JP2006204960A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem wherein bacteria strong against the high temperature cannot be sterilized only by washing of dish washing, since a conventional dishwasher is set constant for approximately one minute at 69°C in maximum temperature of an automatic hot water rinsing course. <P>SOLUTION: Among respective setting courses, at least one setting course set with the maximum rinsing temperature to the temperature different from the rinsing maximum temperature of the other setting course. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a dishwasher and a dish dryer for washing and drying dishes.

  Conventionally, this type of dishwasher has an external appearance as shown in FIG. 1, and the configuration of the parts is as shown in FIG.

  That is, a cleaning tank 2 made of stainless steel or the like is provided inside the main body 1, and water or hot water is supplied into the cleaning tank 2 by a water supply valve 3.

  During the operation of the apparatus, the washing water is jetted from the washing nozzle 5 of the washing tank by the washing pump 4 attached to the lower part of the washing tank 2, and circulates inside to wash dishes in the inside.

  Moreover, when this washing | cleaning process is complete | finished, washing water is drained with the drainage pump 6 attached to the washing tank lower part.

  Here, about the process of water supply and drainage, in order to drain the water remaining inside at the start of the process, after performing the drainage process, the water supply is started and the water supplied is heated while being heated. After cleaning, drain the dirty cleaning water.

  Then, after supplying water according to a process, it is the process of performing washing or rinsing and repeating drainage.

  Here, conventionally, an operation course such as (strong) (standard) (swift) can be selected in accordance with the degree of tableware contamination in the automatic operation course as shown in the process diagram of FIG.

  At this time, each course has a structure in which the characteristics of each course are given according to the time of main washing, the number of times of water rinsing, and the time, and the maximum temperature of the hot water rinsing course is constant for a certain period of time.

  In addition, in the dry-only course, as shown in FIGS. 5 and 6, in the dry-only course using hot water rinsing, each course is configured to show the characteristics of each course with hot air or room temperature blowing time, The maximum temperature of the hot water rinse course was constant for a certain period of time.

  In the case of performing only drying by hot air blowing without rinsing with hot water, the maximum temperature of hot air blowing during drying was a constant temperature.

JP-A-5-207957

  As described above, in the conventional dishwashing, the hot water rinsing maximum temperature of the automatic course is 69 ° C., which is a constant setting for about 1 minute.

  For this reason, there has been a problem that bacteria resistant to high temperatures cannot be sterilized by dishwashing.

  For this reason, the dishwasher of this invention sets the automatic driving | running course which added the function which includes the germicidal action of bacillus bacteria, such as colon_bacillus | E._coli, in process, and enables it to select according to a customer's request | requirement.

  For example, it is known that bactericidal action can be obtained for E. coli such as O-157 by performing a sterilization process at 75 ° C. for 1 minute. From this, it is effective to perform warm water rinsing above this temperature.

  However, when the hot water rinsing temperature is raised to a high temperature, there is a problem that plastics and crystal glass are deformed and discolored.

  For this reason, the dishwasher which can set the automatic course which changed the rinse temperature according to the condition at that time is needed.

  Accordingly, an object of the present invention is to provide a dishwasher in which an automatic operation course to which a function of including bactericidal action of bacteria such as Escherichia coli in the process is added and which can be selected according to a customer's request is provided. .

  In order to achieve the above object, the present invention is characterized in that two or more kinds of strokes can be selected according to the degree of contamination of each tableware or the user's request by inputting from the control panel. Thereafter, in the dishwasher having the process of performing the rinsing process, the dishwasher has a control means for maintaining the maximum rinsing temperature for a predetermined time according to each setting course, and at least one of the sustained times is different from the set value of the other process selection It is in having been set to.

  According to the present invention, it is possible to supply a dishwasher that can set an automatic course in which the rinsing temperature is changed according to the situation at that time.

  In addition, even in a dishwasher or dish dryer having a course of only a drying function, it is possible to supply equipment capable of setting an automatic course in which not only the rinsing temperature but also the drying air temperature is changed.

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

  1 is a perspective view showing the appearance of a dishwasher according to the present invention, FIG. 2 is a longitudinal side view shown in FIG. 1, FIG. 3 is a conventional process diagram, FIG. 4 is a process diagram of the present invention, FIG. These are the process diagrams with hot water rinsing in the conventional and the drying-only course of the present invention. FIG. 6 is a process diagram of only hot air drying without hot water rinsing in the conventional and exclusive drying course of the present invention.

  1 to 2 indicate the same parts and the same parts.

  In FIG. 2, as described above, the dishwasher is provided with a cleaning tank 2 made of stainless steel or the like inside the main body 1, and water or hot water is supplied into the cleaning tank 2 by a water supply valve 3. The

  During the operation of the apparatus, the washing water is jetted from the washing nozzle 5 of the washing tank 2 by the washing pump 4 attached to the lower part of the washing tank 2 and circulates inside to wash dishes stored in the inside. .

  When this cleaning process is completed, the cleaning water is drained by the drain pump 6 attached to the lower part of the cleaning tank 2.

  After performing the water supply process necessary for cleaning after this, if the temperature required for cleaning is not reached, heating the supplied water, or if the temperature already required for cleaning is reached Rinse washing is performed without heating, and after rinsing washing, dirty rinse washing water is drained.

  At this time, according to the process of each set course, after performing water supply, the process of washing for a certain period of time, rinsing for a certain period of time, and draining is repeated.

  Here, in the present invention, the maximum temperature for rinsing can be arbitrarily set for each setting course.

  At this time, a temperature display LED or the like may be attached to the panel 7 in FIG. 8 so that an arbitrary maximum rinsing temperature can be set by a switch.

  As an example, an automatic driving course with an additional function of including the bactericidal action of bacillus such as Escherichia coli in the process is set so that it can be selected according to customer requirements.

  A stroke diagram as one embodiment is shown in FIG.

  There are three courses that are powerful, standard, and quick.

  As the powerful course, an automatic operation course with the function to include the bactericidal action of E. coli and other fungi in the process is added, and the maximum temperature of the hot water rinse can be selected as 75 ° C according to the customer's request. .

  This is because it is known that bactericidal action can be obtained for E. coli such as O-157 by performing a sterilization process at 75 ° C. for 1 minute.

  As a strong course, it is effective to carry out warm water rinsing at 75 ° C. or higher. In general, as a warm water rinsing course, it is effective to increase the maximum temperature as much as possible from the viewpoint of shortening the cleaning cycle time.

  This is because, if the rinsing temperature is high, only the internal steam is released during drying, and sufficient drying can be obtained with this residual heat.

  However, when the hot water rinsing temperature is raised to a high temperature, there is a problem that plastics and crystal glass are deformed and discolored.

  For this reason, in the quick course, an automatic course is set in which the rinse temperature is lowered to about 50 ° C.

  In addition, as a standard course, an automatic course rinsing temperature of about 69 ° C. is set so that heat is not easily applied to ordinary plastic.

  In addition, when the maximum temperature cannot be set to a very high temperature, it is also effective to increase the holding time of the maximum temperature so as to cope with it.

  In general, the relationship between the sterilization temperature of Escherichia coli and the heating temperature is as shown in FIG.

  Therefore, it is possible to obtain the same effect by changing the rinsing maximum temperature holding time for each set course.

  In the drying course, until now, the temperature during drying has not reached the temperature at which the sterilizing effect increases, and the temperature inside the drying chamber cannot be increased up to the sterilizing effect temperature.

  FIG. 5 and FIG. 6 show stroke diagrams of one embodiment of the conventional drying-only course and the course of the present invention.

  As shown in FIG. 5, when the hot water rinsing is performed on the dry-only course, the automatic course of the process is set to three courses of strong, standard and soft.

  It is effective that the maximum rinsing temperature is about 75 ° C., 69 ° C., and 50 ° C. as described above.

  In addition, as shown in FIG. 6, even if the drying process is performed only by a hot air fan, by changing the maximum temperature of the blast, the sterilization effect and the drying of dishes that cannot increase the temperature can be met. A dry course can be set.

  In this case, it can be implemented by attaching a temperature sensor inside the main body of the exhaust port 8 of FIG. 1 and controlling the air blowing temperature.

It is a perspective view which shows the whole external appearance shape of the dishwasher which concerns on this invention. It is a vertical side view which shows the internal structure of the dishwasher in this invention. It is a vertical side view which shows the internal structure of the dishwasher of a conventional system. It is a washing process figure in the present invention. It is a washing process figure of a conventional system. It is a course course only for drying in a conventional system and the present invention. It is a figure which shows the relationship between the disinfection temperature of Escherichia coli, and heating temperature. It is a figure which shows the display part of the panel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Main body, 2 ... Cleaning tank, 3 ... Water supply valve, 4 ... Cleaning pump, 5 ... Cleaning nozzle, 6 ... Drain pump, 7 ... Panel, 8 ... Exhaust port.

Claims (2)

By inputting from the control panel, two or more kinds of setting courses can be selected according to the degree of dirt of each tableware and the user's request, and in the dishwasher having the process of performing the rinsing process after the process of cleaning the dishes,
A dishwasher characterized by having control means for maintaining a maximum rinsing temperature for a predetermined time according to each setting course, and setting at least one of the durations to be different from a setting value of other stroke selection. In the dishwasher or dish dryer that can set two or more setting courses according to the conditions of each tableware and the user's request by input from the control panel, and can set the dedicated drying process,
The dishwasher is characterized in that an arbitrary drying blast maximum temperature can be selected according to each setting course, or a different drying blast maximum temperature and time setting are incorporated in each setting course.

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