JP2001190480A - Dishwasher - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To use a conventional dishwasher and dryer, bleaching components are mixed in the detergent, but the amount is not sufficient.
There is a problem that the operation requires a great deal of time and labor due to the manual operation of the user, and a problem that the washing water with the bleaching solution is touched and the hands become rough. SOLUTION: A tableware basket 2 into which items to be washed such as tableware are put.
2, a washing tank 21 containing a tableware basket 22, a washing pump 29, and a water supply valve 2 for supplying washing water to the washing pump 29.
6, a drain pump 34, a heater 28, an operation unit having a course selection switch, and a control device 31, and a dishwasher / dryer provided with a dedicated bleaching course for bleaching and drying dishes. And

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher installed in a home kitchen, and more particularly to a technique for bleaching dishes and the like.

[0002]

2. Description of the Related Art Regarding the configuration of a conventional dishwasher / dryer,
A description will be given based on FIG. 1 is a sink on which a dishwasher 3 is placed. Reference numeral 4 denotes a washing tub, and reference numeral 5 denotes a tableware basket for storing tableware, which is supported on a rail surface 7 provided on a side surface of the washing tub 4 via a rotating roller 6. Reference numeral 8 denotes a lid provided at the opening of the cleaning tank 4. Reference numeral 9 denotes a water supply valve, and reference numeral 10 denotes a water amount detection device. Water is supplied by opening the water supply valve 9. The water amount is detected by the water amount detection device 10, and a set amount is stored in the washing tank 4.
Numeral 11 denotes a heating heater arranged in the cleaning tank 4 for heating the cleaning water. 12 is a cleaning pump for pressurizing cleaning water, 1
Reference numeral 3 denotes a washing nozzle installed below the washing tank 4, which supplies washing water pressurized by the washing pump 12 to the dish basket 5.
Spray from below onto the tableware stored in.

By operating the washing pump 12 in this manner, washing water is injected from the washing nozzle 13 and a main washing step of washing while washing the washing water using a detergent, and then rinsing the washing water several times while heating. The rinsing process,
Finally, while heating to a predetermined temperature, the process proceeds to a heating and rinsing step to wash the dishes. When washing is completed,
The drying process for drying the tableware is started, and the operation is finished after the tableware is dried. Then, the lid 8 is opened, the tableware basket 5 is pulled out toward the user, and the tableware is taken out. A control device 14 controls the operation of the cleaning pump 12 and the like. 15 is a water supply hose,
Reference numeral 16 denotes a drain hose, and 17 denotes a drain pump.

[0004]

However, in the above-mentioned conventional dishwasher / dryer 3, the bleaching component is mixed in the detergent, but the amount thereof is not sufficient, and there is a problem that tea astringency is deposited on a cup of tea or the like. . In addition, the user fills the washing tub with water containing bleaching agent, leaves teapots and chopping boards that are not usually used in dishwashers and dryers for a long time, and then rinses and further dries. Such as bleaching work that requires a lot of time and effort. Further, at this time, there is a problem that the washing water with the bleaching solution is touched and the skin is exposed. In addition, there is a problem that the sink of the sink is occupied for a long time, which hinders the cooking operation.

[0005] Japanese Patent Application Laid-Open No. 63-181733 discloses an operation in which a bleaching agent is continuously supplied during a washing step. However, the present invention is characterized in that a dedicated bleaching course is provided and a dedicated operating course is provided. This is different from JP-A-63-181733. JP-A-5-137689 relates to the production of hypochlorous acid having a bleaching effect, which is different from the present invention using a commercially available bleaching agent.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, the present invention provides a washing tank for accommodating an object to be washed such as tableware and a basket for washing the object to be washed. A washing unit for washing the object to be washed, a water supply unit for supplying washing water to the washing unit, a drain unit, an operation unit having a course selection switch, and controlling the washing unit, the water supply unit, and the drain unit. It has a control means and a main body for accommodating them, and a dedicated bleaching course for bleaching and drying tableware is provided.

Therefore, according to the present invention, the user can perform the bleaching and drying operations of the tableware and the like in a fully automatic manner, thereby creating extra time, reducing physical fatigue, and suppressing rough skin such as hands. can do. Further, since the sink is not occupied for a long time, the cooking operation can be performed more smoothly. Furthermore, since the intermittent operation is performed or only the heating rinse is used to heat the washing water to perform the rinsing, lower noise and energy saving operation can be performed as compared with the conventional dishwasher / dryer.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is characterized in that a washing tank containing the basket for washing the object to be washed is provided together with an object to be washed such as tableware and the like. Washing means for washing, water supply means for supplying washing water to the washing means, drainage means, an operation unit having a course selection switch, control means for controlling the washing means, water supply means, drainage means, It has a main body for storing and has a bleaching-only course for bleaching and drying tableware and the like.

By making this configuration an embodiment,
Bleaching and drying of tableware etc. can be performed fully automatically with a dedicated bleaching course suitable for bleaching tableware etc., which can reduce physical burden, prevent rough hands, save energy and reduce noise. Effective bleaching can be realized.

The invention according to claim 2 is characterized in that in the bleaching step in which the bleaching agent is supplied, the cleaning means performs continuous injection in the initial stage of operation and thereafter performs intermittent injection by selecting a bleaching-only course. It is controlled by means.

By employing this configuration as an embodiment, low-noise and energy-saving operation can be realized.

Further, in the invention according to claim 3, the operation section has a display means for displaying that the bleach-only course is being operated.

By employing this configuration as an embodiment, the power switch is not accidentally turned off and the tableware or the like wet with the bleaching washing water is not directly touched with the hand.

According to a fourth aspect of the present invention, the main body has a pH detecting means for detecting a pH of the washing water, and the main body has a pH value outside the range of the washing water set according to each operation course. For example, it has a display means for suspending the operation and prompting the correct detergent or bleaching agent to be supplied.

[0015] By adopting this configuration as an embodiment, even if the selection of the operation course of the dishwasher and the charging agent (detergent or bleaching agent) are different, the user is informed of the difference and insufficient cleaning of the dishes and the like. Alternatively, shortage of bleaching can be prevented from occurring.

According to a fifth aspect of the present invention, the operation unit is provided with a dispensing agent display device for displaying the type of the dispensing agent charged into the cleaning tank.

By adopting this configuration as an embodiment, the user can confirm the type of the dispensing agent, and can correct the mistake and immediately put the correct dispensing agent in the case of an error.

In the invention according to claim 6, during operation of the bleaching-only course, the control means does not heat the washing water in the bleaching step and the rinsing step, but keeps the washing water at a predetermined temperature only in the subsequent heated rinsing course. It controls to perform the heating rinsing.

By employing this configuration as an embodiment, the use of unnecessary electric power due to the heating of the washing water is stopped, whereby the operation with more energy saving can be realized.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing the structure of a dishwasher according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of a main part showing a state where a pH sensor of the dishwasher is attached.
FIG. 3 is an external perspective view of the dishwasher. FIG. 4 is an explanatory view showing the operation concept of the control means of the dishwasher. FIG. 5 is a view showing an operation state of a washing pump of the dishwasher. FIG. 6 is a diagram showing the relationship between the washing water temperature of the dishwasher and the time, and the operating condition of the heating means.

In FIG. 1, 20 is a main body of a dishwasher, 21 is a washing tank, and 22 is a dish basket for storing dishes.
It is supported on a rail surface 24 provided on a side surface of the cleaning tank 21 via a rotating roller 23. 25 is cleaning tank 2
1 is a lid provided in the opening. 26 is a water supply valve, 27
Is a water level detection device which is a water level detection device, and water is supplied by opening a water supply valve 26 which is a water supply device. The water level is detected by a water level detection device 27 (float type water level detection device), and a specified amount is detected. The water is stored in the cleaning tank 21.
Reference numeral 28 denotes a heater for heating, which is a heating unit disposed in the cleaning tank 21, and heats the cleaning water. 29 is a washing pump for heating the washing water, and 30 is a washing nozzle installed below the washing tank 21 and injects washing water pressurized by the washing pump 29 from below into the tableware stored in the tableware basket 22. I do. The cleaning means comprises the cleaning pump 29 and the cleaning nozzle 30. Reference numeral 31 denotes a control device (control means) for controlling the operation of the cleaning pump 29. 32 is a water supply hose, and 33 is a drain hose. Reference numeral 34 denotes a drainage pump (drainage means) for discharging the washing water stored in the washing tank 21 to the outside of the machine. Three
5 is a blower for drying tableware. Drying means is constituted by the blower 35 and the heater 28. An operation unit 36 is provided at a lower portion of the front of the main body. The water level detection system may be an electronic system using a piezoelectric element, an optical system, or a system using ultrasonic waves, in addition to the float system. Alternatively, it is conceivable to use a float type water level detection device and a water supply valve with a flow meter.

FIG. 2 is a sectional view of a main part showing a pH sensor (pH detecting means), which is provided at a lower portion of the washing tank 21 so as to come into contact with washing water.

FIG. 3 is a perspective view of the appearance of the dishwasher. The operation section 36 has a bleaching-only course display section 38 (bleaching-only course display section), a charging agent type display section (bleaching agent type display device) 39, and operation. A course selection switch 40 is provided.

FIG. 4 shows a control device 31, a cleaning pump 29,
FIG. 3 is a conceptual diagram illustrating operations of a water level detection device 27, a heater for heating 28, a water supply valve 26, a thermistor 41, a pH sensor 37, and the like.

FIG. 5 and FIG. 6 show the temporal changes in the operating conditions of the washing pump, the temperature of the washing water, and the operating conditions of the heater for the bleaching course. Continuous operation is performed to dissolve the bleaching agent, but the bleaching agent melts in about 3 minutes. Thereafter, since the washing water adheres to the dishes and the like, the bleaching effect is sufficient even with intermittent exercise. Instead, the bleaching time is set longer for normal dishwashing. In the next rinsing step, the washing pump is operated as usual to rinse the dishes. In the bleaching step and the rinsing step, the heater is turned off. However, the highest priority is given to energy saving operation. This is because the bleaching operation of the user is performed at midnight or between meals, and there is no need to consider much about shortening the operation time.

Next, the operation and the operation will be described. When operating the bleaching-only course, first, the lid 25 is opened and an appropriate amount of the bleach is introduced into the washing tank 21. And lid 25
Is closed, the power switch 42 on the operation unit 36 on the entire surface of the main body 20 is pressed, and then the operation is started after selecting the operation course selection button 40. At this time, the bleach-dedicated course display section 38 is turned on to notify the user that the bleach-dedicated course is in operation (see FIG. 3).

When the operation is started, first, the water supply valve 26 is opened to start a water supply step of supplying cleaning water to the cleaning tank 21. As shown in FIG. 1, when the amount of water supplied during normal dishwashing is input, a water supply valve 26 transmits a signal indicating completion of water supply to the control device. In this state, the cleaning pump 29 operates. Then, the washing water is jetted from the washing nozzle 30 to bleach the tableware and the like while dissolving the bleaching agent. However, after about 3 minutes for the bleach to completely dissolve, the washing pump 29 enters an intermittent operation in which the operation is repeatedly started and stopped (see FIGS. 5 and 6). Bleaching is for cleaning tea astringents of tableware and the like by a chemical reaction using a bleaching agent, and does not require much mechanical power by spraying. Therefore, it is only necessary to keep the surface of the tableware or the like wet with the washing water in which the bleach is dissolved. Therefore, a predetermined bleaching effect can be obtained even if the intermittent operation is performed.
Next, the tableware is rinsed several times, and then the heating rinse step is started. In the bleaching step and the rinsing step, the heating heater 28 was off, but in the heating rinsing step, the heating water was heated to increase the rinsing effect by heating the washing water and shorten the drying time in the subsequent drying step. 28 is turned on. The temperature of the washing water is detected by a thermistor 41 attached to the bottom of the washing tank 21. In addition, when the heater 28 is operated in the bleaching step and the rinsing step, the bleaching and rinsing effects are enhanced. come.

The pH sensor 37 can determine whether the supplied agent is a detergent or a bleach.
That is, the dishwasher detergent has a weak alkalinity, and the bleach has a alkalinity. Therefore, when the user inputs the bleach even though the user has selected the normal operation course, the control device 31 receives a signal from the pH sensor 37, and the input agent type display portion 39 on the operation portion 36 displays the character of detergent. The lamp is turned on to notify the user of this. Therefore, the user can perform the usual cleaning by putting the detergent. Conversely, if you add detergent even though you have selected a bleach-only course,
The tableware cannot be sufficiently washed if the operation is continued as it is, but in the configuration of the present invention, the above-mentioned error is notified to the user, and the dispensing agent type display section 39 turns on a character lamp of bleaching agent so that the bleaching agent is supplied (FIG. 3). , FIG. 4). In addition,
Even if a detergent is added at the time of bleaching or a bleaching agent is usually added at the time of washing, there is no adverse effect on the finish.

As described above, by providing a bleaching course suitable for bleaching tableware and the like, the bleaching and drying of tableware and the like can be performed fully automatically, and the physical burden can be reduced. It can prevent rough hands and can achieve effective bleaching with low energy consumption and low noise. Further, when a bleaching-only course is selected, continuous injection is performed in the initial stage of the operation and control is performed so as to perform intermittent injection thereafter, so that operation with lower noise and energy saving can be realized. In addition, the operation unit has a display means for displaying that the bleach-only course is being operated, so that the user does not accidentally turn off the power switch, tableware wet with bleach washing water when trying to put in and out tableware, etc. Do not touch directly with your hands.

Further, by providing a pH detecting means for detecting the pH of the washing water, even if the selection of the operation course of the dishwasher and the charging agent (detergent or bleaching agent) are different, the user can use it. It does not cause insufficient washing or bleaching of tableware.

Further, the operation unit is provided with a dispensing agent display device for displaying the type of the dispensing agent, so that the user can confirm the type of the dispensing agent. Can be input.

Also, during the operation of the bleach-only course, the bleaching process
In the rinsing process, the washing water is not heated, and only the subsequent heating and rinsing course is controlled to perform the heating and rinsing until the temperature reaches a predetermined temperature. A dryer can be realized.

The intermittent operation in the bleaching process described in this embodiment, the display of the bleaching-only course, the display of the pH sensor, the type of the additive, and the heating of the washing water only in the heating rinsing process are not necessarily performed together. , Can be implemented independently.

[0035]

According to the present invention, there is provided a washing tank for accommodating a basket for washing an object to be washed, such as a tableware or the like, and a washing means for washing the object to be washed. A water supply unit for supplying cleaning water to the cleaning unit, a drainage unit, a drying unit, an operation unit having a course selection switch, a control unit for controlling the cleaning unit, the water supply unit, and the drainage unit; Fully automatic bleaching and drying of tableware etc. by providing a dedicated bleaching course for bleaching and drying tableware etc., and by providing a bleaching exclusive course suitable for bleaching tableware etc. Since it can be performed, the physical burden can be reduced, the hand can be prevented from being rough, and energy-saving, low-noise, and effective bleaching can be realized.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing the configuration of a dishwasher according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part showing a state where a pH sensor of the dishwasher is mounted.

FIG. 3 is an external perspective view of the dishwasher.

FIG. 4 is an explanatory diagram showing an operation concept of control means of the dishwasher.

FIG. 5 is a diagram showing an operation state of a washing pump of the dishwasher.

FIG. 6 is a diagram showing the relationship between the washing water temperature of the dishwasher and the time, and the operating state of the heating means.

FIG. 7 is a sectional view of a conventional dishwasher and dryer.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 20 Main body 21 Cleaning tank 22 Tableware basket 26 Water supply valve (water supply means) 27 Water level detection device 28 Heating heater (drying means) 29 Cleaning pump (cleaning means) 30 Cleaning nozzle (cleaning means) 31 Control device (control means) 33 Drainage Hose 34 Drainage pump (drainage means) 35 Blower (drying means) 36 Operation part 37 pH sensor (pH detection means) 38 Bleaching-only course display part (bleaching-only course display means) 39 Injectant type display part (bleaching agent type display device) ) 40 Driving course selection button 41 Thermistor

Claims (6)

[Claims] 1. A washing tank for accommodating a basket for washing an object to be cleaned, a basket for storing the basket for washing the object to be washed, a washing means for washing the object to be washed, and a washing means for the washing means. Water supply means for supplying water, drainage means, drying means, an operation section having a course selection switch, control means for controlling the washing means, water supply means, drainage means, and a main body for storing them A dishwasher / drier characterized by providing a dedicated bleaching course for bleaching and drying dishes. 2. In a bleaching step in which a bleaching agent is charged by selecting a bleaching-dedicated course, the control means controls the cleaning means to perform continuous injection at the beginning of operation and thereafter to perform intermittent injection. The dishwasher / dryer according to claim 1. 3. The dishwasher / dryer according to claim 1, wherein the operation unit includes a bleaching-only course display unit for displaying that the bleaching-only course is operating. 4. The main body has a pH detecting means for detecting the pH of the washing water, and temporarily stops the operation if the pH of the washing water is out of the range of the pH value of the washing water set according to each operation course. The dishwasher / dryer according to any one of claims 1 to 3, further comprising a display unit for prompting a correct detergent or bleaching agent. 5. The dishwashing and drying apparatus according to claim 1, wherein the operation unit is provided with a dispensing agent display device for displaying a type of the dispensing agent charged into the washing tank. Machine. 6. When the bleach-only course is operated, the control means controls so as not to heat the washing water in the bleaching step and the rinsing step, and to carry out the heating and rinsing to a predetermined temperature only in the subsequent heating and rinsing course. The dishwasher / dryer according to any one of claims 1 to 5, wherein: