JP2006110151A - Dish washer/dryer and dish washing/drying control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dish washer/dryer and a dish washing/drying control method eliminating discomfort felt by a user by performing air sending control in a heat drying process in the dish washer/dryer. <P>SOLUTION: This dish washer/dryer executes washing, rinsing and heat drying by a sequence control after the user puts tableware and the like in a chamber. The dish washer/dryer is constituted of at least a water feed valve controlling to feed water in the interior of a washing tub, a heating means heating water and air in the interior of the washing tub, a temperature detecting means detecting the temperature in the interior of the washing tub, a heat drying means drying the interior of washing tub by heating, an air sending means sending the air to the interior of the washing tub, and an air sending control means controlling the air sending means. The air sending control means intermittently actuates the air sending means from the start to the finish of the heat drying by the heat drying means and controls to gradually elongate the operation time with the lapse of a time. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a dishwashing / drying apparatus and a dishwashing / drying control method that eliminates discomfort to the user due to the discharge of steam by performing ventilation control in a heating / drying process in the dishwashing / drying apparatus.

  The sequence control in the conventional dishwashing / drying apparatus is mainly composed of washing, rinsing and drying processes. The washing process includes a pre-washing process and a main washing process, and after removing rough dirt in the pre-washing process, the dishes are cleaned in the main washing process. The next rinsing step includes a water rinsing step and a hot water rinsing step. After the water rinsing step, the hot water rinsing step is performed to remove dirt and / or detergent adhering to the dishes.

  The final drying step includes heating means and air blowing means for heating and drying the dishes. The heating means raises the temperature of the air inside the warehouse, and the air blowing means sucks air outside the warehouse, and discharges high humidity air inside the warehouse to the outside. The dishwashing / drying apparatus efficiently dries dishes by the heating means and the air blowing means.

For example, a tableware drying apparatus described in Japanese Patent Application Laid-Open No. 2001-258817 is provided with an exhaust port for discharging air that has sufficiently absorbed moisture at the lower part of the tableware storage room. The outside air is taken in by the blower fan, heated by the heater, becomes warm and dry air, and is supplied to the tableware storage room through the intake passage and the intake port. The air supplied to the tableware storage room moves and stays above the tableware storage room, absorbs moisture sufficiently, gradually decreases in temperature, becomes moist and cold air, and is below the tableware storage room. Descent. When heated new dry warm air is successively supplied into the tableware storage room, the air staying in the upper part of the tableware storage room falls, and the saturated air staying in the lower part is discharged from the exhaust port.
JP 2001-258817 A

  The conventional tableware drying apparatus, after finishing the washing process and the rinsing process, discharges the rinsing water and proceeds to the heating and drying process. However, the steam generated in the rinsing process remains in the cabinet. In the heating and drying step, air heated by the heating means is circulated in the cabinet, and at the same time, air outside the warehouse is sucked in with a constant air volume by the blowing means, and high-humidity air in the cabinet is discharged outside the warehouse. . However, when the air containing moisture immediately after the start of the heating and drying process is exhausted from the exhaust port, the user feels uncomfortable.

  In order to solve the problems as described above, the present invention controls to gradually discharge while suppressing the air volume while steam containing a lot of moisture is left in the cabinet in the heating and drying process. It is an object of the present invention to provide a dishwashing / drying apparatus and a dishwashing / drying control method for exhausting air that has been dried at a time when moisture has decreased.

(First invention)
The dishwashing / drying apparatus according to the first aspect of the present invention is capable of processing washing, rinsing, and heating / drying by sequence control, and is controlled to supply water for performing the washing and / or rinsing into the washing tank. Heating means for heating water and air in the cleaning tank; temperature detecting means for detecting the temperature of water and air in the cleaning tank; heating drying means for heating and drying the cleaning tank; A blower means for sending air into the tank, and a blower control means for operating the blower means intermittently from the start to the end of the heat drying by the heat drying means and gradually increasing the operation time as time passes. It is provided with at least.

(Second invention)
The dishwashing / drying apparatus according to the second aspect of the present invention is capable of processing washing, rinsing, and heating / drying by sequence control, and is controlled to supply water for washing and / or rinsing into the washing tank. Heating means for heating water and air in the cleaning tank; temperature detecting means for detecting the temperature of water and air in the cleaning tank; heating drying means for heating and drying the cleaning tank; Air blowing means for sending air into the tank, and air blowing that causes the air blowing means to operate intermittently from the start to the end of heat drying by the heat drying means, and gradually increases the operation time until a certain temperature is reached. And at least a control means.

(Third invention)
The dishwashing / drying apparatus according to the third aspect of the present invention is a water supply valve that can process washing, rinsing, and heat-drying by sequence control, and controls the supply of water for washing and / or rinsing into the washing tank. Heating means for heating water and air in the cleaning tank; temperature detecting means for detecting the temperature of water and air in the cleaning tank; heating drying means for heating and drying the cleaning tank; The air blowing means for sending air into the tank, and the air blowing means are operated intermittently from the start to the end of the heat drying by the heat drying means, and the operation time is gradually increased until a certain temperature is reached, It comprises at least air blowing control means that operates continuously after reaching the constant temperature.

(Fourth invention)
The dishwashing / drying apparatus according to the fourth aspect of the present invention is a water supply valve which can process washing, rinsing and heating / drying by sequence control, and controls to supply water for washing and / or rinsing into the washing tank. Heating means for heating water and air in the cleaning tank; temperature detecting means for detecting the temperature of water and air in the cleaning tank;
A heating and drying means for heating and drying the inside of the washing tank, a blowing means for sending air into the washing tank, the blowing means is operated intermittently from the start to the end of heating and drying by the heating and drying means, and a certain amount The operation time is gradually increased until time elapses, and at least air blowing control means that operates continuously after the elapse of the predetermined time is provided.

(Fifth invention)
The dishwashing / drying apparatus according to a fifth aspect of the invention is characterized in that the air blowing means according to the first to fourth aspects uses a fan motor that controls the amount of air blown by controlling the rotation by phase control.

(Sixth invention)
The dishwashing / drying control method of the sixth invention has at least a washing step, a rinsing step, and a heating / drying step, and these steps are processed by sequence control, and water is supplied into the washing tank. While controlling the valve and washing and / or rinsing steps of the tableware and the like for heating and controlling the water and air, heating the temperature of the air in the washing tank, and intermittently blowing the air from the start to the end of the heat drying It is characterized by comprising at least a heating and drying step for controlling the air blowing means to operate and gradually increase the operation time with the passage of time.

(Seventh invention)
The tableware washing and drying control method of the seventh invention has at least a washing step, a rinsing step, and a heating and drying step, and these steps are processed by sequence control. While controlling the valve and washing and / or rinsing steps of the tableware and the like for heating and controlling the water and air, heating the temperature of the air in the washing tank, and intermittently blowing the air from the start to the end of the heat drying A heating and drying step of controlling the blowing means so as to continuously blow air after a predetermined time has elapsed or a predetermined temperature has been reached. It is characterized by that.

  According to the present invention, the air blowing control means operates the air blowing means intermittently from the start to the end of the heat drying by the heat drying means, and controls the operation time gradually longer as time passes. After a predetermined time elapses or a predetermined temperature is reached, air with low humidity is urged out of the cabinet to prevent the user from feeling uncomfortable.

  According to the present invention, the air blowing control means operates the air blowing means intermittently from the start to the end of the heat drying by the heat drying means, and controls the operation time gradually longer as time passes. After exhausting a low amount of steam with high humidity at a predetermined time, or after reaching a predetermined temperature, control to continue the operation time, letting out low humidity air to the outside of the chamber, Avoid discomfort.

  According to the present invention, in the heating and drying process, the steam is controlled to be discharged at a timing when the steam is left in the cabinet, and the steam in the cabinet is gradually exhausted to the outside to reduce the humidity. At this timing, the air is exhausted at a stroke so as not to make the user uncomfortable.

(First invention)
The dish washing / drying apparatus of the first invention can process washing (pre-washing, main washing), rinsing (rinsing with water, rinsing with hot water), and heating and drying by sequence control after putting tableware and the like in the cabinet. Moreover, the dishwashing drying apparatus of 1st invention can also select and process at least one of washing | cleaning, a rinse, and heat drying. In order to perform the treatment, the dishwashing / drying apparatus includes a water supply valve that controls to supply water to be washed and / or rinsed into the washing tank, and water and air in the washing tank at a predetermined temperature. Heating means for heating in, temperature detecting means for detecting the temperature of water and air in the cleaning tank, heating and drying means for heating and drying the inside of the cleaning tank, and air blowing means for sending air into the cleaning tank, It comprises at least air blowing control means for controlling the air blowing means. The washing and rinsing can be both or either.

  The air blowing control means operates the air blowing means intermittently from the start to the end of the heat drying by the heat drying means, and controls the operation time gradually longer as time elapses. Even when the humidity in the cabinet is high, the dishwashing / drying apparatus does not give unpleasant feeling to the user by expelling steam out of the cabinet because the operation time of the blowing means is short.

(Second invention)
The tableware washing and drying apparatus of the second invention is different from the first invention in the air blowing control means. That is, the air blowing control means of the second invention operates the air blowing means intermittently from the start to the end of the heat drying by the heat drying means, and gradually increases the operation time until a certain temperature is reached. The intermittent operation is gradually increased until the first invention reaches a certain time, whereas the intermittent operation is gradually increased until the first invention reaches a certain temperature. The tableware washing and drying apparatus according to the second aspect of the present invention gradually performs heating and drying in the cabinet without discharging steam at once until the temperature reaches a certain temperature.

(Third invention)
The tableware washing and drying apparatus of the third invention is different from the first invention and the second invention in the air blowing control means. That is, the air blowing control means of the third invention operates the air blowing means intermittently from the start to the end of the heat drying by the heat drying means, and gradually increases the operation time until a certain temperature is reached, After reaching the constant temperature, it operates continuously. That is, the tableware washing and drying apparatus of the third aspect of the invention is controlled so as to suppress the air volume in a time zone in which steam remains in the cabinet, and the steam is gradually discharged.

(Fourth invention)
The tableware washing and drying apparatus of the fourth invention is different from the first invention to the third invention in air blowing control means. That is, the air blowing control means of the fourth invention operates the air blowing means intermittently from the start to the end of heat drying by the heat drying means, and gradually increases the operation time until a certain time elapses, It operates continuously after the predetermined time has elapsed. The blowing control means of the fourth aspect of the invention controls so as to increase the amount of blown air and discharge it all at once when the steam is reduced to some extent.

(Fifth invention)
In the tableware washing and drying apparatus of the fifth invention, the air blowing means in the first to fourth inventions comprises a fan motor, and the rotation of the air flow is controlled by phase control.

(Sixth invention)
The dishwashing / drying control method of the sixth invention has at least a washing step, a rinsing step, and a heat drying step, and these steps are processed by sequence control. In the washing and / or rinsing process of dishes, etc., the water supply valve for supplying water into the washing tank is controlled to perform washing (pre-washing, main washing) and rinsing (water rinsing, hot water rinsing) processing, The water and air are heated and controlled.

  The heating and drying step is controlled so that the temperature of the air in the cleaning tank is heated, and the blowing unit operates intermittently from the start to the end of the heating and drying, and the operation time is gradually increased as time passes. The control of the blowing means in the heating and drying step is to exhaust the gas little by little when the humidity in the cabinet is high, and forcibly exhaust the remaining steam to the outside after the humidity decreases.

(Seventh invention)
The tableware washing and drying control method of the seventh invention differs from the sixth invention in controlling the blowing means. That is, in the heat drying process, the control of the blowing means according to the seventh aspect of the invention heats the temperature of the air in the cleaning tank, and the blowing means operates intermittently from the start to the end of the heating and drying, gradually with time. The operation time is increased, and after a predetermined time has elapsed or a predetermined temperature is reached, the air is continuously blown. The seventh aspect of the present invention exhausts the steam out of the container earlier than the sixth aspect of the invention.

  FIG. 1 is a schematic configuration diagram for explaining a dishwashing / drying apparatus according to an embodiment of the present invention. In FIG. 1, a dishwashing / drying apparatus includes a dishwashing / drying chamber 11, a heater 12 for performing heating and drying, a pump 13 for supplying washing and rinsing water to the dishwashing / drying chamber 11, and a temperature for drying. It comprises at least a fan motor 14 that sends high wind and a control device 15 that controls the heater 12, the pump 13, the fan motor 14, and the like. In the dish washing / drying chamber 11, jetting portions 112 and 113 for jetting boomerang-shaped water or hot water are provided.

  The control device 15 determines the temperature and water in the dishwashing / drying chamber 11 based on information from the temperature detection means 151 that detects the temperature in the dishwashing / drying chamber 11 and the water level detection means 152 that detects the water level. The water supply valve 153 is controlled to supply up to the water level. In addition, the display operation unit 155 can arbitrarily set times such as water supply, pre-washing, main washing, water rinsing, hot water rinsing, heat drying, and the like, and the user can check these on the display unit.

  The speaker 154 is for notifying the user of the state set by the display operation unit 155 by voice or the like. Further, the display operation unit 155 can select only washing or rinsing depending on the setting. If necessary, the display operation unit 155 can arbitrarily select the temperature, time, etc. of washing, rinsing, and heat drying.

  For example, courses are standard, meticulous, and fast. The standard course is, for example, washing at 57 ° C., rinsing twice with water for 1 minute, rinsing with hot water at 70 ° C., and drying at 70 ° C. for 20 minutes. Careful courses are, for example, washing 57 ° C., 1 minute water rinsing three times, 70 ° C. hot water rinsing, and drying at 70 ° C. for 30 minutes. The rapid course is, for example, washing at 50 ° C., rinsing twice with water for 1 minute, rinsing with hot water at 50 ° C., and drying at 70 ° C. for 10 minutes.

  FIGS. 2A and 2B are diagrams for explaining the energization waveform of the fan motor and the internal control air volume in the tableware washing and drying apparatus according to the embodiment of the present invention. In FIG. 2A, the energization time of the fan motor 14 is controlled by the control device 15 so as to become gradually longer as t1 <t2 <t3. In the heat drying, the fan motor 14 changes the internal control air volume from m0 to m1 by setting the energization time to t1.

  Next, in the heat drying, the fan motor 14 sets the energization time to t2, so that the internal control air volume increases from m1 to m2, and the drying is performed quickly. Thereafter, the fan motor 14 increases the energization time from t2 to m3 by further increasing the energization time to t3, and exhausts the remaining dry air at once.

  In FIG. 2 (b), the energization time of the fan motor 14 is gradually increased as t1 <t2 <t3 and then made continuous, and the remaining dry air is forcibly exhausted more strongly than in FIG. 2 (a). The forced exhaust is performed after a preset time or after reaching a preset internal temperature.

  FIG. 3 is a flowchart for explaining an embodiment of the dishwashing / drying apparatus according to the present invention. In FIG. 3, the dishwashing / drying apparatus starts operation by pressing a start button (not shown) after completing the setting of the display operation unit 155 of FIG. 1 (step 311). In the washing process, when an instruction to start the operation is received, the control device 15 opens the water supply valve 153, and water supply into the refrigerator is started (step 312).

  The control device 15 monitors the water level in the warehouse by the water level detecting means 152 and checks whether or not a predetermined water level has been reached (step 313). When the control device 15 determines that the water level in the storage has not reached the predetermined water level, it continues water supply. When it is determined that the predetermined water level has been reached, the control device 15 closes the water supply valve 153 and ends the water supply (step 314). Next, the control device 15 rotates the pump 13 to pressurize and supply the water in the warehouse to the boomerang-shaped ejection parts 112 and 113 provided at the top and bottom of the warehouse, and starts the pre-washing process ( Step 315).

  The control device 15 heats the water by the heater 12 and rotates the pump 13 to pressurize and supply the water in the warehouse to the boomerang-shaped ejection portions 112 and 113 provided at the upper and lower sides in the warehouse. The main washing process is started (step 316). The main washing process is continued until the water temperature reaches the target temperature. The control device 15 checks whether or not the water temperature has reached the target temperature (step 317). When the controller 15 determines that the water temperature has not reached the target temperature, the controller 15 continues the heating.

  When it is determined that the water temperature has reached the target temperature, the control device 15 stops heating the heater 12 and reversely rotates the pump 13 to change the water supply to drainage (steps 318 and 319). The water rinsing process operates in the same manner as the main washing process. However, unlike the main washing process, the target temperature is set low or the heater 12 is not turned on and is continued for a certain period of time.

  The hot water rinsing process operates almost the same as the main washing process, but the target temperature is set higher. When the water temperature rises to about 55 ° C., steam in the cabinet begins to be generated. Since the target temperature of hot water rinsing differs for each operation course, no steam is generated in a course where the target temperature of hot water rinse is lower than 55 ° C, but steam is generated when the temperature is 55 ° C or higher.

  In the heat drying process, the heater 12 and the fan motor 14 are driven without supplying water, and the dishes are dried with warm air. The drying method includes a method of keeping the internal temperature constant at a relatively low temperature (for example, 70 ° C.) and prescribing the time, and a method of continuing until the temperature reaches a high temperature (for example, 90 ° C.). Immediately after the end of the hot water rinsing process, a lot of steam is still left in the chamber, so the control air volume of the fan motor 14 is gradually increased from the start of the heating and drying process, and the air and steam in the chamber are gradually discharged. (Step 320).

  The air volume control is facilitated by using the fan motor 14 and utilizing phase control. At the start of heating and drying, the control air volume is suppressed by shortening the energization, and the control air volume of the fan motor 14 is increased by increasing the energization time together with the elapsed time. There is no problem even if the control air volume in the cabinet becomes the normal air volume at the timing when the steam disappears.

  The control device 15 checks whether or not a predetermined time has elapsed (step 321). The control device 15 rotates the fan motor 14 by gradually increasing the control air volume within a certain time. When it is determined that the predetermined time has elapsed, the control device 15 ends the operation (step 322).

  FIG. 4 is a flowchart for explaining an embodiment of the dishwashing / drying apparatus according to the present invention. In FIG. 4, the dishwasher / dryer differs from FIG. 3 in step 421. That is, in step 421, when the control device 15 determines that the internal temperature has reached a predetermined temperature, the operation is terminated.

  FIG. 5 is a flowchart for explaining an embodiment of the dishwashing / drying apparatus according to the present invention. In FIG. 5, the dishwasher / dryer differs from FIG. 4 in steps 522 and 523. That is, in step 421, step 522, and step 523, the controller 15 switches the control of the fan motor 14 from intermittent control to continuous control after elapse of a predetermined time, and then reaches a predetermined time or a predetermined temperature. Stop driving at that time.

  FIG. 6 is a flowchart for explaining an embodiment of the dishwashing / drying apparatus according to the present invention. In FIG. 6, the tableware washing and drying apparatus is the same as FIG. 3 in step 321, and steps 522 and 523 are the same as in FIG. 5. That is, in step 321, step 522 and step 523, the control device 15 switches the control of the fan motor 14 from the intermittent control to the continuous control after reaching the predetermined temperature, and then reaches the predetermined time or the predetermined temperature. When it reaches, the operation is terminated.

  The embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the matters described in the claims. Is possible. The inside of the block configuration diagram described in the present embodiment is achieved by a known or well-known technique. A well-known or well-known thing can be utilized for the inside of the cabinet washing | cleaning drying apparatus in a present Example, a heater, a pump, a fan motor, a control apparatus, etc.

It is a schematic block diagram for demonstrating the dishwashing drying apparatus which is an Example of this invention. (Example 1) (A) and (b) is a figure for demonstrating the energization waveform of the fan motor and the internal control air volume in the dishwashing drying apparatus which is an Example of this invention. (Example 2) It is a flowchart for demonstrating one Example of the dishwashing drying apparatus in this invention. It is a flowchart for demonstrating one Example of the dishwashing drying apparatus in this invention. It is a flowchart for demonstrating one Example of the dishwashing drying apparatus in this invention. It is a flowchart for demonstrating one Example of the dishwashing drying apparatus in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Dishwashing drying room 12 ... Heater 13 ... Pump 14 ... Fan motor 15 ... Control apparatus 151 ... Temperature detection means 152 ... Water level detection means 153 ... Water supply valve 154 ... Speaker 155 ... Display operation unit

Claims (7)

In a dishwashing and drying apparatus that can process washing, rinsing, and heat drying by sequence control,
A water supply valve which controls to supply water for performing the washing and / or rinsing into the washing tank;
Heating means for heating water and air in the cleaning tank;
Temperature detecting means for detecting the temperature of water and air in the cleaning tank;
Heating and drying means for heating and drying the inside of the washing tank;
A blowing means for sending air into the cleaning tank;
The air blowing means for intermittently operating the air blowing means from the start to the end of the heat drying by the heat drying means, and gradually increasing the operation time as time passes,
A dishwashing and drying apparatus comprising: In a dishwashing and drying apparatus that can process washing, rinsing, and heat drying by sequence control,
A water supply valve which controls to supply water for performing the washing and / or rinsing into the washing tank;
Heating means for heating water and air in the cleaning tank;
Temperature detecting means for detecting the temperature of water and air in the cleaning tank;
Heating and drying means for heating and drying the inside of the washing tank;
A blowing means for sending air into the cleaning tank;
The air blowing control means that operates the air blowing means intermittently from the start to the end of the heat drying by the heat drying means, and gradually increases the operation time until reaching a certain temperature,
A dishwashing and drying apparatus comprising: In a dishwashing and drying apparatus that can process washing, rinsing, and heat drying by sequence control,
A water supply valve which controls to supply water for performing the washing and / or rinsing into the washing tank;
Heating means for heating water and air in the cleaning tank;
Temperature detecting means for detecting the temperature of water and air in the cleaning tank;
Heating and drying means for heating and drying the inside of the washing tank;
A blowing means for sending air into the cleaning tank;
The air blowing means is operated intermittently from the start to the end of the heat drying by the heat drying means, and the operation time is gradually increased until the constant temperature is reached. Air blowing control means operating in an automatic manner;
A dishwashing and drying apparatus comprising: In a dishwashing and drying apparatus that can process washing, rinsing, and heat drying by sequence control,
A water supply valve which controls to supply water for performing the washing and / or rinsing into the washing tank;
Heating means for heating water and air in the cleaning tank;
Temperature detecting means for detecting the temperature of water and air in the cleaning tank;
Heating and drying means for heating and drying the inside of the washing tank;
A blowing means for sending air into the cleaning tank;
The air blowing means is intermittently operated from the start to the end of the heat drying by the heat drying means, and the operation time is gradually increased until a certain time elapses, and continuously operates after the certain time elapses. Air blowing control means,
A dishwashing and drying apparatus comprising:   The dish washing and drying apparatus according to any one of claims 1 to 4, wherein the blower unit uses a fan motor that controls the amount of blown air by controlling rotation by phase control. In the dish washing drying control method which has at least a washing process, a rinsing process, and a heat drying process, and processes these processes by sequence control,
Washing and / or rinsing steps such as tableware for controlling the water supply valve for supplying water into the washing tank and heating and controlling the water and air;
A heating and drying step of heating the temperature of the air in the washing tank, intermittently operating the air blowing means from the start to the end of the heat drying, and controlling the air blowing means so as to gradually increase the operating time as time passes; ,
A dish washing / drying control method comprising: In the dish washing drying control method which has at least a washing process, a rinsing process, and a heat drying process, and processes these processes by sequence control,
Washing and / or rinsing steps such as tableware for controlling the water supply valve for supplying water into the washing tank and heating and controlling the water and air;
While heating the temperature of the air in the washing tank, the air blowing means is intermittently operated from the start to the end of the heat drying, and the operation time is gradually increased with the passage of time, and the predetermined time has elapsed or the predetermined temperature is reached. After reaching, a heating and drying process for controlling the blowing means to continuously blow,
A dish washing / drying control method comprising:

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