is provided at a position higher than the vibration transmission surface, The container is configured to fill the inner wall surface of the vibration transmission surface with the liquid and to seal the liquid to a position higher than the vibration transmission surface. The detergent liquid scattering means and the reservoir are formed in a tank independent of the cleaning tank, and the cleaning tank and the independent tank communicate with each other by a notch. Cleaning device. In the dishwasher provided with the washing | cleaning apparatus of Claim 1, The washing means has a washing pump for pressurizing the washing water, and a spray port for spraying the washing water pressurized by the washing pump. dish washer. delete delete delete The method of claim 2, The vibration transmission surface is inclined upward so as to be higher toward the gas encapsulation. dish washer. The method of claim 2, The vibration transmission surface is smaller than the area of the oscillation surface of the vibration oscillator dish washer. The method of claim 2, The gas encapsulation portion is configured to surround the vibration transmission surface dish washer. The method of claim 2, The vibration transmission surface concave the side opposite to the oscillation surface of the oscillation oscillator in a substantially spherical shape. dish washer. The method of claim 2, The vibration transmission surface is configured at a position lower than the surface of the washing water stored in the washing tank. dish washer. The method of claim 2, The vibration transmission surface is configured to be inclined with respect to the water surface of the washing water stored in the washing tank. dish washer. The method of claim 2, The liquid using an antifreeze dish washer.

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