JP4023452B2 - dishwasher - Google Patents

Description

  The present invention relates to a dishwasher for washing dishes using washing water.

  Conventionally, this type of dishwasher has a configuration as shown in FIG. 13 (see, for example, Patent Document 1). Hereinafter, the configuration will be described. As shown in the figure, a cleaning tank 1 for storing objects to be cleaned such as tableware, a lid 2 for opening and closing the cleaning tank 1, a water supply valve 3 for supplying water to the cleaning tank 1, and a cleaning pump for pressurizing the cleaning water 4 and an injection means 5 having an injection port for injecting cleaning water. A user sets an object to be cleaned in the cleaning tank 1, puts a detergent into the cleaning tank 1, and a lid 2. Close and then start operation.

After the operation is started, first, the water supply valve 3 is opened to supply water into the cleaning tank 1, water is stored at the bottom of the cleaning tank 1, and after supplying a predetermined amount of water, the water supply valve 3 is closed and the cleaning pump 4 is operated. The detergent is dissolved in water to become washing water, and the washing water pressurized by the washing pump 4 is jetted from the jetting unit 5 to the washing object, and the washing object is washed.
JP 2003-339607 A

  However, in conventional dishwashers, washing is performed by spraying the washing water obtained with a predetermined amount of detergent and water, but it is not universal for all stains, and it is difficult to completely wash off lipsticks and terrible tea astringency. There is also dirty. This is described in the instruction manual, etc., and the user was asked to wash his hands with a sponge beforehand.

  In order to wash off such dirt, there has been a need to increase the concentration of the detergent or increase the energy of jetting such as the pressure of the washing water. In order to increase the concentration of the detergent, it is necessary to add a lot of detergent, and there is a problem that the amount of detergent used increases. Further, when the jet energy of cleaning water is increased, the amount of water used and the amount of power consumption increase, which has problems such as deterioration in economic efficiency and increase in cleaning noise.

  An object of the present invention is to solve the above-described conventional problems, and to increase the cleaning performance without increasing the amount of detergent and jet energy, and to remove dirt that could not be washed conventionally.

In order to solve the above-described conventional problems, a dishwasher according to the present invention includes a washing tank for storing objects to be washed such as tableware, a water supply valve for supplying water to the washing tank, a washing pump for pressurizing washing water, First cleaning means for spraying cleaning water pressurized by a cleaning pump from a cleaning nozzle to clean the object to be cleaned, and cleaning water having a concentration higher than the detergent concentration of cleaning water to be cleaned by the first cleaning means A high-concentration wash water generating means, and a second cleaning means for atomizing the wash water generated by the high-concentration wash water generating means and adhering it to the object to be cleaned. A portion of the water that is communicated with the cleaning tank and supplied to the cleaning tank flows into the high-concentration cleaning water generating means to generate high-concentration cleaning water, and the high-concentration cleaning water generating means The remaining washing water and detergent are removed by the first washing means. It is obtained so as to mix the cleaning water jetted. Thereby, detergent components, such as an alkali, surfactant, and a bleaching agent, act with respect to stain | pollution | contamination at a higher density | concentration than before, and can remove a stain | pollution | contamination strongly.

  The dishwasher according to the present invention can improve the cleaning performance without increasing the amount of detergent and the jetting energy, and can remove dirt that could not be washed conventionally.

1st invention wash | cleans the washing water pressurized by the washing tank which accommodates to-be-washed | cleaned things, such as tableware, the water supply valve which supplies water to the said washing tank, the washing pump which pressurizes washing water, and the said washing pump First cleaning means for spraying from the nozzle to clean the object to be cleaned; high-concentration cleaning water generating means for generating cleaning water having a concentration higher than the detergent concentration of the cleaning water to be cleaned by the first cleaning means; A second cleaning unit that atomizes the cleaning water generated by the high-concentration cleaning water generation unit and attaches it to the object to be cleaned, and the high-concentration cleaning water generation unit communicates with the cleaning tank in the cleaning tank. A part of the supplied water flows into the high-concentration washing water generating means to generate high-concentration washing water, and the cleaning water and the detergent remaining in the high-concentration washing water generating means are the first concentration water. and to be mixed in the cleaning water injected by the cleaning means Thus, in the step of cleaning with the second cleaning means, detergent components such as alkali, surfactant and bleach act on the soil at a higher concentration than before, and can strongly remove the soil, Without increasing the amount of detergent and jet energy, the cleaning performance can be improved and dirt that could not be washed can be removed. Thereby, a user's washing operation can be reduced.

  In the second invention, the high-concentration washing water generating means has a gap into which a part of the water supplied to the washing tank enters, and enters the high-concentration washing water generating means from the gap by supplying water to the washing tank. It is what I did.

  According to a third aspect of the present invention, water is supplied to the high-concentration washing water generating means in the course of washing by the second washing means, and is thinner than the detergent concentration of the first washing water and is washed by the first washing means. By creating wash water with a higher concentration than the detergent concentration and washing with different detergent concentrations, the process uses a very high concentration of wash water with a minimal amount of water, and the wash is performed with a slightly higher amount of water, although the concentration is reduced. It is possible to perform optimum cleaning as a device, for example, to achieve both strong cleaning and uniform cleaning of the whole, such as performing both steps of attaching cleaning water to the surface of the entire object to be cleaned in the tank. Moreover, even when dirt having different removal performance is mixed depending on the concentration of the detergent, high cleaning performance as a whole can be obtained by washing at a concentration suitable for each.

  According to a fourth aspect of the present invention, the detergent concentration of the washing water washed by the second washing means is 10 times or more than the detergent concentration of the washing water washed by the first washing means, and is less than the detergent concentration having fluidity. As a result, it becomes possible to clean stains such as lipsticks and tea astringents that could not be washed out by conventional dishwashers.

According to a fifth aspect of the present invention, by using a liquid detergent for cleaning by the second cleaning means, the detergent can be easily dissolved in water, and cleaning using a higher concentration of cleaning water is performed. Can do.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
FIG. 1 is a main cross-sectional view of a dishwasher according to a first embodiment of the present invention. In the figure, the dishwasher body 20 is provided with a washing tub 22 that can be opened and closed by a door 21, and an object to be cleaned 23 such as tableware is set in a tableware basket 24 and accommodated in the washing tub 22. The water supply valve 25 supplies cleaning water to the cleaning tank 22. The cleaning pump (first cleaning means) 26 pressurizes the cleaning water, supplies it to the cleaning nozzle 27 provided with a plurality of injection holes, and performs the first cleaning by ejecting the cleaning water from the cleaning nozzle 27.

  The bottom of the cleaning tank 22 has a drain port 28 communicating with the suction side of the cleaning pump 26. The drain port 28 is provided with a residue filter 29 for collecting residue and a heating element 30 for heating. A temperature sensor 31 for detecting the temperature of the tank 22 is provided. The drainage pump 32 discharges the cleaning water in the cleaning tank 22. The blower 33 sends air to the cleaning tank 22 through the blower path 34 and discharges the exhaust from the exhaust port 35.

  A high-concentration washing water generating means 36 for producing high-concentration washing water inside the front edge of the opening of the washing tank 22 and a washing water atomizing means (second) for atomizing and scattering the generated washing water. Cleaning means) 37 for the second cleaning. Moreover, the 2nd water supply valve 38 for supplying water to the high concentration washing water production | generation means 36 and the detergent injection | throwing-in part 39 into which a user inputs a detergent are installed.

  As a basic operation of the dishwasher, an object to be cleaned 23 such as tableware is set in a tableware basket 24 and stored in a washing tub 22, and after the detergent is introduced, the door 21 closes the opening of the dishwasher main body 20. Start driving. A cleaning process for removing dirt on the object to be cleaned 23, a rinsing process for pouring the attached detergent and leftovers, and a drying process for drying the water suitable for the object to be cleaned 23 are performed in this order.

  The operation and action of the cleaning process, which is a characteristic process of the present invention, will be described. First, the user puts a detergent into a predetermined detergent feeding part 39, and the detergent enters the high-concentration washing water generating means 36. FIG. 2 is a cross-sectional view of the high-concentration washing water generating means 36, as shown in FIG. Various configurations such as a configuration in which the door is transported in conjunction with the closing operation of the door can be considered. In order for the user to put the detergent in a predetermined place, it is also effective means to write “detergent bowl” or the like in the detergent charging part 39 or to change the color of the surrounding part.

  When the door 21 is closed and the operation is started, the cleaning by the second cleaning means is first performed. The second water supply valve 38 operates to supply water to the high-concentration washing water generating means 36, and the detergent dissolves in the water flow of the water supply to generate high-concentration washing water. At this time, the high-concentration washing water generating means 36 dissolves the detergent in about 20 to 200 cc of water, preferably about 20 to 100 cc of water. When washing is performed by circulating washing water with a washing pump (first washing means) as in the past, the detergent is dissolved in about 2.5 L to 4 L of water. From the detergent concentration of the washing water when washing with the washing means, the washing water is generated about 10 to 100 times.

  The concentration of the cleaning water becomes maximum by completely dissolving the introduced detergent. However, the outlet 40 of the water supply path is squeezed to increase the flow velocity of the water flow, or the water supply path is formed at the bottom of the high-concentration cleaning water generating means 36. This dissolution rate can be improved, for example, by providing the outlet 40 with a shape in which the detergent is stirred. Alternatively, it is also effective to provide a detergent dissolving means. As shown in FIG. 3, a stirring means (detergent dissolving means) 41 having a rotating part, a temperature raising means (not shown) such as a heater for raising the water temperature, or the like. Conceivable.

  In addition, the heating element 30 for heating the inside of the cleaning tank 22 can be used as a temperature raising means (detergent dissolving means), and the detergent concentration of the washing water in the second cleaning can be increased without adding parts. it can. Even if a part of the detergent remains undissolved in the high-concentration washing water generation means 36, there is no problem as long as washing water having a predetermined concentration that exhibits a washing effect is obtained.

  Next, the high-concentration cleaning water generated by the high-concentration cleaning water generation unit 36 is scattered by the cleaning water atomization unit 37 into the cleaning tank 22, and the cleaning water is attached to the object 23 to be cleaned. In the present embodiment, as shown in FIG. 2, an ultrasonic vibrator 43 is used as the washing water atomization means 37. The ultrasonic vibrator 43 is vibrated and the vibration is transmitted to the cleaning water of the high-concentration cleaning water generating means 36 to atomize the cleaning water, and the cleaning water can be scattered in the cleaning tank 22. Unlike conventional methods, since cleaning water is atomized and scattered, even when the amount of cleaning water is extremely small, such as 100 cc or less, it is possible to adhere to the entire surface of the object to be cleaned. Can be used.

  The particle size of the atomized cleaning water is not particularly limited, but in order to spread throughout the entire cleaning tank 22, it is desirable that the particle diameter is as small as 100 μm or less. It is possible to create a state in which fine particles are floating on the surface of the object to be cleaned, and to spread the entire surface of the object to be cleaned.

  As described above, by applying cleaning water with a very high concentration of several to 100 times the detergent concentration of conventional cleaning water against dirt, it reacts with dirt with the powerful action of the detergent, It can dramatically improve the cleaning performance, such as lifting dirt from the lipstick, and it can also clean lipsticks and terrible tea astringents that could not be washed before. Further, since the cleaning power is improved, the cleaning time can be shortened and the cleaning temperature can be lowered to save energy.

  Basically, the higher the detergent concentration, the stronger the power to remove dirt, so the higher the concentration of cleaning water, the better. Even if there is a factor that inhibits cleaning at a high concentration, the first cleaning performed later does not cause any particular problem because the cleaning is performed at a detergent concentration equivalent to the conventional one. In addition, in order to produce such a high concentration of washing water using the same amount of water as before, it is necessary to use a large amount of detergent such as several to 100 times, which is preferable from the viewpoint of the economy and the global environment. It goes without saying that there is nothing.

  A higher cleaning effect can be obtained by providing the scattered particle driving means 44 for adhering the scattered cleaning water to the entire tableware. For example, as shown in FIG. 3, a motor-driven air blowing means 44 for moving the air in the cleaning tank 22 or a means for convection of the air in the cleaning tank 22 using natural convection by heating can be considered. For example, the heating element 30 for heating the inside of the cleaning tank 22 can also be used as the scattered particle driving means 44, and the air in the cleaning tank 22 is stirred by heating continuously or intermittently, so that the tableware for cleaning water can be used. Adhesion to can be promoted.

  In addition, if a liquid detergent is used for the cleaning by the second cleaning means, the dissolution rate of the detergent in water is high, so that highly concentrated cleaning water can be easily generated.

  After performing the cleaning by the second cleaning means for a predetermined time, the water supply valve 25 is opened, a predetermined amount of cleaning water is supplied into the cleaning tank 22, and the cleaning pump (first cleaning means) 26 is operated, Washing water is jetted from the washing nozzle 27 to execute the first washing. At this time, the cleaning water and the detergent remaining in the high-concentration cleaning water generating means 36 are mixed with the cleaning water used in the first cleaning means. In FIG. 2 and the like, a drain valve 45 for draining is provided, but the cleaning water sprayed by the cleaning nozzle 27 enters the high-concentration cleaning water generating means 36 without using an electric driving means. The purpose can also be achieved by creating an overflowing shape.

  In the first cleaning means, sufficient cleaning performance can be obtained even for dirt that has a large mechanical force and contributes to cleaning, such as sticking, by spraying cleaning water and causing mechanical force to act on the dirt. In addition, in the second cleaning performed in advance, it is possible to remove stains that have been peeled off from the tableware due to the chemical force of the detergent, and stains that have not been able to be completely removed even though the adhesion has weakened. .

  In order to obtain a strong cleaning performance using only the first cleaning means equivalent to the conventional one, it is necessary to apply high energy such as increasing the water pressure of the cleaning pump 26, and it is economically large. In addition, although it is not preferable because the driving noise increases, it is possible to obtain higher cleaning performance than before by using the cleaning pump and the amount of detergent equivalent to the conventional one by using both the first and second cleaning. .

  In the cleaning by the first cleaning means, the heating element 30 such as a sheathed heater provided in the cleaning tank 22 is energized and the cleaning water is heated as in the conventional case. Further, the temperature sensor 31 detects the temperature of the cleaning tank 22 and stops the energization of the heating element 30 when the temperature becomes higher than a predetermined temperature.

  The washing water passes through the residue filter 29 and is sucked into the washing pump 26, supplied to the washing nozzle 27 provided in the washing tank 22 from the washing pump 26, and sprayed into the washing tank 22 to wash the dishes 23. Then, it circulates along the route of returning to the drain port 28 again. At this time, the residue dropped from the tableware 23 flows into the residue filter 29 together with the washing water, and the residue having a size that cannot pass through the residue filter 29 is collected by the residue filter 29.

  When the predetermined cleaning is completed, the cleaning water containing dirt is discharged out of the apparatus by the drainage pump 32, and the cleaning process ends. Subsequently, the cleaning water is newly supplied, the cleaning pump 26 is operated, and the cleaning water is sprayed again from the cleaning nozzle 27 to perform the rinsing process of the object 23 to be cleaned, such as detergent and leftovers. After the operation for a predetermined time, the operation of discharging the cleaning water and supplying the cleaning water again is repeated, and this rinsing process is continuously performed about three times. Finally, the washing water is discharged outside the apparatus, and the rinsing process is completed.

  Subsequently, by performing a drying process and operating the blower 33, the outside air is blown into the cleaning tank 22 through the blower path 34 and is discharged from the exhaust port 35. At this time, the heating element 30 is energized, and evaporation of water droplets adhering to the object to be cleaned 23 is promoted by the effects of both air blowing and temperature. These drying steps are performed for a predetermined time, and the operation is terminated.

  In the operation sequence of the present embodiment, the second cleaning is performed before the first cleaning. First, dirt is floated by the cleaning water having a high detergent concentration, and then the machine by the cleaning pump 26 is used. By performing powerful cleaning, particularly efficient cleaning can be performed for thin dirt, but it is needless to say that higher cleaning power can be obtained for all dirt.

  Moreover, between the 1st and 2nd washing | cleaning means, the concentration of washing water can be changed only by supplying water automatically by the water supply valve 25, and a user adds additional detergent in the middle of a driving | operation etc. There is no need for operation.

  The second cleaning means is configured to atomize high-concentration cleaning water and adhere to the object to be cleaned, but the present invention does not limit the configuration itself of the second cleaning means, and the high concentration The configuration of the cleaning water generating unit 36, the cleaning water atomizing unit 37, etc. is effective regardless of the configuration. For example, as shown in FIG. 4, the air pump 46 is used to mix the high-speed air flow and the washing water to atomize the washing water, or as shown in FIG. 5, the high-speed water vapor is used using the boiler 47 that evaporates the water. Various things such as those in which the flow of water and washing water are mixed to atomize the washing water are conceivable.

  In addition, the second cleaning means is not limited to the configuration in which the cleaning water is atomized, but a configuration in which a small amount of cleaning water is dropped from the upper portion of the cleaning tank to the object to be cleaned as shown in FIG. The cleaning can also be realized by injecting the cleaning water generated with a smaller amount of water than the first cleaning means by operating the cleaning pump at a low speed or intermittently.

  Further, the arrangement and number of cleaning nozzles used in the first cleaning means and the form of the rotating nozzles are not limited, and high cleaning performance is achieved by arranging them on the back surface, side surface, top surface, etc. in addition to the bottom of the cleaning tank. It can also be obtained. Also, instead of spraying cleaning water from all cleaning nozzles at the same time, using a water diversion means that switches the flow path of the cleaning water between the cleaning pump and the cleaning nozzle, the cleaning water is jetted sequentially, thereby reducing the amount of water. It is also possible to operate the first cleaning means.

  In addition, when all or part of the washing tank is made of resin such as polypropylene, washing water having a higher detergent concentration than the conventional one is also adhered to the resin part by washing with the second washing means. The wall surface cleaning performance is also improved, and even when the resin is easily discolored due to dirt that has fallen off from the object to be cleaned, the discoloration or the like can be prevented or suppressed.

  Moreover, although the two water supply valves 25 and the 2nd water supply valve 38 were used for the water supply valve, it can also be comprised by one water supply valve. For example, as shown in FIG. 7, using only the second water supply valve 38 for supplying water to the high-concentration cleaning water generating means 36, first, it is necessary for the predetermined second cleaning before the cleaning by the second cleaning means. Only a small predetermined amount of water is supplied, and after the second cleaning is completed, water is supplied from the second water supply valve 38 and overflowed from the high-concentration cleaning water generating means 36 to supply water to the cleaning tank 22. After supplying a predetermined amount of water necessary for the first cleaning, the cleaning pump 26 is driven to perform the first cleaning. On the other hand, it is also possible to use only the water supply valve 25 that supplies water to the cleaning tank 22.

  As shown in FIG. 8 (main cross-sectional view) and FIG. 9 (view of the high-concentration washing water generating means 36 as seen from above), a gap 48 is provided on the wall surface of the high-concentration washing water generating means 36, If a part of the supplied water enters the high-concentration cleaning water generating means 36, the cleaning water enters the high-concentration cleaning water generating means 36 simultaneously with the supply of water to the cleaning tank 22, and first the high-concentration detergent is added. A second cleaning to atomize is performed. After the second cleaning is completed, the cleaning water has already been supplied to the cleaning tank 22, so that the first cleaning can be performed subsequently.

  In addition, by providing the gap 48 in a part of the wall surface of the high-concentration washing water generating means 36, the high-concentration washing water may flow out and the concentration may be reduced, but the washing water having a predetermined concentration can be obtained. There is no problem. In addition, additional water supply may or may not be performed between the first and second cleaning.

  The present invention relates to a washing method for a dishwasher, and does not limit the shape and size of the dishwasher body 20, the opening / closing method of the door 21, the arrangement of dishes, the arrangement of individual components, and the like. Moreover, although the example of the dishwasher which has a drying function was shown in Embodiment 1, the same effect is acquired also in the dishwasher which does not accompany a drying function.

(Embodiment 2)
FIG. 10 is an enlarged cross-sectional view of the dishwasher according to the second embodiment of the present invention. The basic configuration is the same as that shown in FIG. 1, but there are two detergent insertion portions where the user puts the detergent. Similar to the first embodiment, there is a detergent charging part 39 for putting detergent in the high-concentration washing water generating means 36 and a second detergent charging part 49 for putting detergent in the cleaning tank 22.

  The user throws detergent into the detergent throwing part 39 and the second detergent throwing part 49, respectively. The first cleaning is performed before the second cleaning. First, the water supply valve 25 is operated to supply a predetermined amount of cleaning water to the cleaning tank 22, and then the cleaning pump 26 is operated so that the cleaning water is sprayed from the cleaning nozzle 27 to remove dirt adhered to the object 23 to be cleaned. To do. At this time, the sprayed cleaning water does not enter the high-concentration cleaning water generating means 36.

  After the completion of the first cleaning step, the second water supply valve 38 is operated to supply a small amount of water to the high-concentration cleaning water generating means 36 to perform the second cleaning. The relationship between the amount of water and the concentration of detergent in the first and second cleaning, the action and the effect are the same as those shown in the first embodiment, but the order of the first and second cleaning steps is reversed. It is.

  For this reason, washing with mechanical force such as spraying with a washing pump is first performed to remove large deposits, and then washing water with a high concentration of detergent is applied, so washing with mechanical force stuck to the surface of the dish is quite easy. The dirt that cannot be removed can be completely removed with a strong chemical force, and the cleaning performance is improved. In particular, efficient cleaning can be performed against thick dirt. After the second cleaning, as in the first embodiment, cleaning and drying processes are performed, and the operation ends.

  In addition, the 2nd detergent injection | throwing-in part 49 may not be installed, but the form which inputs a detergent directly to the washing tank 22 may be sufficient. In addition, only one detergent charging part 39 is provided and the passage is divided into two, and a configuration in which the detergent automatically enters both the high-concentration washing water generating means 36 and the washing tank 22 is also conceivable. Reduction can be achieved.

(Embodiment 3)
FIG. 11 is an operation sequence diagram of the washing process of the dishwasher according to the third embodiment of the present invention. The configuration of the apparatus is the same as in FIG.

  During the cleaning by the second cleaning means 37, water is again supplied to the high-concentration cleaning water generating means 36 by the second water supply valve 38 to generate cleaning water having a slightly lower concentration than the detergent concentration of the first cleaning water. To do. However, the concentration is set higher than the concentration in the first cleaning step. In order to improve the cleaning performance, higher concentration cleaning water may be used. For example, the amount of water becomes very small, such as about 30 cc, and only the cleaning water is used to uniformly wash the entire object to be cleaned. It is difficult to attach. For this reason, cleaning water is sprayed to every corner in the cleaning tank 22 by first attaching high-concentration cleaning water only to the portion to be strongly cleaned, and then spraying a large amount of cleaning water after re-supplying water. For example, both strong cleaning and uniform cleaning can be achieved.

(Embodiment 4)
FIG. 12 is an operation sequence diagram of the washing process of the dishwasher according to the fourth embodiment of the present invention. The configuration of the apparatus is the same as in FIG.

  In the middle of the first cleaning step, water is supplied to the cleaning tank 22 by the water supply valve 25 again to perform cleaning with different amounts of water. At the beginning of the first cleaning step, cleaning is performed with slightly high-level concentrated cleaning water. However, since the amount of water is small, control such as suppressing the rotation speed of the cleaning pump 26 or performing intermittent operation is performed simultaneously. Although the jetting energy itself is thereby reduced, the washing can be performed while jetting the washing water pressurized from the washing nozzle 27 with the washing water having a high concentration, and the washing is performed with the washing water having a higher detergent concentration than before. By providing this, both the chemical power of the detergent and the mechanical force of the spray act, and a high cleaning power can be obtained.

  As described above, the dishwasher according to the present invention can improve the cleaning performance without increasing the amount of detergent and jet energy, and can also remove dirt that could not be washed in the past. Is also applicable.

Main sectional drawing of the dishwasher of Embodiment 1 of the present invention Partial sectional view of the dishwasher Partial sectional view of another dishwasher of the first embodiment Partial sectional view of another dishwasher of the first embodiment Partial sectional view of another dishwasher of the first embodiment Main sectional view of another dishwasher of the first embodiment Main sectional view of another dishwasher of the first embodiment Main sectional view of another dishwasher of the first embodiment Partial detail drawing of the other dishwasher of Embodiment 1 Partial principal sectional drawing of the dishwasher of Embodiment 2 of this invention Operation sequence diagram of the washing process of the dishwasher according to Embodiment 3 of the present invention Operation sequence diagram of washing process of dishwasher according to embodiment 4 of the present invention Main sectional view of a conventional dishwasher

Explanation of symbols

22 Cleaning tank 26 Cleaning pump (first cleaning means)
37 Washing water atomization means (second cleaning means)

Claims (5)

A cleaning tank for storing objects to be cleaned such as tableware, a water supply valve for supplying water to the cleaning tank, a cleaning pump for pressurizing the cleaning water, and a cleaning nozzle pressurized by the cleaning pump First cleaning means for cleaning an object to be cleaned, high-concentration cleaning water generating means for generating cleaning water having a concentration higher than a detergent concentration of cleaning water cleaned by the first cleaning means, and generation of the high-concentration cleaning water A second cleaning means for atomizing the cleaning water generated by the means and attaching it to the object to be cleaned, wherein the high-concentration cleaning water generating means communicates with the cleaning tank and is one of the water supplied to the cleaning tank. The high-concentration washing water generating means flows into the high-concentration washing water generating means, and the cleaning water and detergent remaining in the high-concentration washing water generating means are jetted by the first washing means. A dishwasher that is mixed with washing water . The high-concentration washing water generating means has a gap into which a part of the water supplied to the washing tank enters, and the high-concentration washing water generating means enters the high-concentration washing water generation means from the gap by supplying water to the washing tank. The dishwasher described. Water is supplied to the high-concentration washing water generating means in the middle of the washing by the second washing means, and is thinner than the detergent concentration of the first washing water and higher than the detergent concentration of the washing water washed by the first washing means. The dishwasher according to claim 1, wherein said washing water is generated and washed with different detergent concentrations. The detergent concentration of the washing water washed by the second washing means is 10 times or more the detergent concentration of the washing water washed by the first washing means, and is below the detergent concentration having fluidity. dishwasher. The dishwasher according to claim 1, wherein a liquid detergent is used for the cleaning by the second cleaning means.

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