JP2011050423A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a user to securely confirm whether a dishwasher is properly set and whether there is no such malfunction as water leakage in a short period after setting the dishwasher. <P>SOLUTION: The dishwasher includes: a washing tub for storing articles to be washed such as dishes; water feeding means for feeding water into the washing tub; heating means for heating washing water within the washing tub; a washing pump for pressurizing the washing water to be fed into the washing tub; draining means for draining water within the washing tub to the outside; and control means for controlling overheating means and the washing pump. The dishwasher has a test operation course, separate from prescribed courses, for performing a series of motions of water feeding, washing and draining in a short period of time. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

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

  A conventional dishwasher of this type has been configured as shown in FIGS. 3 and 4 (see, for example, Patent Document 1). The dishwasher main body 101 is provided with a washing tank 102 inside, and water or hot water is supplied into the washing tank 102 by a water supply valve 103. A drain port 104 is provided at the bottom of the cleaning tank 102, and a cleaning pump 105 is connected to the drain port 104 and driven by a motor. The cleaning pump 105 circulates cleaning water into the cleaning tank 102. is doing.

  Further, a heater 107 for heating the cleaning water is provided between the cleaning nozzle 106 and the bottom of the cleaning tank 102, and the tableware 108 (object to be cleaned) can be arranged in an orderly manner above the cleaning nozzle 106. Is effectively washed by installing a tableware basket 109 configured to effectively spray the tableware 108 onto the tableware 108. Further, the drain pump 110 discharges the washing water to the outside through the drain path 111 and the drain hose 112 connected to the end of the drain path 111.

  The installation of the dishwasher will be described.

  Usually, since the water supply hose 113 and the drainage hose 112 are included in the product, the user connects the water supply hose connection part 114 to the water supply connection part 115 and connects the other end of the water supply hose 113 to the water supply when installing the dishwasher. To do. Further, the drain hose 112 is connected to the end of the drain path 111.

JP 2003-339608 A

  However, in the conventional dishwasher, when the water supply hose connection part 114 is not properly screwed to the water supply connection part 115 or the drainage hose 112 is not properly connected to the end of the drainage path 111, water leaks during operation. There is a risk of causing.

  If the user checks the water leak in the presence of the witness when operating the dishwasher for the first time, even if a water leak occurs due to the above reasons, the damage can be prevented in advance. When a predetermined course is operated, it takes at least 115 minutes to start operation, perform water supply / washing, and perform the first drainage process. Therefore, it is considered that the water leakage check with the user present is not performed in many cases.

  Therefore, it is conceivable that a course for performing water supply, washing, and draining operations in a short time is provided as a predetermined course (for example, a pre-wash course), but it is not possible to increase such courses that are not frequently used except during initial installation. There is a risk that the user's course selection may be complicated.

The present invention solves the above-mentioned conventional problems, and after a user installs a dishwasher, in order to make sure that the installation is performed correctly and that there are no problems such as water leakage, in a short time. belongs to.

  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, water supply means for supplying water into the washing tank, and washing water in the washing tank. Heating means for heating, cleaning pump for pressurizing the cleaning water and supplying it into the cleaning tank, draining means for discharging the water in the previous cleaning tank to the outside of the apparatus, and control means for controlling the overheating means and the cleaning pump And a course for trial operation that performs a series of operations of water supply, cleaning, and drainage is provided separately from the predetermined course.

  Thereby, after a user installs a dishwasher, it is for confirming whether installation is performed correctly and malfunctions, such as a water leak, do not arise in a short time.

  The dishwasher according to the present invention includes a washing tank for storing objects to be washed such as tableware, a water supply means for supplying water into the washing tank, a heating means for heating the washing water in the washing tank, and the washing water. A cleaning pump that pressurizes and supplies the water into the cleaning tank, a drainage means for discharging the water in the previous cleaning tank to the outside of the machine, and a control means for controlling the overheating means and the cleaning pump. A trial run course that performs a series of operations is provided separately from the prescribed course, and after the user installs the dishwasher, it is confirmed that the installation is done correctly and there are no problems such as water leakage. It can be carried out reliably in time.

The system block diagram of the dishwasher in embodiment of this invention Detailed view of the operation part of the dishwasher in the embodiment of the present invention System configuration of conventional dishwasher Enlarged view of water hose connection part of conventional dishwasher

  According to a first aspect of the present invention, there is provided a cleaning tank for storing an object to be cleaned such as tableware, a water supply means for supplying water into the cleaning tank, a heating means for heating the cleaning water in the cleaning tank, and adding the cleaning water. A cleaning pump that pressurizes and supplies the cleaning tank, drainage means for discharging the water in the previous cleaning tank to the outside of the machine, and control means for controlling the overheating means and the cleaning pump. A trial run course that performs a series of operations is provided separately from the predetermined course, and after the user installs the dishwasher, it is confirmed that the installation is done correctly and there are no problems such as water leakage. And can be implemented reliably.

  The second invention is characterized in that the predetermined course cannot be operated until the trial run course is operated at least once or more, and the installation is performed correctly and does not cause problems such as water leakage. This is to ensure that the user confirms the above.

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

(Embodiment 1)
FIG. 1 is a system configuration diagram of a dishwasher in an embodiment of the present invention, and FIG. 2 is a detailed view of an operation unit of the dishwasher in an embodiment of the present invention.

  A washing tank 2 is provided inside the main body 1 of the dishwasher in the present embodiment, and four dish baskets in which objects to be cleaned such as tableware 3 are installed are accommodated in the washing tank 2.

  An opening 5 is provided on the front surface of the cleaning tank 2, and the opening 5 is opened and closed by a door body 6.

  A cleaning nozzle (cleaning means) 7 for injecting cleaning water onto the object to be cleaned is provided at the bottom of the cleaning tank 2 and presses the cleaning pump 8 and the cleaning pump 8 that pressurize the cleaning water and supply the cleaning water to the cleaning nozzle. A motor 9 is provided outside the bottom surface of the cleaning tank 2.

  Further, a cleaning water reservoir 10 for storing cleaning water and a heating means (heater) 11 for heating the cleaning water are provided at the bottom of the cleaning tank 2 near the opening 5.

  A thermistor (temperature detection means) 13 for detecting the temperature of the cleaning water is provided on the outer wall of the bottom surface of the cleaning tank 2, and a water level detection switch 14 for detecting the water level of the cleaning water accumulated at the lower part of the cleaning tank 2 is provided on the outer wall of the side surface of the cleaning tank 2. Is provided.

  Similarly, the control device 16 disposed in the lower part of the washing tank performs a series of sequential operations of washing, rinsing and drying the tableware 3 and processes signals from the water level detection switch 14 and the temperature sensor 13.

  A water supply valve (water supply means) 15 for supplying water into the cleaning tank 2 is attached to the outer wall of the cleaning tank 2, and a water supply hose 16 is connected thereto. A drain hose 18 is connected to the drain path end 17.

  An operation unit 20 is provided on the front surface of the dishwasher body 1. In addition to the power switch 21 and the start switch 24, the operation unit is provided with a course selection switch 22 for selecting a course to be operated and a drying time selection switch 23 for selecting a time for a drying process.

The operation | movement and effect | action are demonstrated about the dishwasher in this Embodiment comprised as mentioned above.
An object to be cleaned such as tableware is set in the tableware basket 4 and stored in the cleaning tank 2. After the user puts in the detergent, the door 5 closes the opening 5 of the cleaning tank 2 and presses the power switch 21. Turn on the power. Next, the course to be driven is selected by pressing the course selection button 22. In a typical dishwasher, in addition to a standard course for cleaning standard contamination, a course for cleaning at high temperature, a course for cleaning a small amount of dish, a course for cleaning in a shorter time than the standard course, Courses that only dry are provided. Next, the drying time selection switch 23 is pressed to select the drying time.

When the start button 24 is pressed after the course selection and the drying time are finished, the operation is started.
In the cleaning process, the water supply valve 15 operates to supply water to the cleaning tank 2 to a predetermined water level obtained by the water level detection switch 14.

  When the water supply is completed, the cleaning pump 8 is operated, and the cleaning water is sprayed from the cleaning nozzle 7 toward the object 3 to be cleaned, and at the same time, the heating means 11 is operated to heat the cleaning water. The temperature of the cleaning water is detected by the thermistor 13, and the cleaning process ends when a predetermined water temperature is reached and a predetermined cleaning time has elapsed.

  When the cleaning process is completed, a rinsing process is performed, and then a heating rinsing process is started.

In the heating rinsing process, as in the cleaning process, the cleaning water reaches a predetermined temperature and ends after a predetermined rinsing time has elapsed.

  When the heating rinsing process is completed, the drying process is started. Thereafter, when the drying process time selected at the start of operation elapses, the operation ends and the power is automatically turned off.

  Next, the operation of the trial run course will be described.

  The user presses the power switch 21 to turn on the power. Next, the course selection 22 switch and the drying time selection switch 23 are simultaneously pressed for about 3 seconds. Thereby, the course for trial run is received. At this time, since the LED display of the operation unit indicating the selected course and the drying time is different from that during a predetermined course operation such as a standard course, the user can know that a trial run course has been accepted.

  Next, when the start button 24 is pressed, the water supply valve 15 is operated to supply water to the cleaning tank 2 to a predetermined water level obtained by the water level detection switch 14.

  At this time, when a predetermined water level is not detected for a certain period of time (about 5 minutes), it is determined that the water tap is not opened, an abnormality is notified, and the operation is stopped.

  When the water supply is completed, the cleaning pump 8 operates and the cleaning water is jetted from the cleaning nozzle 7. In the trial run course, the heating means 11 is not operated.

  Thereafter, the cleaning pump 8 is operated for a certain time (about 2 minutes), and then the water in the cleaning tank is discharged out of the apparatus. The drainage of the washing water is performed by rotating the motor 9 that drives the washing pump 8 in the reverse direction to that during washing.

  At this time, if the water level detection switch 14 detects the presence of water after the drainage operation has been performed for a certain time (about 3 minutes), it is determined that the drainage has not been performed normally due to bending of the drainage hose 18 or the like. Then, the abnormality is notified and the operation is stopped.

  When the water level detection switch 14 detects the absence of water after the drainage operation, the operation end buzzer is heard and the operation is terminated. At the same time, the control means 16 memorizes that the trial run course has been normally completed.

  The time required for the above trial operation is about 4 minutes from the start to the end of the operation.

  Thus, according to the present embodiment, after the user installs the dishwasher, it can be confirmed in a short time and surely whether the installation is correctly performed and problems such as water leakage do not occur. .

  Moreover, since the heating means 11 is not operated in the trial run course, the washing water does not become hot water. Therefore, even if water leaks due to poor connection of the drainage hose 18 or the like, there is no concern that the user will be burned by the drained water. .

  In addition, since the trial run course is provided separately from the predetermined course, it is not necessary to increase the types of the predetermined course, so that the user's course selection can be prevented from being complicated.

Further, the predetermined course may not be driven until the trial run course is driven at least once as described in claim 2. When the user tries to drive a predetermined course in a state where the trial run course is not normally completed, an abnormality is notified immediately after the start of driving and the driving is stopped. As described above, whether or not the trial run course is normally completed is stored in the control means. Thereby, since confirmation of installation by trial operation can be carried out by the user with certainty, a safer dishwasher can be provided.

  As described above, the dishwasher according to the present invention, after the user installs the dishwasher, makes sure that the installation is performed correctly and that there are no problems such as water leakage in a short time and surely. Therefore, it is useful as a dishwasher with higher safety.

2 Washing tank 11 Heating means 16 Water supply hose 18 Drainage hose 16 Control device 20 Operation unit

Claims (2)

A cleaning tank for storing an object to be cleaned such as tableware, a water supply means for supplying water into the cleaning tank, a heating means for heating the cleaning water in the cleaning tank, and pressurizing the cleaning water into the cleaning tank. A trial run that includes a supply pump, a drainage means for discharging the water in the previous washing tank to the outside of the machine, and a control means for controlling the overheating means and the wash pump, and performing a series of operations of water supply, washing and drainage. A dishwasher characterized in that a special course is provided separately from the predetermined course. 2. The dishwasher according to claim 1, wherein the predetermined course cannot be operated until the trial operation course is operated at least once.