JPH0788074A - Dish washer - Google Patents

Abstract

PURPOSE:To prevent blowing off of high temperature steam from the discharge mouth, due to the sudden heating and the resultant expansion of cold air blowing into the washing tank at the time of opening the door, in case of the temperature of washing water in the washing tank being high when the dish washer is restarted after the program sequence is interrupted while the washing pump is in operation and the door is opened and closed. CONSTITUTION:In the midst of the washing or rinsing process, when the dish washer is restarted after the program sequence is interrupted while the washing pump 4 is in operation and the door 14 is opened and closed, the water temperature of washing water in the washing tank 1 is detected by the water temperature detecting means 8 and when the water temperature is high, the washing pump 4 is moved intermittently and cold air flowing into the washing tank 1 at the time of opening the door is warmed gradually in order to avoid sudden expansion of such air.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher for washing dishes by spraying washing water on the dishes stored in a washing tank.

[0002]

2. Description of the Related Art In recent years, after a washing pump is operating in a washing process or a rinsing process, a program sequence is interrupted by, for example, temporarily stopping the door, opening and closing a door and adding dishes to the washing tank. There has been proposed a dishwasher that restarts the program sequence after restarting the program sequence by intermittently operating a cleaning pump to gradually warm the cold outside air flowing into the cleaning tank when the door is opened.

Conventionally, this type of dishwasher has been constructed as shown in FIG. The configuration will be described below.

As shown in the figure, a cleaning tank 1 stores dishes 2 inside and stores cleaning water at the bottom. Cleaning nozzle 3
Is rotatably supported in the washing tank 1 and spouts washing water toward the tableware 2. The washing pump 4 sends the washing water to the washing nozzle 3, and the washing pump 4 uses a motor 5
Driven by. The water level sensor 6 detects the water level in the cleaning tank 1 and outputs it as an electric signal. The heater 7 is arranged at the bottom of the cleaning tank 1 and heats cleaning water. The thermistor (water temperature detecting means) 8 is attached to the bottom of the cleaning tank 1 so as to be in close contact with the bottom of the cleaning tank 1, and detects the temperature of the cleaning water. The blower fan 9 sends out the steam in the cleaning tank 1 and is discharged from the exhaust port 10 to the outside of the machine. The tableware basket 11 is for arranging the tableware 2. The water supply valve 12 supplies tap water into the cleaning tank 1, and the drainage pump 13 drains the cleaning water in the cleaning tank 1 out of the machine. The door 14 cleans the dishes 2 and the washing tank 1
It is provided so that it can be opened and closed in order to get in and out. The control means 15 controls a series of program sequences for cleaning, rinsing and drying the dishes 2.

The operation of the above structure will be described. When the user places the dishes 2 in the dish basket 11 and stores them in the washing tank 1 and puts the detergent and then starts the operation, first, the water level at the bottom of the washing tank 1 is set. A predetermined amount of tap water is supplied by the water supply valve 12 until the sensor 6 detects a predetermined water level. Then, the motor 5 and the heater 7 are energized, and the washing water is heated and jetted from the washing nozzle 3 toward the dishes 2 by the washing pump 4. At this time, the temperature of the wash water is detected by the thermistor 8, and the control means 15 always grasps the temperature of the wash water. When the temperature of the cleaning water reaches a predetermined temperature and a predetermined time has elapsed from the start of cleaning, the control means 15 ends the cleaning process, and the cleaning water is once drained by the drainage pump 13.

Next, tap water is newly supplied and the same operation as the above-mentioned washing process is performed for several minutes to drain the water. After this rinsing step is repeated several times, the same operation as a washing step called a heat rinsing step is performed, and when the predetermined temperature is reached, the operation is finished and drained. Finally, the blower fan 9 is operated to discharge the steam in the cleaning tank 1 to the outside of the machine, and at the same time, the heater 7 is intermittently energized to heat the tableware 2 and dry the attached water droplets.

A process of intermittently operating the cleaning pump 4 when the program sequence is restarted after the program sequence is interrupted by temporarily stopping the cleaning pump 13 while the cleaning pump 13 is operating and the door 14 is opened and closed. Will be described with reference to FIG.

In this type of dishwasher, the door 14 can be opened without pressing the temporary stop button to interrupt the program sequence while the cleaning pump 4 is operating during the cleaning process. , At this time, the washing pump 4
It is as if the pause button was pressed, but this is because it is configured to generate a pause electrical signal in conjunction with the operation of opening the door 14, and in the following description. , The handling of the pause due to the opening of the door 14 is treated as the opening of the door 14 after pressing the pause button, and similarly, the restart of the program sequence due to the closing of the door 14 Is treated as pressing the restart button after closing the door 14.

When the cleaning pump 4 is temporarily stopped during operation in the cleaning process or the rinsing process, step 19 in FIG.
Initialize the number of times the door 14 is opened and closed at step 20, and restart the door 14 without opening and closing it at step 20. At step 24, the program sequence is interrupted because the door 14 is not opened and closed. To resume.

On the other hand, when it is found in steps 20 and 21 that the door 14 is opened / closed during the temporary stop, the number of times of opening / closing is added in step 22 and the restart is found in step 23. When it is found that the door is opened and closed during the temporary stop, the washing pump 4 is intermittently operated in step 25, and then the interrupted sequence is restarted.

As a result, the cold outside air flowing into the cleaning tank 1 when the door 14 is opened is gradually warmed, and then the program sequence is restarted, whereby the cold outside air is rapidly heated and expanded. It is possible to suppress the high temperature steam from being blown out from the exhaust port 10.

[0012]

However, in the above-mentioned conventional dishwasher, when it is found in step 24 of FIG. 10 that the door 14 is opened and closed during the temporary stop, the intermittent operation of the washing pump is uniquely performed. Therefore, for example, when the user opens and closes the door 14 to add the dishes 2 to the cleaning tank 1 shortly after the cleaning process is started, the water temperature in the cleaning tank 1 at this time is generally Although it is extremely low, the intermittent operation of the cleaning pump 4 is unconditionally performed, which not only unnecessarily prolongs the time required to complete the operation but also causes a troublesome noise.

The present invention solves the above-mentioned problems, and when the program sequence is interrupted while the cleaning pump is operating, the door is opened / closed, and restarted, when the temperature of the cleaning water in the cleaning tank is high. The first purpose is to prevent the outside air that has flowed into the cleaning tank from rapidly expanding when the door is opened.

Further, when the program sequence is interrupted while the cleaning pump is operating, the doors are opened and closed for a short time, and small dishes are added to the cleaning tank, that is, outside air does not flow into the cleaning tank so much. In this case, the second purpose is to prevent the intermittent operation of the cleaning pump due to the restart.

Further, even when the program sequence is interrupted during operation of the washing pump, the doors are opened and closed for a short period of time, and small dishes are added to the washing tank, if this is repeated several times. Since the outside air flows into the cleaning tank, it is necessary to prevent the outside air flowing into the cleaning tank from rapidly expanding when the door is opened when restarting.
The purpose is.

When the washing pump is in operation, the program sequence is interrupted, the door is opened / closed, and restarted, if the temperature of the washing water in the washing tank is high, it flows into the washing tank when the door is opened. A fourth object is to prevent the inflowing outside air from rapidly expanding when the outside air temperature is low.

Further, when the cleaning pump is in operation, the program sequence is interrupted, the door is opened and closed, and when restarting, the temperature of the cleaning water in the cleaning tank changes the temperature of the outside air flowing into the cleaning tank when the door is opened. A fifth object is to find out at what temperature the air is to be rapidly expanded, and to appropriately prevent the air from being rapidly expanded according to the temperature of the air.

Further, when the dishwasher is installed in a room having a clearly high ambient temperature, the temperature of the outside air flowing into the washing tank is high even if the door is opened / closed, and therefore the above-mentioned washing is performed without making various judgments. A sixth object is to prevent the intermittent operation of the pump.

[0019]

In order to achieve the first object, the present invention provides a washing tank for storing dishes and a door which is openable and closable for taking the dishes in and out of the washing tank. A cleaning pump for ejecting the cleaning water in the cleaning tank toward the tableware, a water temperature detecting means for detecting the temperature of the cleaning water in the cleaning tank, and cleaning and rinsing the tableware,
And a control means for controlling a series of program sequences of the drying process, the control means interrupting the program sequence during the operation of the cleaning pump and opening and closing the door before resuming the program sequence, and The first problem solving means is to restart the program sequence after intermittently operating the cleaning pump when the temperature of the cleaning water at this time exceeds a predetermined temperature.

Further, in order to achieve the second object, the control means interrupts the program sequence during the operation of the cleaning pump, opens and closes the door before resuming the program sequence, and opens the door. The second problem solving means is to restart the program sequence without intermittently operating the cleaning pump when the time is shorter than the preset predetermined time.

In order to achieve the third object, the control means interrupts the program sequence during the operation of the cleaning pump, opens and closes the door before restarting the program sequence, and keeps the door within a predetermined time. A third problem solving means is to restart the program sequence after intermittently operating the cleaning pump when the number of times of opening and closing is greater than a predetermined number set in advance.

Further, in order to achieve the fourth object, in addition to the means for solving the first problem, an air temperature detecting means for detecting the ambient temperature under the installation environment of the dishwasher is provided, and the control means is the washing pump. The program sequence is interrupted during operation, the door is opened and closed until it is restarted, and the water temperature of the washing water at this time exceeds a preset temperature, and the ambient temperature at this time is preset. The fourth problem solving means is to restart the program sequence after intermittently operating the cleaning pump when the temperature does not reach the predetermined temperature.

Further, in order to achieve the fifth object, in addition to the means for solving the first problem, an air temperature detecting means for detecting an ambient temperature under the installation environment of the dishwasher is provided, and the control means is a washing pump. If the program sequence is interrupted during operation, the door is opened and closed until it is restarted, and the ambient temperature at this time does not reach the temperature determined based on the water temperature of the cleaning water at this time, the cleaning pump The fifth problem solving means is that the program sequence is restarted after the intermittent operation of.

Further, in order to achieve the sixth object, in addition to the means for solving the first problem, an air temperature detecting means for detecting the ambient temperature under the installation environment of the dishwasher is provided, and the control means is the washing pump. If the program sequence is interrupted during operation and the door is opened / closed until it is restarted, and the ambient temperature at this time exceeds a preset predetermined temperature, the program sequence is not operated intermittently. The sixth problem solving means is to restart the process.

[0025]

According to the first means for solving the above problems, the present invention provides:
When the cleaning pump is operating during the cleaning process or rinsing process, the program sequence is interrupted, the door is opened and closed, and the temperature of the cleaning water in the cleaning tank is detected when restarting.If the water temperature is high, Since the cleaning pump is intermittently operated to gradually warm the outside air flowing into the cleaning tank when the door is opened, it is possible to prevent the outside air from rapidly expanding.

Further, according to the second means for solving the problems, when the program sequence is interrupted during the operation of the cleaning pump to open and close the door, the time during which the door is opened is measured and this time is short. In this case, that is, when the outside air does not flow into the washing tank so much, the program sequence is restarted without performing the intermittent operation of the washing pump due to the restart, so the doors are opened and closed for a short time, and the small dishes Is added to the cleaning tank, the program sequence can be restarted without performing unnecessary operations, and it is possible to prevent the time required to complete the operation from being unnecessarily extended.

According to the third means for solving the problems, when the program sequence is interrupted during the operation of the cleaning pump and the door is opened / closed, the number of times the door is opened / closed is counted, so that the door is opened for a short time. Even if small dishes are added to the washing tank by opening and closing, if this is repeated several times, the outside air will flow into the washing tank, so the washing pump should be turned on when restarting. Since the outside air flowing into the cleaning tank is warmed gradually when the door is opened by the intermittent operation, it is possible to prevent the outside air from rapidly expanding.

According to the fourth means for solving the problems, the program sequence is interrupted while the cleaning pump is operating, the door is opened and closed, and the temperature of the cleaning water is detected when the cleaning pump is restarted. Detects the ambient temperature in the environment where the dishwasher is installed, and when this ambient temperature is low, the cleaning pump is operated intermittently to gradually warm the outside air that has flowed into the cleaning tank when the door is opened. It can prevent it from expanding.

According to the fifth means for solving the problems, the program sequence is interrupted during the operation of the cleaning pump, the door is opened and closed, and the temperature is changed from the temperature of the cleaning water in the cleaning tank when the door is opened when the door is opened. If the temperature of the outside air that has flowed into the cleaning tank is less than a certain value, determine if this outside air expands rapidly. If the temperature of the outside air at this time is lower than this calculated temperature, properly wash the outside air. Since the pump operates intermittently to gradually warm the outside air flowing into the cleaning tank when the door is opened, it is possible to prevent the outside air from expanding rapidly.

Further, according to the sixth means for solving the problems, when the dishwasher is installed in a room having an apparently high ambient temperature, even if the door is opened and closed, the temperature of the outside air flowing into the washing tank is high, and therefore various judgments are made. The program sequence can be restarted without performing the intermittent operation of the cleaning pump due to the restart, and it is possible to prevent the time required to complete the operation from being unnecessarily extended.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIG. The same components as those of the above-mentioned conventional example are designated by the same reference numerals and the description thereof will be omitted.

As shown in the figure, the control means 16 controls a series of program sequences for the washing, rinsing and drying steps of the dishes 2, and the program sequence is executed while the washing pump 4 is operating in the washing step or the rinsing step. Interrupted, door 1
4 is opened and closed, and when restarting, the temperature of the washing water in the washing tank 1 is detected by a thermistor (water temperature detecting means) 8, and if this water temperature exceeds a preset temperature, the washing pump 4 The program sequence is restarted after the intermittent operation.

The operation of the above configuration will be described with reference to FIG. The control of the series of program sequences for the washing, rinsing and drying steps of the tableware 2 by the control means 16 is the same as that of the conventional example, and therefore its explanation is omitted.
A means for performing the intermittent operation of the cleaning pump 4 when the door 14 is opened and closed will be described.

When the cleaning pump 4 is temporarily stopped during the cleaning process or the rinsing process, the number of times the door 14 is opened and closed is initialized in step 19 of FIG. 2, and the door 14 is opened and closed in step 20. If it is restarted without knowing, in step 24 it is learned that the door was not opened / closed during the temporary stop, and the interrupted program sequence is restarted.

On the other hand, when it is detected in step 20 and step 21 that the door 14 is opened / closed during the temporary stop,
When the number of times of opening and closing is added in step 22, the restart is found in step 23, and when the door 14 is opened and closed during the temporary stop in step 24, the thermistor 8 is used in the cleaning tank 1 in step 26. The temperature of the wash water is 40
Temperature (predetermined temperature) or higher, and if the water temperature is 40
If the water temperature is less than 40 degrees, the interrupted sequence is restarted after the cleaning pump 4 is intermittently operated in step 25. If the water temperature is less than 40 degrees, the cleaning pump 4 is interrupted without intermittent operation. To resume.

As a result, when the temperature of the cleaning water in the cleaning tank 1 is high, the cold outside air flowing into the cleaning tank 1 when the door is opened is gradually warmed, and then the program sequence is restarted to restart the above-mentioned cold operation. It is possible to prevent the high-temperature steam from being blown out from the exhaust port 10 caused by the outside air being rapidly warmed and expanded.

In the above embodiment, the timing of counting the number of times the door 14 is opened and closed and the high temperature judgment temperature of the cleaning water in the cleaning tank 1 are specifically shown. The method of performing the intermittent operation is not limited.

Next, a second embodiment of the present invention will be described. When the cleaning pump 4 is opened and the door 14 is opened and closed while the cleaning pump 4 is operating, the control means 16 in FIG. 1 measures the time during which the door 14 is open and preset this time. If the predetermined time is not reached, it is determined that the outside air does not flow into the cleaning tank 1,
The program sequence is restarted without performing the intermittent operation of the cleaning pump 4 accompanying the restart. The other structure is the same as that of the first embodiment.

The operation of the above configuration will be described with reference to FIG. It should be noted that steps 19 to 25 in FIG. 3 are the same as those in the first embodiment described above, and a description thereof will be omitted.

After adding the number of times of opening and closing the door in step 22, the timer measurement for measuring the time when the door 14 is open is started in step 27, and when it is known that the door 14 is closed in step 28. The timer measurement time t is known in step 29, and only when the time t is within 5 seconds (predetermined time) in step 30, the door 1 is determined in step 31.
Initialize the number of opening and closing of 4.

As a result, when the door 14 is opened and closed for a short period of time to add small dishes to the cleaning tank 1, the program sequence can be restarted without wasteful operation, and the time required for the operation to end is not prank. You can prevent it from stretching.

Next, a third embodiment of the present invention will be described. If the control means 16 in FIG. 1 interrupts the program sequence while the cleaning pump 4 is operating and opens and closes the door 14, the control means 16 counts the number of times the door 14 has been opened and closed. Even when the cleaning pump 4 is opened / closed, if the number of times of opening / closing within the predetermined time exceeds the predetermined number of times set in advance, the outside air flows into the cleaning tank 1, so that the cleaning pump 4 is intermittently restarted when restarting. I'm trying to work. The other structure is the same as that of the first embodiment.

The operation of the above configuration will be described with reference to FIG. It should be noted that steps 19 to 22 in FIG. 4 are the same as those in the first embodiment described above, and a description thereof will be omitted.

After adding the number of times of opening and closing the door in step 22, when it is found that the door 14 is closed in step 32,
Door 14 until restarting at step 33
If the number of times the door is opened and closed is less than 3 times (predetermined number) in step 34 when the number of times of opening and closing is restarted and restarted, the interrupted program sequence is restarted without intermittently operating the cleaning pump 4, If the number of times the door 14 is opened and closed is 3 or more, the cleaning pump 4 is opened in step 35.
After intermittently operating the, restart the interrupted sequence.

As a result, even when the door 14 is opened and closed a predetermined number of times or more, the cleaning pump 4 is intermittently operated when restarting, so that the cleaning tank 1 can be opened when the door is opened.
Since the outside air flowing into the inside is gradually warmed, it is possible to prevent the outside air from expanding rapidly.

Next, a fourth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in the figure, the air temperature detecting means 17 detects the ambient temperature under the installation environment of the dishwasher, and the controlling means 18 controls a series of program sequences for washing, rinsing and drying the dishes 2. Then, when the washing pump 4 is in operation, the program sequence is interrupted, the door 14 is opened and closed, and the temperature of the washing water is detected by the thermistor 8 when restarting, and the water temperature is higher than a preset temperature. First, the ambient temperature under the installation environment of the dishwasher is detected by the ambient temperature detecting means 17, and when the ambient temperature is lower than a predetermined temperature set in advance, the cleaning pump 4 is intermittently operated.

The operation of the above structure will be described with reference to FIG. It should be noted that steps 19 to 25 in FIG. 6 are the same as those in the above-described first embodiment, and a description thereof will be omitted.

When it is found in step 24 that the door 14 is opened / closed during the temporary stop, the temperature of the washing water in the washing tank 1 detected by the thermistor 8 is 40 ° C. in step 36.
When the ambient temperature detected by the air temperature detecting means 17 in step 37 is not higher than (predetermined temperature) and is 15 degrees (predetermined temperature) or lower, the washing pump 4 is intermittently operated in step 25, and then the sequence is interrupted. To resume.

As a result, when the cleaning pump 4 is in operation, the program sequence is interrupted, the door 14 is opened and closed, and when the temperature of the cleaning water in the cleaning tank 1 is high when the cleaning pump 4 is restarted, the temperature of the door 14 remains unchanged. When the temperature of the outside air flowing into the cleaning tank 1 during opening has a low value, the cleaning pump 4 is appropriately operated intermittently to gradually warm the outside air flowing into the cleaning tank 1. Can be prevented from expanding.

Next, a fifth embodiment of the present invention will be described. The control means 18 in FIG. 5 interrupts the program sequence while the cleaning pump 4 is operating, opens and closes the door 14, and restarts the cleaning tank 1 from the temperature of the cleaning water in the cleaning tank 1 when the door is opened. If the temperature of the outside air flowing into the inside is less than or equal to a number of times, it is determined whether this outside air expands rapidly. If the temperature of the outside air at this time is lower than the obtained temperature, the cleaning pump 4 can be appropriately used. To work intermittently. The other structure is the same as that of the fourth embodiment.

The operation of the above configuration will be described with reference to FIG. It should be noted that steps 19 to 25 in FIG. 7 are the same as those in the first embodiment described above, and a description thereof will be omitted.

When it is determined in step 24 that the door 14 has been opened / closed during the temporary stop, when it is determined in step 38 that the temperature of the cleaning water in the cleaning tank 1 is 70 degrees or more, in step 39. If the temperature of the outside air flowing into the cleaning tank 1 when the door is opened is a value of 25 degrees or less, it is known that the outside air expands rapidly. If the temperature of the outside air at this time is 25 degrees or less, step 25 After intermittently operating the cleaning pump 4, the interrupted sequence is restarted.

Similarly, when it is determined in step 40 that the temperature of the washing water in the washing tank is 60 degrees or more and less than 70 degrees, the temperature of the outside air flowing into the washing tank 1 when the door is opened in step 41. If the value is less than 20 degrees, it is known that the outside air expands rapidly, and the temperature of the outside air at this time is 20 degrees.
When the cleaning pump 4 is intermittently operated in step 25 when the temperature is equal to or less than the frequency, the interrupted sequence is restarted.

Similarly, when it is determined in step 42 that the water temperature of the cleaning water in the cleaning tank 1 is 40 degrees or more and less than 60 degrees, in step 43, the outside air flowing into the cleaning tank 1 when the door is opened is detected. If the temperature is below 15 degrees, it is known that the outside air expands rapidly, and the temperature of the outside air at this time is 1
When the temperature is 5 degrees or less, the washing pump 4 is intermittently operated in step 25, and then the interrupted sequence is restarted.

As a result, if the temperature of the outside air flowing into the washing tank 1 when the door is opened is less than or equal to the temperature of the washing water in the washing tank 1, whether the outside air expands rapidly. Therefore, the cleaning pump 4 is intermittently operated appropriately according to the temperature of the outside air flowing into the cleaning tank 1 when the door is opened, and the outside air flowing into the cleaning tank 1 is gradually warmed when the door is opened. It is possible to prevent the outside air from rapidly expanding.

Next, a sixth embodiment of the present invention will be described. The control means 18 in FIG.
When the ambient temperature detected by 7 is obviously higher than the predetermined temperature set in advance, the temperature of the outside air flowing into the cleaning tank 1 is high even if the door 14 is opened and closed, and therefore it is determined that the outside air does not expand. The program sequence is restarted without the intermittent operation of the cleaning pump 4 associated with the restart. The other structure is the same as that of the fourth embodiment.

The operation of the above configuration will be described with reference to FIG. It should be noted that steps 19 to 25 in FIG. 8 are the same as those in the first embodiment described above, and a description thereof will be omitted.

When it is found in step 24 that the door 14 has been opened and closed during the temporary stop, if the ambient temperature is 25 degrees (predetermined temperature) or more in step 44, the cleaning pump 4 is interrupted without intermittent operation. If the ambient temperature does not reach 25 degrees, the cleaning pump 4 is intermittently operated in step 25, and then the interrupted sequence is restarted.

As a result, when the dishwasher is installed in a room where the ambient temperature is obviously high, even if the door 14 is opened and closed, the temperature of the outside air flowing into the washing tank 1 is high, and therefore it is not necessary to make various judgments. The program sequence can be restarted without the intermittent operation of the cleaning pump 4 associated with the restart, and it is possible to prevent the time required to complete the operation from being unnecessarily extended.

[0061]

As is apparent from the above embodiments, according to the present invention, a washing tank for storing dishes and a door provided so as to be openable and closable for putting the dishes in and out of the washing tank are provided.
A washing pump for ejecting the washing water in the washing tank toward the dishes, a water temperature detecting means for detecting the water temperature of the washing water in the washing tank, and a series of washing, rinsing and drying steps of the dishes. A control means for controlling the program sequence, wherein the control means interrupts the program sequence during the operation of the cleaning pump, opens and closes the door before restarting the program sequence, and the cleaning water at this time. When the water temperature exceeds a predetermined temperature set in advance, the program sequence is restarted after intermittently operating the cleaning pump.Therefore, the program sequence is interrupted while the cleaning pump is operating during the cleaning process or rinsing process, and The temperature of the washing water in the washing tank is detected when opening and closing and restarting, and if the water temperature is high, the washing pump is operated intermittently and the inside of the washing tank is opened when the door is opened. Since the warm inflow outside air gradually,
It is possible to prevent the outside air from rapidly expanding.

Further, the control means interrupts the program sequence during the operation of the cleaning pump, opens and closes the door before resuming the program sequence, and the time during which the door is opened is less than the predetermined time set in advance. In this case, since the program sequence is restarted without intermittently operating the cleaning pump, if the program sequence is interrupted while the cleaning pump is operating and the door is opened or closed, the time during which the door is open is measured. If this time is short, that is, if the outside air does not flow into the cleaning tank so much, the program sequence is restarted without performing the intermittent operation of the cleaning pump accompanying the restart, so the When small dishes are added to the washing tank by opening and closing, the program sequence can be restarted without wasteful operation and the operation is completed. It can be prevented to extend the time required for unnecessarily.

Further, the control means interrupts the program sequence during the operation of the cleaning pump, opens and closes the door before restarting the program sequence, and the number of times the door is opened and closed within a predetermined time is a predetermined number of times set in advance. When the cleaning pump is operated, the program sequence is restarted after the cleaning pump is operated intermittently. Therefore, even if you open and close the door for a short time and add small tableware to the washing tank, if you repeat this several times, the outside air will flow into the washing tank and restart. When the cleaning operation is performed, the cleaning pump is intermittently operated to gradually warm the outside air that has flowed into the cleaning tank when the door is opened, so that the outside air can be prevented from expanding rapidly.

Further, an air temperature detecting means for detecting the ambient temperature under the installation environment of the dishwasher is provided, and the control means interrupts the program sequence during the operation of the washing pump and opens and closes the door before restarting the program sequence. If the temperature of the washing water at that time exceeds the preset predetermined temperature and the ambient temperature at this time does not reach the preset predetermined temperature, the program sequence is restarted after intermittently operating the washing pump. Therefore, the program sequence is interrupted while the cleaning pump is operating, the door is opened and closed,
When restarting, the water temperature of the washing water is detected.If the water temperature is high, the atmospheric temperature in the installation environment of the dishwasher is detected.If the atmospheric temperature is low, the washing pump operates intermittently and the door is opened. Since the outside air flowing into the cleaning tank is gradually warmed, it is possible to prevent the outside air from expanding rapidly.

Further, an air temperature detecting means for detecting the ambient temperature under the installation environment of the dishwasher is provided, and the control means interrupts the program sequence during the operation of the washing pump and opens and closes the door before restarting the program sequence. If the ambient temperature at this time is lower than the temperature determined based on the water temperature of the cleaning water at this time, the program sequence is restarted after the cleaning pump is intermittently operated. When the program sequence is interrupted, the door is opened and closed, and the temperature of the outside air that has flowed into the cleaning tank when the door is open is less than or equal to the temperature of the cleaning water in the cleaning tank when restarting, Determine if this outside air expands rapidly.If the temperature of the outside air at this time is lower than the obtained temperature, operate the washing pump properly intermittently and let it flow into the washing tank when the door is opened. Since warm outside air gradually, it is possible to prevent that the outside air is rapidly expanding.

Furthermore, an air temperature detecting means for detecting the ambient temperature under the installation environment of the dishwasher is provided, and the control means interrupts the program sequence during the operation of the washing pump and opens and closes the door before restarting the program sequence. If the ambient temperature at that time exceeds the predetermined temperature set in advance, the program sequence is restarted without intermittently operating the washing pump, so that the dishwasher is installed in a room with a clearly high ambient temperature. In this case, since the temperature of the outside air flowing into the cleaning tank is high even if the door is opened or closed, the program sequence can be restarted without the intermittent operation of the cleaning pump accompanying the restart without making various judgments. It is possible to prevent unnecessarily increasing the time required for completion.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a dishwasher according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing a process of intermittent operation of the washing pump when the door of the dishwasher is opened and closed.

FIG. 3 is a flowchart showing a process of an intermittent operation of the washing pump accompanying the opening and closing of the door of the dishwasher according to the second embodiment of the present invention.

FIG. 4 is a flow chart showing a process of intermittent operation of the washing pump according to opening and closing the door of the dishwasher according to the third embodiment of the present invention.

FIG. 5 is a system configuration diagram of a dishwasher according to a fourth embodiment of the present invention.

FIG. 6 is a flowchart showing a process of intermittent operation of the washing pump when the door of the dishwasher is opened and closed.

FIG. 7 is a flowchart showing a process of intermittent operation of the washing pump accompanying opening and closing of the door of the dishwasher according to the fifth embodiment of the present invention.

FIG. 8 is a flowchart showing a process of an intermittent operation of a washing pump according to opening and closing a door of a dishwasher according to a sixth embodiment of the present invention.

[Fig. 9] System configuration diagram of a conventional dishwasher

FIG. 10 is a flowchart showing a process of intermittent operation of the washing pump when the door of the dishwasher is opened and closed.

[Explanation of symbols]

 1 Cleaning Tank 2 Tableware 4 Cleaning Pump 8 Thermistor (Water Temperature Detection Means) 14 Door 16 Control Means

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Takashi Miyauchi 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Takashi Komatsu 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. 72) Inventor ▲ Takahashi Takehito 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Wataru Hamaguchi 1006, Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (6)

[Claims] 1. A washing tank for storing dishes, a door which is openable and closable for putting the dishes in and out of the washing tank, and washing water in the washing tank is jetted toward the dishes. A cleaning pump, a water temperature detecting means for detecting the water temperature of the cleaning water in the cleaning tank, and a control means for controlling a series of program sequences for cleaning, rinsing and drying the dishes, the control means, If the program sequence is interrupted during the operation of the washing pump and the door is opened and closed until it is restarted, and the water temperature of the washing water at this time exceeds a preset predetermined temperature, the washing pump is intermittently operated. A dishwasher that is designed to restart the program sequence after it has run. 2. The control means interrupts the program sequence during the operation of the cleaning pump, opens and closes the door before restarting the program sequence, and the time during which the door has been opened is less than the preset predetermined time. In this case, the dishwasher according to claim 1, wherein the program sequence is restarted without intermittently operating the washing pump. 3. The control means interrupts the program sequence during the operation of the cleaning pump, opens and closes the door before restarting the program sequence, and the number of times the door is opened and closed within a predetermined time is a predetermined number of times set in advance. 2. The dishwasher according to claim 1, wherein the program sequence is restarted after the washing pump is intermittently operated when exceeding the above range. 4. An air temperature detecting means for detecting an ambient temperature under the installation environment of the dishwasher is provided, and the control means interrupts the program sequence during the operation of the washing pump and opens and closes the door before restarting the program sequence. If the temperature of the washing water at that time exceeds the preset predetermined temperature and the ambient temperature at this time does not reach the preset predetermined temperature, the program sequence is restarted after intermittently operating the washing pump. The dishwasher as claimed in claim 1. 5. An air temperature detecting means for detecting an atmospheric temperature under the installation environment of the dishwasher is provided, and the control means interrupts the program sequence during the operation of the washing pump and opens and closes the door before restarting the program sequence. The dishwasher according to claim 1, wherein the program sequence is restarted after the cleaning pump is intermittently operated when the ambient temperature at this time is lower than the temperature determined based on the water temperature of the cleaning water at this time. 6. An air temperature detecting means for detecting an ambient temperature under the installation environment of the dishwasher, wherein the control means interrupts the program sequence during operation of the washing pump and opens and closes the door before restarting the program sequence. The dishwasher according to claim 1, wherein the program sequence is restarted without intermittently operating the cleaning pump when the ambient temperature at that time exceeds a predetermined temperature set in advance.