JP4079912B2 - Dishwasher - Google Patents

Description

The present invention relates to a dishwasher provided with a mist generation equipment to atomize the liquid by the mist generating vibrator.

  A conventional general dishwasher is configured as shown in FIG. Hereinafter, the configuration will be described.

  As shown in FIG. 7, the dishwasher 1 is provided with a washing tank 2 inside, and is configured to supply water or hot water into the washing tank 2 by a water supply valve 3. A cleaning pump 5 driven by a motor is provided in communication with a drain hole 4 provided at the bottom of the cleaning tank 2, and the cleaning water is circulated inside the cleaning tank 2 by the cleaning pump 5. ing. In addition, a residue filter 6 for collecting residue is installed in the drain hole 4.

  The cleaning water supplied into the cleaning tank 2 passes through the residual filter 6 and is sucked into the cleaning pump 5 and is supplied from the cleaning pump 5 to the cleaning nozzle 7 disposed at the inner bottom of the cleaning tank 2. The washing water sprayed from the washing nozzle 7 circulates along a route that returns to the drain hole 4 again after washing the object (tableware) 8 to be washed. At this time, the residue or the like dropped off from the object to be cleaned 8 flows into the residue filter 6 together with the washing water, and the residue having a size that cannot pass through the residue filter 6 is collected by the residue filter 6.

In addition, a heater 9 for heating the cleaning water is provided between the cleaning nozzle 7 and the bottom of the cleaning tank 2, and the object to be cleaned 8 can be arranged in an orderly manner above the cleaning nozzle 7, so that the cleaning water is effectively used. A table basket 10 configured to be sprayed onto the object to be cleaned 8 is installed so as to perform efficient cleaning. Further, the drainage pump 11 is configured so that the washing water can be discharged out of the machine through the drainage hose 12. Furthermore, the control means 12 is configured to drive and control electrical components such as the water supply valve 3 and the cleaning pump 5 (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 2003-210378

  However, the dishwasher configured as shown in FIG. 7 has a limitation that it is not always possible to reliably wash all dirt adhering to the object 8 to be cleaned. In particular, they were not good at cleaning dishes that were directly heated and cooked, or dishes that were burnt. For example, gratin, chawanmushi, etc.

  As a solution to this problem, it is conceivable to execute a pretreatment step in which a detergent solution having a concentration higher than that of normal use is adhered to the object to be cleaned 8 and left to stand. By carrying out such a pretreatment step, the cleaning performance can be greatly improved, and dishes that could not be removed conventionally can also be cleaned.

  However, for example, when a mist generating device having an ultrasonic vibrator for generating mist is used to attach a detergent solution of high concentration to the object to be cleaned, the food contained in the washing water of the dishwasher 1 As a result of the deposition of inorganic components from hard water with high hardness such as well water, these foreign substances adhere and solidify on the vibration surface of the ultrasonic vibrator, and as a result, affect the operation of the ultrasonic vibrator. There is a problem that a significant decrease in the amount of atomization occurs, and in a severe case, the ultrasonic vibrator itself fails and becomes inoperable.

The present invention solves the above-described problems, prevents foreign matter from directly adhering to the surface of the fog generating vibrator and solidifies it, affects the operation of the fog generating vibrator, and reduces the amount of atomization. It is equipped with a mist generation device that prevents the occurrence of problems such as a significant drop in mist and malfunctions due to failure of the mist generating vibrator, and stable generation of mist even in dirty cleaning water. The first object of the present invention is to provide a dishwasher capable of atomizing a high-concentration detergent solution stably in a tank and improving the washing performance even in a dishwasher having a lot of dirt such as food .

Mist generation device of the present invention includes: a cleaning tank having an opening for loading and unloading the object to be cleaned, and fog generation vibrator for atomizing the detergent solution in the cleaning tank, the plane of vibration of the mist generation vibrator a container liquid body is sealed to the upper side, and a detergent supply part on the outside of the container, the container is a surface facing the mist generation vibrator via the liquid is formed into a thin film, and wherein it is formed a protruding portion protruding upward from the film, fog liquid for atomization of the container outer via line between the liquid film at the ultrasonic vibration generated by the mist generation vibrator It is made to become.

According to this configuration, it is possible to prevent foreign matter from directly adhering to the surface of the fog generating vibrator and solidifying it, affecting the operation of the fog generating vibrator and causing a significant decrease in the amount of atomization. Therefore, it is possible to prevent the occurrence of a problem that the fog generating vibrator fails and does not operate, and the fog can be stably generated even in a dirty atomizing liquid. Moreover, the ultrasonic vibration output from the fog generating vibrator can efficiently atomize the atomizing liquid outside the container through the liquid and the thin film, and generate the fog efficiently and stably. be able to. In addition, by driving the fog generating vibrator, the cleaning water is vibrated to atomize the cleaning water, and the detergent set in the detergent charging part dissolves, so that a high-concentration detergent liquid is scattered in the cleaning tank. A high-concentration detergent solution can be adhered to an object to be cleaned.

  Further, if the container is made of a material with low permeability of the liquid sealed inside and low absorption of ultrasonic waves, the amount of liquid sealed in the container can be reduced to the outside through the container even in long-term use. There is no need to refill the filled liquid. Further, by using a material that absorbs less ultrasonic waves, the container is not dissolved by the ultrasonic waves themselves, and atomization can always be stably generated.

  Further, the thickness of the thin film formed on the surface of the container facing the fog generating vibrator is set to a thickness in the vicinity of ½ of the wavelength when the ultrasonic vibration generated by the atomization generating vibrator propagates through the container. If set to, the transmittance of the ultrasonic vibration is maximized, and the atomization amount can be maximized.

  In addition, when the thin film formed on the surface of the container facing the mist generating vibrator is composed of a recess formed on the surface of the container facing the mist generating vibrator, the container is made of a resin having poor fluidity. However, a thin film with good dimensional accuracy can be formed easily and stably, and stable atomization can always be generated without dissolving the container by the ultrasonic wave itself by absorbing the ultrasonic wave.

  In addition, if the concave portion is formed on the surface side in which the liquid is sealed, the outer surface of the container becomes smooth, and accumulation of foreign matters such as calcite that may occur when the concave portion is provided outside the container is prevented, so that stable atomization always occurs. It can be carried out.

In addition, if the concave portion is formed by compression molding in the thickness direction on the surface facing the fog generating vibrator after resin injection during the injection molding process of the container, the dimensions are maintained even when the container is made of resin with poor fluidity. An accurate thin film can be formed more easily and stably, and stable atomization can always be generated without dissolving the container with the ultrasonic wave itself by absorbing the ultrasonic wave.

  In addition, when the thin film formed on the surface of the container facing the mist generating vibrator is hermetically covered with a sheet-like resin at the opening formed on the surface facing the mist generating vibrator, the container is made fluid. Even if it is made of a poor material, a thin film with good dimensional accuracy can be stably formed by the sheet-like resin, and stable atomization always occurs without dissolving the container by the ultrasonic wave itself due to absorption of the ultrasonic wave It can be performed.

  Moreover, the dishwasher of this invention is equipped with the said fog generating apparatus, and atomizes the washing water which wash | cleans tableware etc.

  According to this configuration, the high-concentration detergent liquid can be stably atomized by the atomization generator even in the very dirty cleaning water in the cleaning tank with a lot of dirt such as food. Therefore, it is possible to disperse the detergent solution with a higher concentration than that during normal use and evenly adhere to the object to be cleaned. The cleaning performance can be greatly improved by the chemical power of the high-concentration detergent adhered to the object to be cleaned, and the dish stains that could not be removed conventionally can be cleaned. Moreover, it can operate stably even in the washing water in the washing tub of a dishwasher with a lot of dirt such as food, and the above effects can be stably achieved over a long period of time.

The dishwasher of the present invention can prevent the foreign matter from directly adhering to the surface of the fog generating vibrator and solidifying it, affecting the operation of the fog generating vibrator and significantly reducing the amount of atomization. Or a problem that the mist generating vibrator fails and does not operate can be prevented, and stable mist generation can be performed even in a dirty atomizing liquid.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited to the following embodiment.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. In addition, the whole structure of the dishwasher 1 is the same as the prior art example demonstrated with reference to FIG. 7, and the thing of the same structure attaches | subjects the same code | symbol and abbreviate | omits description.

In the dishwasher 1 of this embodiment, the fog generator 13 is arrange | positioned under the front surface of the washing tank 2 as shown in FIG. As shown in FIG. 2, the mist generating device 13 has a mist generating vibrator 14 composed of an ultrasonic vibrator disposed on the lower surface, and a container 16 in which an encapsulated liquid 15 is sealed is integrally joined above the vibrating surface. The surface of the container 16 facing the ultrasonic transducer 14 is constituted by a thin film 17. Thus, the thin film 17 of the container 16 is vibrated through the sealed liquid 15 by the ultrasonic vibration generated by the fog generating vibrator 14 so that the atomizing liquid (washing water) outside the container 16 is atomized. It is configured. The sealed liquid 15 is distilled water. The shape of the container 16 is such that the encapsulated liquid 15 is also in contact with the thin film 17 so that the encapsulated liquid 15 is always in contact with the thin film 17 even if the encapsulated liquid 15 is reduced by water vapor permeation through the wall surface of the container 16. It is shaped to fit.

  Here, the container 16 is made of a material having low water vapor permeability and low ultrasonic absorption. The optimum material may be unfilled polyphenylene sulfide. The thickness of the thin film 17 constituting the surface of the container 16 facing the fog generating vibrator 14 is the wavelength at which the ultrasonic vibration generated by the atomization generating vibrator 14 propagates through the wall of the container 16. Is set to a thickness in the vicinity of 1/2. In the case of unfilled polyphenylene sulfide, it is around 0.5 mm. Further, a detergent charging unit 18 for placing the detergent around the thin film 17 is disposed so that a high-concentration detergent solution is generated on the upper part of the thin film 17 facing the fog generating vibrator 14.

  Next, the operation and action of the above configuration will be described. In the mist generating device 13, the container 16 in which the sealed liquid 15 is sealed is disposed above the mist generating vibrator 14, so that the mist generating vibrator 14 is not in direct contact with the cleaning water. Accordingly, even when the dishwasher 1 is operated, the mist generating vibrator 14 does not come into contact with the very dirty cleaning water, so that the food becomes sludge and is on the vibration surface of the mist generating vibrator 14. It can prevent adhesion and solidification. As a result, the fog generating vibrator 14 can be stably operated without failure.

  In addition, even if the fog generator 13 does not handle very dirty washing water like the dishwasher 1, when using water with very high hardness such as well water, the inorganic matter is deposited, It adheres to the vibration surface of the fog generating vibrator 14. Therefore, even in the case where simple water is used, in some cases, an inorganic component may adhere to the surface of the fog generating vibrator 14 and solidify, which may affect its operation. By doing so, such a phenomenon can be prevented, and the original target liquid can be atomized stably over a long period of time. Therefore, the present invention is very effective in a device that performs atomization using the fog generating vibrator 14 formed of an ultrasonic vibrator.

  Since the surface facing the fog generating vibrator 14 is constituted by the thin film 17, the permeability of the ultrasonic vibration is improved, the atomizing liquid can be efficiently atomized, and the cleaning performance is improved. be able to. Further, since the surface facing the fog generating vibrator 14 is configured by the thin film 17, it is possible to reduce the absorption of ultrasonic vibration energy by the container 16, and to prevent the thin film 17 from being dissolved by the ultrasonic wave. it can.

  Further, since the container 16 is made of a material having low water vapor permeability and low ultrasonic absorption, the amount of liquid 15 sealed in the container 16 can be transmitted to the outside through the container 16 even when used for a long time. There is no need to replenish the sealed liquid 15. Further, since the container 16 is made of a material that absorbs less ultrasonic vibration, the container 16 is not dissolved by the ultrasonic vibration itself, and stable atomization can always be generated.

  The thickness of the thin film 17 facing the fog generating vibrator 14 of the container 16 is set to the wavelength at which the ultrasonic wave generated by the atomization generating vibrator 14 propagates through the thin film 17 facing the fog generating vibrator 14. Since the thickness is set to about ½, the maximum value of the transmittance of the thin film 17 facing the ultrasonic mist generating vibrator 14 can be obtained, so that the amount of atomization can be maximized. .

Next, the operation of the dishwasher 1 will be described. First, when a predetermined amount of detergent is put into the detergent charging unit 18 and the operation is started, the control unit 12 opens the water supply valve 3 to supply a predetermined amount of water. At this time, the control means 12 sets and controls the feed water level so as to be above the detergent charging unit 18.

  The washing water enters the inside of the detergent charging unit 18 and a part of the detergent is dissolved in the washing water. At this time, when the fog generating vibrator 14 is driven, the vibration propagates through the sealed liquid 15 and vibrates the thin film 17 on the surface facing the fog generating vibrator 14 via the sealed liquid 15. At this time, if the thin film 17 facing the fog generating vibrator 14 is arranged at a position where the vibration amplitude of the fog generating vibrator 14 is maximized, the thin film 17 facing the fog generating vibrator 14 is arranged. Can be vibrated greatly.

  By this vibration, the cleaning water on the upper surface is further vibrated to atomize the cleaning water, and at the same time, the detergent set in the detergent charging unit 18 is melted, so that a high-concentration detergent solution is scattered in the cleaning tank 2 and this high concentration The detergent liquid can be adhered to the object 8 to be cleaned. If there is no washing water above the thin film 17 facing the mist generating vibrator 14, the generation of atomization naturally stops and the high-concentration detergent liquid does not scatter, so the mist generating vibrator 14 is driven. When the water supply valve 3 is in use, the water supply valve 3 is controlled by the control means 12 so that the cleaning water is always above the thin film 17.

  As a pretreatment process of the cleaning process, as described above, the high-concentration detergent liquid is scattered in the cleaning tank 2 from the mist generating device 13, and this high-concentration detergent liquid is adhered to the object 8 to be cleaned. By leaving it for a long time, the dirt adhering to the object 8 to be cleaned is chemically decomposed by the high-concentration detergent solution.

  In the main cleaning process after the pretreatment process, the conventional dishwasher is cleaned with respect to the dirt after the specific dirt is decomposed by the high-concentration detergent solution in the pretreatment process.

  In the dirt of the article 8 to be cleaned, there are some cases where the temperature and mechanical force (the momentum of jetting the washing water from the washing nozzle 7) are extremely high. In addition, dirt that has been decomposed in the pretreatment process cannot be cleaned by itself, and it can be reliably cleaned by temperature and mechanical force. However, the decomposition of the dirt by leaving it after the high-concentration detergent solution is attached in this pretreatment process is very effective for the kind of dirt that could not be removed in the past.

  As described above, the fog generating device 13 of the present embodiment is configured to atomize the cleaning water (the liquid for atomization) outside the container 16 via the sealed liquid 15 and the container 16, so that the vibration for generating fog is generated. It is possible to prevent foreign matter from directly adhering to the surface of the child 14 and solidifying, affecting the operation of the fog generating vibrator 14 to cause a significant decrease in the amount of atomization, or the fog generating vibrator 14. It is possible to prevent the occurrence of problems such as failure and failure of operation, and stable atomization can be performed even in dirty cleaning water.

  Moreover, in the dishwasher 1 of this embodiment, since the said mist generation device 13 was provided and the washing water which wash | cleans tableware etc. was atomized, the emergency in the washing tank 2 with much dirt, such as a foodstuff, is carried out. A highly concentrated detergent solution can be atomized stably even in dirty cleaning water, and the fog generator 13 scatters the detergent solution at a concentration higher than the detergent concentration during normal use, so that it can be cleaned evenly. Since it can be adhered to the object 8, it is possible to execute a pretreatment process in which a high concentration detergent solution is adhered to the object 8 to be cleaned and left to stand. Since the cleaning performance can be greatly improved by the force, it is possible to clean the dish stains that could not be removed conventionally. Further, the surface facing the fog generating vibrator 14 is constituted by the thin film 17, and the thin film 17 opposed to the fog generating vibrator 14 is dissolved by the ultrasonic wave itself by constituting the material with less ultrasonic absorption. I will not let you.

  In this embodiment, an example in which distilled water is added as the sealed liquid 15 is shown, but there is no particular problem as long as it is a liquid that can propagate vibrations such as salt water or an aqueous polypropylene glycol solution.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. In the following description of the embodiments, components that are the same as those in the preceding embodiment are denoted by the same reference numerals, description thereof is omitted, and only differences are mainly described.

  In the present embodiment, as shown in FIG. 3, a concave portion 19 is formed on the surface of the mist generating device 13 facing the mist generating vibrator 14 of the container 16 to constitute the thin film 17. The concave portion 19 is formed on the surface side in which the liquid 15 is sealed. Further, the recess 19 is formed by compressing a part of the surface facing the fog generating vibrator 14 in the thickness direction after resin injection when the container 16 is injection molded.

  According to this configuration, since the thin film 17 is formed by forming the concave portion 19 on the surface of the container 16 facing the fog generating vibrator 14, even if the container 16 is molded with a resin having poor fluidity, A portion through which ultrasonic vibration is transmitted can be formed thinner, absorption of ultrasonic waves can be reduced, and stable atomization can always be generated without dissolving the container 16 with the ultrasonic waves themselves.

  In addition, by providing the concave portion 19 on the surface of the container 16 facing the mist generating vibrator 14 on the surface side in contact with the sealed liquid 15, foreign matter such as galquis caused by providing the concave portion 19 outside the container 16 is provided. Accumulation can be prevented and stable atomization can always be generated.

  Further, since the concave portion 19 is provided on the surface of the container 16 facing the fog generating vibrator 14, when the container 16 is injection-molded, a part of the surface facing the fog generating vibrator 14 is thickened after the resin is injected. By forming by compressing in the direction, a thin film can be formed even with a resin material with poor fluidity, there is little absorption of ultrasonic waves, and stable atomization is always generated without dissolving the container 16 with the ultrasonic waves themselves. be able to.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG.

  In the present embodiment, as shown in FIG. 4, an opening 16 a is formed on the surface of the mist generating device 13 facing the mist generating vibrator 14 of the container 16, and the opening 16 a is hermetically sealed with a sheet-like resin 20. The thin film 17 is configured by the sheet-like resin 20.

  According to this configuration, the opening 16a is formed on the surface of the container 16 facing the fog generating vibrator 14, and the opening 16a is hermetically covered with the sheet-like resin 20 to form the thin film 17. Even if the container 16 is molded with a resin having poor fluidity, a thin film 17 that can easily transmit ultrasonic waves can be formed on the surface of the container 16 that faces the fog generating vibrator 14, and the thin film 17 is absorbed by the ultrasonic waves. By forming the sheet-like resin 20 with a small amount, stable atomization can always be generated without dissolving the container 16 with the ultrasonic wave itself.

( Reference example )
Next, reference examples of applying the mist generating device to the washing machine, FIG. 5 will be described with reference to FIG.

In the washing machine 21 of the present reference example , as shown in FIG. 5, a fog generating device 22 is disposed inside the main body of the washing machine 21. As shown in FIG. 6, the mist generating device 22 has a mist generating vibrator 23 made of an ultrasonic vibrator disposed on the lower surface, and a container in which a sealed liquid 24 is sealed above the vibration surface of the mist generating vibrator 23. 25, the thin film 26 provided on the surface of the container 25 facing the ultrasonic transducer 23 is vibrated through the sealed liquid 24, and the atomizing liquid (washing water) outside the container 25 is atomized. is doing.

  Further, a detergent feeding part 27 for feeding detergent on the upper surface of the thin film 26 facing the fog generating vibrator 23 is configured. The thin film 26 facing the fog generating vibrator 23 is made of a resin that easily vibrates, and has an inclined surface. The sealed liquid 24 is distilled water.

  The operation and action of the above configuration will be described. First, the configuration and operation of a general washing machine 21 will be described. In the washing process, when clothes (laundry) are put into the inner tub 28 and the operation is started, the water supply valve 29 is opened to supply water to a predetermined water level, and then the motor 30 is driven. At this time, the power of the motor 30 is transmitted to the rotary blade 31 via the washing shaft, the rotary blade 31 is rotated, the clothes are stirred and washed in the water, and then the drain valve 32 is opened to drain the water. Water again and rinse clothes as in the washing process.

  In the dehydration process, after rinsing is completed, the drain valve 32 is opened to drain the water in the inner tank 28, and then the power of the motor 30 is transmitted to the inner tank 28 via the dehydrating shaft and rotated to apply centrifugal force to the clothes. Dehydration is performed by separating moisture from clothing.

  In contrast to the above general operation of a washing machine, this embodiment has a washing pretreatment process. The detergent charging lid 33 is opened, the detergent is previously charged, and the detergent charging lid 33 is closed. When clothes (laundry) are put into the inner tub 28 and operation is started, tap water (washing water for washing) is supplied from the water supply valve 29 to the detergent charging unit 27. The water supply time is set so that the tap water is almost full in the detergent charging unit 27. Here, even if there is a lot of tap water, it overflows from the detergent charging unit 27 and the water level becomes constant. Some of the detergent is starting to melt at this point.

  At this time, when the fog generating vibrator 23 is driven, the vibration propagates through the sealed liquid 24, and the thin film 26 facing the fog generating vibrator 23 of the container 25 is vibrated through the sealed liquid 24. At this time, if the position of the thin film 26 facing the fog generating vibrator 23 is arranged at a position where the vibration amplitude of the fog generating vibrator 23 is maximized, the thin film 26 facing the fog generating vibrator 23 is arranged. Can be vibrated greatly.

  By this vibration, the washing water on the upper surface is further vibrated to atomize the washing water, and at the same time, the detergent set in the detergent charging unit 27 is dissolved, and the detergent liquid of high concentration contained in the washing water for washing is dissolved. Scatter.

  The washing water for washing containing the atomized detergent, in other words, the high-concentration detergent liquid scatters in the inner tub 28, and the mist-like high-concentration detergent liquid adheres to the clothing. By leaving it in that state for an appropriate period of time, the high-concentration detergent solution chemically decomposes the dirt adhering to clothes and the like. After that, normal washing to dehydration are performed.

  Since the other operations of the fog generating device 22 are the same as those in the first embodiment, description thereof is omitted. However, in this embodiment, atomization is performed on the supplied water instead of the very dirty cleaning water. However, as described above, even when well water such as well water is used, the inorganic matter is deposited and adheres to the vibration surface of the fog generating vibrator 23. Therefore, even in this case, it is effective to use the mist generation device 22 of the present embodiment, and the original target liquid can be atomized stably over a long period of time.

As described above, in the washing machine 21 of the present embodiment, the mist generating device 22 is provided to atomize the washing water for washing, so that stable mist generation is performed even in the washing water for washing. The mist generating device 22 can perform a pretreatment process in which a detergent solution having a concentration higher than that of normal detergent is uniformly adhered to the laundry and left to stand. The cleaning performance can be greatly improved by the chemical power of the detergent.

  In the present embodiment, the mist generating device 22 is disposed inside the main body of the washing machine 21 so that water is supplied from the water supply valve 29 to the detergent charging unit 27. However, the mist generating device 22 includes the inner tub 28. The washing water for washing in the outer tub 34 is put into the detergent charging unit 27 to make a high-concentration detergent liquid, and the high-concentration detergent liquid is atomized to enter the inner tub 28. You may comprise so that it may scatter and adhere to clothing, and the same effect | action and effect can be acquired.

As described above, the onset Ming can directly foreign matter on the surface of the mist generating vibrator is prevented from being solidified to adhere, the atomization amount affects the operation of the mist generating vibrator Since it can prevent the occurrence of problems such as a significant drop or failure of the mist generating vibrator to malfunction, stable mist generation can be performed even in a dirty atomizing liquid. It can be suitably applied to a dishwasher, and its washing performance can be greatly improved.

It is sectional drawing of the dishwasher of the 1st Embodiment of this invention. It is a longitudinal cross-sectional view of the fog generator of the dishwasher. It is a longitudinal cross-sectional view of the fog generator in the 2nd Embodiment of this invention. It is a longitudinal cross-sectional view of the fog generator in the 3rd Embodiment of this invention. It is sectional drawing of the washing machine of the reference example of this invention. It is a principal part expanded sectional view of the washing machine. It is a longitudinal cross-sectional view of the conventional tableware washing machine.

Explanation of symbols

1 Dishwasher 2 Washing tank 8 Object to be cleaned (tableware)
13 Mist generator 14 Mist generator (ultrasonic transducer)
DESCRIPTION OF SYMBOLS 15 Filled liquid 16 Container 16a Opening part 17 Thin film 19 Recessed part 20 Sheet-like resin 21 Washing machine 22 Fog generating device 23 Fog generating vibrator (ultrasonic vibrator)
24 Filled liquid 25 Container 26 Thin film

Claims (7)

A cleaning tank having an opening for loading and unloading the object to be cleaned, and fog generation vibrator for atomizing the detergent solution in the cleaning tank, the liquid material is sealed to the upper side of the vibrating surface of the mist generation vibrator and container, and a detergent supply part on the outside of the container, the container is a surface facing the mist generation vibrator via the liquid is formed into a thin film, and protrudes upward from the film and the protrusion is formed to, characterized in that so as to atomize the liquid for atomization of the container outer through said thin film and the liquid by an ultrasonic vibration generated by the mist generation vibrator And dishwasher . 2. The dishwasher according to claim 1, wherein the container is made of a material having low permeability of the liquid sealed inside and low ultrasonic absorption. The thickness of the thin film formed on the surface of the container facing the mist generating vibrator is set to a thickness around ½ of the wavelength when the ultrasonic vibration generated by the atomizing generating vibrator propagates through the container. The dishwasher according to claim 1 or 2, wherein The thin film formed on the surface of the container facing the mist generating vibrator is constituted by a recess formed on the surface of the container facing the mist generating vibrator. The dishwasher described. 5. The dishwasher according to claim 4, wherein the recess is formed on a surface side in which liquid is sealed. 6. The dishwasher according to claim 4, wherein the concave portion is formed by compression-molding a surface facing the fog generating vibrator in the thickness direction after resin injection during the injection molding process of the container. The thin film formed on the surface of the container facing the mist generating vibrator is formed by airtightly covering the opening formed on the surface facing the mist generating vibrator with a sheet-like resin. The dishwasher in any one of 1-3.

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