JP4581493B2 - dishwasher - Google Patents

Description

  The present invention relates to a dishwasher for cleaning by irradiating washing water onto an object to be cleaned such as dishware.

  Conventionally, a general dishwasher performs cleaning by spraying on an object to be cleaned such as tableware while dissolving a detergent (see, for example, Patent Document 1). FIG. 3 shows a general dishwasher, and its configuration will be described below. The dishwasher main body is provided with a washing tub 1 inside, and water or hot water is supplied into the washing tub 1 by a water supply means (water supply valve) 2. Here, the supply of the washing water is set to an appropriate water level using the water level detection means 3 and the water supply from the water supply means 2 is automatically stopped. A drain hole 4 is provided at the bottom of the cleaning tank 1, and a cleaning pump 5 that is connected to the drain hole 4 and is driven by a motor is attached. The cleaning pump 5 circulates cleaning water inside the cleaning tank 1. is doing. Further, the drain hole 4 is provided with a residue filter 6 for collecting the residue.

  About the dishwasher comprised as mentioned above, the operation | movement is demonstrated below. The cleaning water supplied into the cleaning tank 1 passes through the residual filter 6 and is sucked into the cleaning pump 5 and supplied from the cleaning pump 5 to the cleaning means (cleaning nozzle) 7 provided at the inner bottom of the cleaning tank 1. The The washing water sprayed from the washing means 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.

Further, a heating means (heater) 9 for heating the cleaning water is provided between the cleaning means 7 and the bottom of the cleaning tank 1, and an object to be cleaned 8 can be arranged in an orderly manner above the cleaning means 7. The tableware basket 10 configured to effectively spray water onto the article to be cleaned 8 is installed for efficient cleaning. Moreover, the drainage pump 11 discharges washing water outside the apparatus. Furthermore, the control means 12 drives and controls electrical components such as the water supply means 2 and the cleaning pump 5.
Japanese Patent Laid-Open No. 2003-210378

  However, with such a conventional configuration, it has not been possible to wash all the stains washed by the dishwasher. In particular, it is not good for dishes that are directly heated and cooked with scorch. For example, gratin, chawanmushi, etc.

  As a solution to this, it has a pre-treatment process in which a detergent solution having a higher concentration than that in normal use is attached to an object to be cleaned and left to stand, and cleaning at a high temperature can greatly improve the cleaning performance. It is possible to clean dishes that could not be removed in the past. Also, by increasing the atomization generation operation time, the amount of high-concentration detergent liquid atomized can be increased, and the amount of adhesion to the object to be cleaned can be increased, making it easier to remove dirt. In addition, the cleaning performance can be improved.

  Here, if the atomization generating operation time of all the courses to be driven is extended, the operation time of each course is extended uniformly and the energy consumption is also increased.

  The present invention solves the above-mentioned conventional problems, and sets the operation time of the atomization generating means for each course to be driven, and increases the range of options of the user in terms of the type of dirt, operation time, energy consumption, etc. The purpose is to provide a dishwasher with greatly improved usability by spreading.

For the present invention to achieve the above object, a cleaning tank for accommodating the dishes and the like, have a ultrasonic transducer, and atomizing generating means for atomizing the detergent solution is scattered in the cleaning tank, inwardly A detergent liquid preparation unit that has the atomization generating means and is formed with a partition formed between the cleaning tank and a partition wall, and is formed by cutting out a part of the partition wall and communicating with the cleaning tank, and the cleaning tank A water supply means for supplying water from an external pipe, a water level detection means for detecting the water level in the cleaning tank, and a pretreatment process for controlling the operation of each load and driving the atomization generating means. Control means, the control means, after a predetermined amount of detergent has been introduced into the detergent liquid preparation part, the cleaning water enters only from the notch part, a part of the detergent dissolves in the cleaning water, the detergent liquid Is generated, and then the detergent in the detergent liquid preparation unit Controls such that the pre-treatment step of atomizing is carried out by the atomizing generating means, the time of the pretreatment step is used to control the operation of the different courses.

  Thereby, the user can select the course according to the conditions that the user wants to use in terms of the type of dirt, the operation time, the energy consumption, and the like, thereby greatly improving usability.

  The dishwasher of the present invention can operate a plurality of courses with different operation times of the atomization generating means, so that the course is selected according to the conditions that the user wants to use in terms of the type of dirt, operation time, energy consumption, etc. And a dishwasher with greatly improved usability can be realized. Degradation of dirt in the pretreatment process with a high-concentration detergent solution is effective for oil-based and pigment-based stains such as lipstick and black tea. The user can use the dishwasher of the present invention properly according to the type of dirt, such as when the pretreatment process is not always necessary, such as when it is washed away.

The first invention includes a cleaning tank for accommodating the dishes and the like, have a ultrasonic transducer, and atomizing generating means for atomizing the detergent solution is scattered in the cleaning tank, the atomizing generating means inwardly And a detergent preparation section that communicates with the cleaning tank at a notch formed by cutting out a part of the partition and forming the cleaning tank and the partition wall apart from each other, and an external pipe in the cleaning tank Water supply means for supplying water, water level detection means for detecting the water level in the cleaning tank, and control means for controlling the operation of each load and controlling the pretreatment process for driving the atomization generating means. The control means is configured such that after a predetermined amount of detergent is introduced into the detergent liquid preparation section, cleaning water enters only from the notch, and a part of the detergent dissolves in the cleaning water to generate a detergent liquid. Means for generating atomization of detergent liquid in the detergent liquid preparation section The control is performed so that the pretreatment process to be atomized is performed, and by controlling the operation of a plurality of courses having different times of the pretreatment process, it is used from the viewpoint of the type of dirt, the operation time, energy consumption, etc. Since the course can be selected according to the conditions that the user wants to use, the usability can be greatly improved.

According to a second invention, in the first invention, the control means performs a cleaning process after the pretreatment process for driving the atomization generating means and performs the pretreatment process for a predetermined time, and the pretreatment process. Since it is configured to have a course that is approximately 1.5 to 3 times the predetermined time, the atomization occurrence time is set for each course, so the cleaning performance is more efficiently secured for the type of dirt. can do.

The third invention is the upper Symbol second invention, in the course of performing the pretreatment step a predetermined time, by the temperature of the washing water during the washing steps was about 50-65 ° C., Ya oil based lipstick and Chashibu It is effective for removing pigment-based stains, and can reduce the operating time and energy consumption. Therefore, it is possible to improve the cleaning performance more efficiently for stains that have been difficult to remove.

According to a fourth aspect of the present invention, in the second aspect of the present invention , in the course in which the pretreatment step is performed for approximately 1.5 to 3 times the predetermined time, the temperature of the cleaning water at the cleaning step is about 65 to 80 ° C. Therefore, it is effective for removing dirt stuck to tableware such as gratin or tea-boiled steam, and can greatly improve the cleaning performance against dirt that has been difficult to remove.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the invention, the course having no pretreatment step is used to shorten the operation time or save energy consumption. Since it can be selected, usability can be improved.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the pretreatment step can be operated with a small amount of water by having a course for performing a rinsing step next to the pretreatment step. Therefore, significant water saving can be realized and energy efficiency can be improved.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the thing of the same structure as a prior art example attaches | subjects the same code | symbol, and abbreviate | omits description. Further, the present invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 is a longitudinal sectional view of a dishwasher according to Embodiment 1 of the present invention, and FIG. 2 is a longitudinal sectional view (a main part enlarged longitudinal sectional view) of an atomization generating means. In FIG. 1, the detergent liquid preparation unit 13 is formed at a position along one side of the front end of the cleaning tank 1 with the cleaning tank 1 and the partition wall 14 separated from each other, and a part of the partition wall 14 is cut out to communicate with the cleaning tank 2. The atomization generating means 15 for atomizing the detergent solution created in the detergent solution creating unit 13 is arranged on the inside thereof.

  As shown in FIG. 2, the atomization generating means 15 has an ultrasonic vibrator (vibration generating vibrator) 16 disposed on the lower surface, and a sealed liquid 17 is sealed above the vibration surface of the ultrasonic vibrator 16. The surface of the container 18 facing the ultrasonic vibrator 16, that is, the atomization generating surface 19 is vibrated via the vibration transmitting material constituted by the sealed liquid 17 and the container 18, and the detergent liquid is disposed. It is comprised so that the detergent liquid in the preparation part 13 may be atomized.

  Further, a lid 20 is disposed above the detergent liquid preparation unit 13, and the lid 20 includes a cover part 21 that covers the atomization generation surface 19 from above and an inclined part 22 that introduces detergent into the cleaning preparation part 13. In addition, the cover portion 21 is provided with a hole portion 23 for scattering the atomized detergent liquid. In addition, a course to be driven can be selected by a button operation on the operation display unit 25 provided on the door unit 24. As the driving course, the pretreatment process time for driving the atomization generating means 15 is 15 minutes, and The course in which the washing water temperature in the washing process is about 80 ° C, the pretreatment process time is 8 minutes, the washing water temperature in the washing process is about 60 ° C, the course without the pretreatment process, after the pretreatment process, Each course including the course which drains and supplies water and operates the rinsing process can be set.

About the dishwasher comprised as mentioned above, the operation | movement and an effect | action are demonstrated. When a predetermined amount of detergent is put on the inclined portion 22, the detergent is introduced into the detergent liquid creating portion 13 along this inclination. Next, when the operation is started, the water supply means 2 is opened to supply a predetermined amount of cleaning water. The washing water passes from the washing tank 1 through the notch portion 14a of the partition wall 14 and enters the detergent liquid preparation unit 13, and a part of the detergent dissolves in the washing water.

  When the water level detection means 3 detects the water level, the control means 26 closes the water supply means 2, stops the water supply, and determines the water level. The water level at this time is above the upper end surface of the heating means 9. At this time, when the ultrasonic vibrator 16 is driven, the vibration propagates through the sealed liquid 17 and vibrates the atomization generating surface 19 via the sealed liquid 17 and the container 18. At this time, if the position of the atomization generation surface 19 is arranged at a position where the vibration amplitude of the ultrasonic transducer 16 is maximized, the atomization generation surface 19 can be vibrated greatly.

  Due to 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 liquid preparation unit 13 is dissolved and the detergent solution of high concentration in the cleaning tank 1 is passed through the hole 23. Scatter. Furthermore, the washing water is heated by the heating means 9 to generate convection in the washing tank 1 so that the mist of the high-concentration detergent liquid is convected into the washing tank 1 and the high-concentration detergent liquid is more efficiently used. Can be attached to the object 8 to be cleaned.

  As a pretreatment process of the cleaning process, as described above, the high-concentration detergent liquid is scattered in the cleaning tank 1 from the atomization generating means 15, and this high-concentration detergent liquid is adhered to the object 8 to be cleaned. If left alone, the high-concentration detergent solution chemically decomposes the dirt adhering to the object 8 to be cleaned. Next, after the pretreatment process, in the washing process, the dirt after the specific dirt is decomposed with the high-concentration detergent solution in the pretreatment process is washed as a conventional dishwasher.

  As for the dirt of the object 8 to be cleaned, there are conventionally dirt that has been difficult to remove, such as lipsticks and oil-based stains such as tea astringents, and things that are stuck to the object to be cleaned such as gratin and chawanmushi. The above-described high-concentration detergent solution is effective in decomposing dirt in the pretreatment step, and the latter is more effective in strengthening the pretreatment step, in addition to temperature and mechanical force (washing water from the washing means 7). The momentum of the injection) is very effective. In addition, in the case of very light dirt, after most of the dirt is decomposed in the pretreatment process, it may be removed in the rinsing process. Furthermore, under the conditions of actual use, there are cases where the pretreatment process is not necessarily required, for example, in the case of relatively light dirt, or in the case where the user has previously washed away contaminants with water.

  The dishwasher of the present invention can be used properly according to the type of dirt, the operating time, and the energy consumption because the user can freely select the course on the operation display unit 25. As a result, it is possible to realize a dishwasher that greatly improves the cleaning performance and improves usability.

  As described above, the dishwasher according to the present invention is operated by a plurality of courses having different operation times of the atomization generating means, so that the user can use properly according to the type of dirt, the operation time, and the energy consumption. Therefore, it is possible to greatly improve the cleaning performance and usability, so that the present invention is useful as a dishwasher for cleaning by spraying cleaning water onto an object to be cleaned such as tableware.

The longitudinal cross-sectional view of the dishwasher of Embodiment 1 of this invention An enlarged sectional view of the main part of the dishwasher Vertical section of a conventional dishwasher

1 Washing tank 2 Water supply means (water supply valve)
3 Water level detection means 7 Cleaning means (cleaning nozzle)
9 Heating means (heater)
15 Atomization generating means 26 Control means

Claims (6)

A cleaning tank for accommodating the dishes and the like, a cleaning means disposed in said cleaning tank, have a ultrasonic transducer, and atomizing generating means for atomizing the detergent solution is scattered in the cleaning tank, inwardly A detergent liquid preparation unit that has the atomization generating means and is formed with a partition formed between the cleaning tank and a partition wall, and is formed by cutting out a part of the partition wall and communicating with the cleaning tank, and the cleaning tank A water supply means for supplying water from an external pipe, a water level detection means for detecting the water level in the cleaning tank, and a pretreatment process for controlling the operation of each load and driving the atomization generating means. Control means, the control means, after a predetermined amount of detergent has been introduced into the detergent liquid preparation part, the cleaning water enters only from the notch part, a part of the detergent dissolves in the cleaning water, the detergent liquid Is generated, and then the detergent in the detergent liquid preparation unit The controls as the pretreatment step of atomizing is carried out by atomizing generating means, dishwasher time of the pre-treatment step controls the operation of the different courses. Control means, after the pretreatment step, performed washing steps, wherein with the course of performing the pretreatment step a predetermined time, and a course of performing the pretreatment step substantially 1.5 to 3 times the predetermined time period Item 1. A dishwasher according to item 1. The dishwasher according to claim 2, wherein the temperature of the washing water in the washing step is about 50 to 65 ° C in the course in which the pretreatment step is performed for a predetermined time. The dishwasher according to claim 2 , wherein the temperature of the washing water in the washing step is about 65 to 80 ° C in a course in which the pretreatment step is performed for approximately 1.5 to 3 times the predetermined time. The dishwasher of any one of Claims 1-4 which has a course without a pre-processing process. The dishwasher according to any one of claims 1 to 5, further comprising a course for performing a rinsing step after the pretreatment step.

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