JP4742084B2 - Dishwasher - Google Patents

Description

  The present invention relates to a dishwasher. In particular, the present invention relates to a dishwasher that performs a rinsing process by heating rinse water in a cleaning tank and performing a rinse rinse process, and then performing a rinse process without heating the rinse water in the cleaning tank.

  There is a dishwasher that performs a process of rinsing dishes with heated washing water, a so-called heating rinse process. In the heating rinsing step, the cleaning water is heated to a high temperature (for example, 70 ° C.). The air contains hot water droplets and water vapor in the cleaning tank after the heating rinsing step. There is a dishwasher that performs a drying process after the rinsing process. In the drying step, the air in the cleaning tank is exhausted outside the cleaning tank. If the drying step is performed immediately after the heating rinsing step, a large amount of air containing hot water droplets and water vapor in the washing tank heated in the heating rinsing step is exhausted. A technique for solving this problem is described in Patent Document 1, for example.

  In the dishwasher of patent document 1, after performing a heating rinse process, the rinse process of a tableware is performed without heating washing water. Thereby, the temperature of the air in a washing tank can be lowered | hung and the temperature of the air exhausted from a dishwasher at the time of a drying process start can be lowered | hung.

JP 2000-189377 A

The temperature of the cleaning water supplied during the rinsing process varies depending on the temperature of the atmosphere and the presence or absence of hot water supply equipment. That is, the temperature of the cleaning water used in the rinsing process is not always constant. The temperature of the air in the washing tank after performing the rinsing process varies depending on the temperature of the washing water used in the rinsing process. If the temperature of the washing water used in the rinsing process is low, the tableware heated in the heating rinsing process before the rinsing process is cooled in a short time. Further, if the temperature of the washing water used in the rinsing process is high, it takes a long time to cool the tableware heated in the heating rinsing process before the rinsing process.
In the dishwasher of patent document 1, the execution time of the rinse process performed after a heating rinse process is constant. Therefore, the temperature in the washing tank after the rinsing process performed after the heating rinsing process does not reach a desired temperature. If the temperature of the washing water used in the rinsing process is low, the temperature in the washing tank after the rinsing process will be lower than the desired temperature. If the temperature of the washing water used in the rinsing process is high, the temperature in the washing tank after the rinsing process will be higher than the desired temperature.
The temperature in the washing tank after the rinsing process is important, and if it is too low, it will not be possible to sufficiently dry the dishes in the subsequent drying process, and if it is too high, it will be performed in the subsequent drying process. The air exhausted from the dishwasher becomes hot.

  The present invention was created to solve the above-described problems, and prevents high-temperature steam from being exhausted outside the dishwasher in the drying process and suppresses a decrease in drying performance. For the purpose.

  The tableware washing machine of the present invention includes a washing tank, a water supply device, a drainage device, a fountain device, a heating device, a thermistor, a control device, and a storage device. Tableware is stored in the washing tank. The water supply device supplies cleaning water into the cleaning tank. The drainage device drains the cleaning water in the cleaning tank. The spray device sprays cleaning water into the cleaning tank. The heating device heats the cleaning water in the cleaning tank. The thermistor measures the temperature of the cleaning water in the cleaning tank to obtain the measured temperature. The control device executes a rinsing step of sequentially operating the water supply device, the fountain device, the heating device, and the drainage device, and then executes a rinsing step of sequentially operating the water supply device, the fountain device, and the drainage device. The storage device stores the execution time of the rinsing process executed after the heating rinsing process in association with the measured temperature of the cleaning water supplied into the cleaning tank. The execution time of the rinsing process stored in the storage device is set such that the execution time is longer as the measured temperature is higher. Then, the control device executes the rinsing process with reference to the execution time of the rinsing process stored in the storage device.

In this dishwasher, the higher the temperature of the washing water supplied into the washing tank, the longer the execution time of the rinsing process executed after the heating rinsing process. When the temperature of the cleaning water supplied into the cleaning tank is high, the rate of decrease in the temperature of the air in the cleaning tank with respect to the execution time of the rinsing process performed after the heating rinsing process becomes low. In this case, the execution time of the rinse process performed after a heating rinse process is lengthened. Thereby, the temperature of the air in the washing tank after the rinsing step can be lowered to a desired temperature range. On the other hand, when the temperature of the cleaning water supplied into the cleaning tank is low, the rate of decrease in the temperature of the air in the cleaning tank with respect to the execution time of the rinsing process executed after the heating rinsing process becomes high. In this case, the execution time of the rinse process performed after a heating rinse process is shortened. Thereby, it can suppress that the temperature of the air in the washing tank after a rinse process becomes below a desired temperature range. According to this dishwasher, the temperature of the air in the washing tank after the rinsing process performed after the heating rinsing process can be adjusted within a desired temperature range regardless of the temperature of the washing water.
In this dishwasher, the water rinsing step may be performed by operating the water supply device and the heating device or the fountain device and the heating device at the same time. The aspect in which the water supply device, the fountain device, and the heating device are sequentially operated includes simultaneously operating the water supply device and the heating device or the fountain device and the heating device. In addition, the present invention exhibits usefulness when the rinsing step is performed after the heating rinsing step, and the rinsing step may be performed before the heating rinsing step or before the heating rinsing step. The rinsing step may not be performed.

  It is useful for this dishwasher to be provided with a temporary storage device that temporarily stores the amount of change in the measured temperature that occurs during the operation of the heating device and the fountain device. In that case, it is preferable to store the execution time of the rinsing process in the storage device in association with both the measured temperature of the cleaning water supplied into the cleaning tank and the amount of change temporarily stored. In this case, it is preferable that the execution time stored in the storage device is set to be longer as the measured temperature is higher and longer as the change amount is smaller.

The amount of tableware stored in the washing tank is not always constant. As the amount of tableware in the cleaning tank increases, the rate of decrease in the temperature of the air in the cleaning tank with respect to the execution time of the rinsing process executed after the heating rinsing process decreases. On the other hand, the greater the amount of tableware in the washing tank, the smaller the amount of change in measured temperature that occurs while the heating device and fountain device are operating.
In this dishwasher, the higher the temperature of the washing water supplied into the washing tub, and the smaller the change in the measured temperature that occurred while operating the heating device and the fountain device, the more the temperature is changed after the heating rinse step. Increase the execution time of the rinse process. According to this structure, even if the amount of tableware accommodated in a washing tank changes, the temperature in the washing tank after a rinse process can be adjusted in a desired temperature range.

In the rinsing process executed by the dishwasher, it is preferable to execute a unit rinsing process in which the water supply device, the fountain device, and the drainage device are operated in order and the operation time of the injection device is set constant. And it is preferable that the execution time of the rinse process memorize | stored in the memory | storage device is designated with the frequency | count of execution of a unit rinse process.
Also with this configuration, the temperature of the air in the cleaning tank after the rinsing process performed after the heating rinsing process can be adjusted within a desired temperature range regardless of the temperature of the cleaning water.

  According to the dishwasher of this invention, the air in the washing tank before a drying process becomes suitable temperature. Therefore, it is possible to prevent high-temperature air from being exhausted outside the dishwasher in the drying process. Moreover, it can also suppress that the drying performance in a drying process falls too much. It is possible to realize a dishwasher that is safer and consumes less power.

Hereinafter, preferred embodiments of the present invention will be described.
(Embodiment 1) In the dishwasher of a present Example, when the temperature of the washing water supplied to a washing tank is higher than appropriate temperature, a rinse process is continued until the temperature of washing water becomes below suitable temperature.

A dishwasher according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of the dishwasher 10. The dishwasher 10 is a drawer-type dishwasher. The dishwasher 10 includes a main body 12, a cleaning tank 14, and a door 15.
The cleaning tank 14 is accommodated in a space formed by the main body 12 and the door 15. The cleaning tank 14 is slidably supported by the main body 12. The cleaning tank 14 is slidable with respect to the main body 12 in the front-rear direction (left-right direction in FIG. 1). The cleaning tank 14 is connected to the door 15. When the door 15 is pulled forward (leftward in FIG. 1), the cleaning tank 14 is pulled out together with the door 15. The cleaning tank 14 is formed in a box shape with an open top. In the cleaning tank 14, a cleaning nozzle 21, a tableware basket 61, and the like are accommodated. The cleaning nozzle 21 has a plurality of injection ports 21a. The tableware basket 61 is formed in a shape corresponding to the tableware 19 in order to hold various tableware 19.

  A seal lid 56 is disposed above the cleaning tank 14. The seal lid 56 is connected to the cleaning tank 14 by a lifting mechanism (not shown). In a state in which the door 15 is closed (a state in which the cleaning tank 14 is accommodated in the main body 12), the seal lid 56 is lowered to cover the upper opening of the cleaning tank 14. When the cleaning tank 14 is pulled out from the main body 12, the seal lid 56 rises to open the upper opening of the cleaning tank 14.

A suction recess 31 is formed on the bottom surface 39 of the cleaning tank 14. The upper opening of the suction recess 31 is covered with the leftover filter 17. The leftover filter 17 is formed in a mesh shape. The leftover filter 17 can be removed from the cleaning tank 14. A pump 27 is provided below the bottom surface 39. The pump 27 rotates the impeller 28 by a built-in electric motor. The pump 27 can rotate the impeller 28 in one direction (forward direction) or in the opposite direction (reverse direction). The space in which the impeller 28 is disposed and the suction recess 31 are communicated with each other by a suction flow path 32. An electric heater 30 is mounted above the bottom surface 39 where the pump 27 is disposed. A thermistor 55 is disposed below the heater 30. The thermistor 55 detects the temperature of the water when the cleaning water or the rinsing water is put in the cleaning tank 14, and detects the temperature of the air in the cleaning tank when the cleaning water or the rinsing water is not put.
The cleaning nozzle 21 is rotatably attached to the bottom surface 39 of the cleaning tank 14. The cleaning nozzle 21 communicates with the first discharge port 11 of the pump 27. When the pump 27 is driven and the impeller 28 rotates in the forward direction, the cleaning water in the cleaning tank 14 is sent to the cleaning nozzle 21. The cleaning water sent to the cleaning nozzle 21 is sprayed into the cleaning tank 14 from the plurality of spray ports 21a. The fountain device 20 includes a cleaning nozzle 21, a pump 27, and an impeller 28. The pump 27 in this case is referred to as a cleaning pump 27. Some of the plurality of injection ports 21a generate a rotational moment in the cleaning nozzle 21 when water is injected.

An operation panel 16 and an exhaust path 18 are disposed on the door 15. The operation panel 16 is provided with various buttons and lamps. The exhaust path 18 communicates the inside and the outside of the cleaning tank 14.
A drain hose 34 is connected to the rear wall 33 (the right wall in FIG. 1) of the main body 12. The drain hose 34 and the second discharge port 35 of the pump 27 are communicated with each other by a drain channel 36. A drain check valve 38 is attached to the end of the drain channel 36 on the side connected to the drain hose 34. The drainage check valve 38 prevents drainage from flowing backward from the drainage hose 34 to the drainage flow path 36. When the pump 27 is driven and the impeller 28 rotates in the reverse direction, the cleaning in the cleaning tank 14 is drained from the cleaning tank 14 via the drainage path 36. The pump 27 and the impeller 28 also serve as a drainage device. The pump 27 in this case is referred to as a drainage pump 27. One end of a water supply hose 40 is connected to the rear wall 33 of the main body 12. The other end of the water supply hose 40 is connected to a water supply pipe (not shown). The water supply hose 40 may be directly supplied with tap water (cold water) or may be supplied with hot water heated by a water heater. One end of the water supply hose 40 is connected to the water supply valve 41 inside the main body 12 via the first water supply flow path 42. The water supply valve 41 is driven by a built-in solenoid to open and close. The water supply valve 41 and the cleaning tank 14 are communicated with each other by a second water supply channel 43.

A drying fan 52 is disposed between the rear wall 33 of the main body 12 and the rear wall 51 of the cleaning tank 14. The drying fan 52 rotates the fan 53 with a built-in motor. The cleaning tank 14 is connected to the drying fan 52 via the intake path 63.
A recess 58 is formed in the bottom surface 57 of the main body 12. Two electrodes of the water leak detection sensor 59 are inserted into the recess 58. When water leaks from the cleaning tank 14 to the outside and the leaked water flows into the recess 58, the electrodes are connected and the water leak detection sensor 59 is turned on.

  A water level detector 45 is disposed in front of the cleaning tank 14. The water level detector 45 includes a water level chamber 46, a float 47, a bar 48, and a water level switch 49. The water level chamber 46 communicates with the suction recess 31 by a water level path 50. The float 47 is disposed in the water level chamber 46. The bar 48 is fixed to the upper part of the float 47 and protrudes upward from the water level chamber 46. The water level switch 49 is disposed above the bar 48. When the cleaning water is supplied into the cleaning tank 14, it is also introduced into the water level chamber 46 through the water level path 50. The water level of the cleaning water in the water level chamber 46 is the same as the water level of the cleaning water in the cleaning tank 14. That is, when the cleaning water is supplied into the cleaning tank 14 and the level of the cleaning water in the cleaning tank 14 rises, the level of the cleaning water in the water level chamber 46 also rises. The float 47 floats with the wash water introduced into the water level chamber 46. When the float 47 rises as the cleaning water level in the water level chamber 46 rises, the upper end of the bar 48 contacts the water level switch 49. As a result, the water level switch 49 is turned on.

  A controller 60 is mounted above the water level detector 45. As shown in FIG. 2, the operation panel 16, the pump 27, the heater 30, the water supply valve 41, the water level switch 49, the drying fan 52, the thermistor 55, and the water leak detection sensor 59 are connected to the controller 60. The controller 60 controls the operation of each connected device by the built-in CPU 60a, memory 60b, and the like. The memory 60b stores information for controlling each device. The memory 60b stores a rinse course database 100.

  As shown in FIG. 3, the rinse course database 100 records one of three rinse courses of the X course, the Y course, and the Z course in association with the measured temperature 102 and the temperature change amount 104. The measurement temperature 102 is the temperature of the cleaning water supplied into the cleaning tank 14 and is the temperature of the cleaning water that is not heated by the heater 30. The temperature change amount 104 is the temperature in the cleaning tank 14 immediately after the heater 30 and the cleaning pump 27 are operated from the temperature of the cleaning water in the cleaning tank 14 10 minutes after the heater 30 and the cleaning pump 27 are operated. This is a value obtained by subtracting the temperature of the washing water. The measured temperature 102 and the temperature change amount 104 are higher than the minimum value indicated by each numerical value range and below the maximum value. For example, the measurement temperature 102 of 5 to 10 ° C. is higher than 5 ° C. and lower than or equal to 10 ° C. Similarly, the temperature variation 104 of 10 to 15 ° C. is higher than 10 ° C. and 15 ° C. or lower. That is, when the measurement temperature is 10 ° C. and the temperature change amount is 10 ° C., the Z course is selected. All three courses include a heating rinse step and a rinse step.

  FIG. 4 is a flowchart showing a processing procedure performed by the controller 60 in the heating rinsing process. FIG. 5 is a flowchart showing a processing procedure performed by the controller 60 in the rinsing process. In the rinsing step, the processing procedure of FIG. 5 may be executed a plurality of times. FIG. 5 shows the procedure of the unit rinsing process.

  As shown in FIG. 4, in the heating and rinsing process, first, the controller 60 opens the water supply valve 41 (step S <b> 10) and supplies cleaning water into the cleaning tank 14. The controller 60 operates the heater 30 (step S12) to heat the cleaning water in the cleaning tank 14. When receiving a signal from the water level switch 49 (step S14), the controller 60 closes the water supply valve (step S16). Thereby, the water supply to the washing tank 14 is stopped. When the water supply into the cleaning tank 14 is stopped, the controller 60 drives the cleaning pump 27 (step S18) and rotates the impeller 28 in the forward direction. The cleaning water is sent to the cleaning nozzle 21. The cleaning nozzle 21 injects cleaning water from the injection port 21a. The controller 60 confirms whether or not the cleaning water has been heated to a predetermined temperature (for example, 70 ° C.) based on the measured temperature information from the thermistor 55 (step S20).

  The controller 60 repeats step S20 until the washing water reaches a predetermined temperature. When the temperature of the cleaning water reaches a predetermined temperature (YES in step S20), the controller 60 stops the heater 30 (step S22). The controller 60 checks whether the rinsing time has elapsed (step S24). Specifically, it is confirmed whether or not a predetermined time (for example, 3 minutes) has elapsed since the cleaning pump 27 was driven. The time is measured by a timer (not shown) in the controller 60, for example. If the rinsing time has not elapsed (NO in step S24), the controller 60 repeats step S24. When the rinsing time has elapsed (YES in step S24), the controller 60 drives the drainage pump 27 (step S26) and rotates the impeller 28 in the reverse direction. When the washing water in the washing tank 14 is drained out of the dishwasher 10 through the drainage path 36, the controller 60 stops the drainage pump 27 (step S28), and the heating rinsing process is ended. The air in the cleaning tank 14 after the heating rinsing process contains water droplets and water vapor having a temperature substantially equal to the temperature of the heated cleaning water. The temperature of the air in the cleaning tank 14 after the heating rinsing step is substantially equal to the temperature of the heated cleaning water.

  As shown in FIG. 5, in the rinsing process, first, the controller 60 opens the water supply valve 41 (step S <b> 30) and supplies cleaning water into the cleaning tank 14. When receiving a signal from the water level switch 49 (step S32), the controller 60 closes the water supply valve (step S34). Thereby, the water supply to the washing tank 14 is stopped. When the water supply into the cleaning tank 14 is stopped, the controller 60 drives the cleaning pump 27 (step S36) and rotates the impeller 28 in the forward direction. The cleaning water is sent to the cleaning nozzle 21. The cleaning nozzle 21 injects cleaning water from the injection port 21a.

The controller 60 confirms whether the rinsing time (for example, 3 minutes) has elapsed (step S38). If the rinsing time has not elapsed (NO in step S38), the controller 60 repeats step S48. When the rinsing time has elapsed (YES in step S38), the controller 60 drives the drainage pump 27 (step S40) and rotates the impeller 28 in the reverse direction. When the washing water in the washing tank 14 is drained, the controller 60 stops the drainage pump 27 (step S42) and ends the rinsing process. In the rinsing process, the washing water is not heated. Therefore, the temperature of the air in the cleaning tank 14 after the rinsing process is performed approaches the temperature of the cleaning water supplied to the cleaning tank 14.
The processing procedure of FIG. 5 shows a unit rinsing step. The time of the unit rinsing process in step S38 is constant. However, in the actual rinsing process, the unit process may be performed twice or three times. The substantial execution time of the rinsing process is adjusted by the number of times this unit process is repeated.

  Next, three courses of the X, Y, and Z courses will be described. As shown in FIG. 6, in the X course, first, a heating rinse process is executed (step S50). When the heating rinsing process is completed, the first rinsing process (step S52), the second rinsing process (step S54), and the third rinsing process (step S56) are then performed. In the X course, the unit rinsing process is repeated three times. As shown in FIG. 7, in the Y course, a heating rinse process is first executed (step S60). Next, a 1st rinse process (step S62) and a 2nd rinse process (step S64) are performed. In the Y course, the unit rinsing process is repeated twice. As shown in FIG. 8, in the Z course, first, the first rinsing process is executed (step S70). Next, a heating rinse process is performed (step S72). Furthermore, a 2nd rinse process is performed after a heating rinse process (step S74). In the Z course, the unit rinsing process after the heating rinsing process is executed only once. In the three courses described above, the execution time of the unit rinsing process (the rinsing time in step S38 in FIG. 5) is uniformly 3 minutes. However, when the measured temperature of the washing water is 45 ° C. or higher, the last unit rinsing step of the rinsing course is executed until the measured temperature of the thermistor 55 reaches 45 ° C.

  The total execution time of the rinsing process executed after the heating rinsing process is the longest in the X course and the shortest in the Z course among the three rinsing courses. As shown in FIG. 3, as the measurement temperature increases, the rinsing course is in the order of the Z course, the Y course, and the X course. Moreover, the execution time of the rinse process performed after a heating rinse process is set so that it becomes long as the amount of temperature changes becomes small. Thereby, in each rinse course, the temperature of the air in the washing tank 14 after completion | finish of a rinse process becomes appropriate temperature (for example, 45 degreeC vicinity).

As shown in FIG. 9, the dishwasher 10 operates in the order of a cleaning process (step S80), a rinsing process, a heating rinsing process (step S82), and a drying process (step S84). FIG. 10 is a flowchart showing a processing procedure of the controller 60 in the cleaning process of step S80.
First, the user turns on a start button provided on the operation panel 16. When the start button is turned on, a signal is transmitted from the operation panel 16 to the controller 60. When receiving a signal from the operation panel 16, the controller 60 drives the drainage pump 27 (step S90). When washing water remains in the septic tank 14, it is drained by step S90. When the drainage is completed, the controller 60 opens the water supply valve 41 (step S92) and supplies cleaning water into the cleaning tank 14. The controller 60 receives the measured temperature information of the thermistor 55 after a predetermined time (for example, 2 minutes) has elapsed since the water supply valve was opened (step S94). When the measured temperature information is received, the controller 60 stores the measured temperature information in the memory 60b (step S96).

  The controller 60 operates the heater (Step S98). When receiving a signal from the water level switch 49 (step S100), the controller 60 closes the water supply valve (step S102). Next, the controller 60 drives the cleaning pump 27 (step S104) to rotate the impeller 28 in the forward direction. The cleaning water is sent to the cleaning nozzle 21. The cleaning nozzle 21 injects cleaning water from the injection port 21a. Next, the controller 60 receives the measured temperature information from the thermistor 55 (step S106) and stores it in the memory 60b (step S108). The controller 60 repeats step S110 until 10 minutes have elapsed since the cleaning pump 27 was driven. When 10 minutes have elapsed (YES in step S110), the controller 60 receives the measured temperature information from the thermistor 55 (step S112) and stores it in the memory 60b (step S114). The controller 60 calculates the amount of temperature change by subtracting the measured temperature stored in step S108 from the measured temperature stored in step S114 (step S116), and stores it in the memory 60b (step S118).

  When the temperature change amount is stored, the controller 60 selects the rinse temperature corresponding to the measured temperature stored in step S96 and the temperature change amount stored in step S118 from the rinse course database 100 (step S120). . For example, when the measured temperature stored in step S96 is 21 ° C. and the temperature change stored in step S118 is 13 ° C., the controller 60 selects the Y course as the rinse course. When the rinsing course is selected, the controller 60 receives the measured temperature information from the thermistor 55 and repeats step S122 until the washing water reaches a predetermined temperature (for example, 60 ° C.). When the washing water reaches a predetermined temperature (YES in step S122), the controller 60 stops the heater 30 (step S124). Subsequently, the controller 60 confirms whether or not the cleaning time has elapsed (step S126). When the cleaning time has elapsed (YES in step S126), the controller 60 drives the drain pump 27 (step S128) and rotates it in the reverse direction of the impeller 28. Thereby, the washing water in the washing tank 14 is drained out of the dishwasher 10. When the washing water in the washing tank 14 is drained, the controller 60 stops the drainage pump 27 (step S130) and ends the washing process. Subsequently, the controller 60 executes a rinsing process (step S82 in FIG. 9) and a drying process (step S84 in FIG. 9).

The rinsing process and the heating rinsing process are executed in accordance with a rinsing course selected based on the temperature of the cleaning water supplied into the cleaning tank 14 and the temperature variation of the heated cleaning water. When the Y course is selected, the controller 60 performs the heating rinsing process shown in FIG. 4 according to the process shown in FIG. 7, and then repeats the rinsing process shown in FIG. 5 twice. Thereby, the temperature of the air in the washing tank 14 after a rinse process can be made into suitable temperature (for example, 45 degreeC vicinity). Therefore, it is possible to prevent air containing hot water droplets and water vapor from being exhausted outside the dishwasher 10 in the drying process.
Moreover, when the temperature of the cleaning water supplied into the cleaning tank 14 is low, the execution time of the rinsing process after the heating rinsing process is short. A decrease in the temperature of the air in the cleaning tank 14 before the drying process can be prevented. Therefore, in the drying process, a decrease in drying performance is suppressed.

In the tableware washing machine 10 described above, the temperature of the washing water is measured by the thermistor 55. However, a thermistor that measures the temperature of the cleaning water before being heated by the heater 30 may be provided separately. For example, a thermistor may be provided at one end of the second water supply channel 43.
Moreover, in the above-mentioned dishwasher 10, the time of each rinse process after a heating rinse process is constant. That is, the execution time of the rinsing process after the heating rinsing process of each rinsing course varies depending on the number of rinsing processes. However, the number of each rinsing step may be the same. In this case, the execution time of each rinse process after the heating rinse process of each rinse course is changed by changing the time of a rinse process. Moreover, you may change both the frequency | count of a rinse process and the time of each rinse process with each rinse course.
Moreover, in the above-mentioned tableware washing machine 10, when the temperature of the washing water supplied to the washing tank 14 is 45 degreeC or more, the time of the last rinse process is lengthened. Thereby, the temperature of washing water can be reduced. Thereby, even when the temperature of the washing water supplied to the washing tank 14 is high, it is possible to prevent high-temperature air from being exhausted from the dishwasher 10 in the drying process.

  In the dishwasher 10 described above, the rinse course database 100 records the rinse course in association with the measured temperature 102 and the temperature change amount 104. However, the rinse course database may record the rinse course in association with only the measured temperature. In this case, only the temperature of the cleaning water supplied to the cleaning tank 14 may be measured. The controller 60 selects the rinsing course from only this measured temperature.

Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.
In addition, the technical elements described in the present specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

The cross-sectional schematic diagram of the dishwasher of a present Example. The block diagram which shows the control system of the dishwasher of a present Example. The figure which shows the rinse course database of a present Example. The flowchart which shows the heating rinse process of a present Example. The flowchart which shows the rinse process of a present Example. The flowchart which shows X course of the rinse course of a present Example. The flowchart which shows Y course of the rinse course of a present Example. The flowchart which shows Z course of the rinse course of a present Example. The flowchart which shows the driving | operation operation | movement of a present Example. The flowchart which shows the washing | cleaning process of a present Example.

Explanation of symbols

12: Main body 14: Cleaning tank 20: Fountain device 27: Motor 28: Impeller 30: Heater 41: Water supply valve 45: Water level detector 55: Thermistor 60: Controller 60a: CPU
60b: Memory 100: Rinse course database 102: Measurement temperature 104: Temperature change amount

Claims (3)

A washing tank for storing tableware;
A water supply device for supplying cleaning water into the cleaning tank;
A drainage device for draining the cleaning water in the cleaning tank;
A fountain device for injecting cleaning water into the cleaning tank;
A heating device for heating the cleaning water in the cleaning tank;
A thermistor that measures the temperature of the washing water in the washing tank to obtain the measurement temperature;
A control device for performing a rinsing step for sequentially operating the water supply device, the fountain device, and the drainage device after performing the heating rinsing step for sequentially operating the water supply device, the fountain device, the heating device, and the drainage device;
A storage device referred to by the control device;
In the storage device, the execution time of the rinsing process executed after the heating rinsing process is stored in association with the measured temperature of the cleaning water supplied into the cleaning tank, and the execution time is longer as the measured temperature is higher. Dishwasher characterized by being set to. A temporary storage device that temporarily stores the amount of change in the measured temperature that occurs while operating the heating device and the fountain device;
In the storage device, the execution time is stored in association with the measured temperature of the cleaning water supplied into the cleaning tank and the amount of change, and the higher the measured temperature, the longer the execution time, and the amount of change 2. The dishwasher according to claim 1, wherein the smaller the value is, the longer the execution time is set.   In the rinsing step, a unit rinsing step in which the water supply device, the fountain device, and the drainage device are operated in order and the operation time of the injection device is set to a fixed time is executed, and the execution time is the number of times the unit rinsing step is executed The dishwasher according to claim 1 or 2, characterized by

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