JPH11346989A - Dishwasher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently wash a dish. SOLUTION: In a dish washer provided with a controller 52 having a plurality of washing programs, the washing programs being optionally switched by the instruction signal of a user after the start of running, if the user selects a washing program not suited for the staining level of a dish 48 by mistake and starts running, and a program switch is pressed to switch to a washing program suited for the staining level of the dish even during the running of the dish washer. Thus, the user changes the washing program without performing any complicated work only by pressing the program switch even during the running operation. Also, since no new washing water 42 or detergent is supplied during the running operation, the washing water 42 or the detergent supplied initially is effectively used for washing the dish 48.

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 efficiently.

[0002]

2. Description of the Related Art A conventional dishwasher will be described below.

[0003] A conventional dishwasher is shown in FIG.
After storing the tableware basket 8 in which the tableware 7 and the like are stored in a predetermined place, the operation is started by adding a detergent.

When the operation is started, first, the drainage pump 10 is operated to discharge the washing water 3 (called residual water) remaining in the washing tank 1 in the previous operation or the like outside the machine. And
The water supply valve 2 operates to supply the cleaning water 3 to the cleaning tank 1. Then, the cleaning pump 4 pressurizes the cleaning water 3 and injects the cleaning water 3 from the injection holes 6 provided in the nozzle 5 together with the detergent. Thus, the cleaning step is performed. In this cleaning step, the heating element 9 provided in the cleaning tank 1 is energized to heat the cleaning water 3 to a predetermined cleaning temperature.

After a cleaning step for a predetermined time, the tableware 7
The washing water 3 containing the dirt washed off from the apparatus is discharged to the outside of the machine by the drainage pump 10. Subsequently, the washing water 3 is newly supplied, and the washing water 3 is jetted again from the jetting holes 6 provided in the nozzle 5. ), A step of rinsing the dishes 7 and the like contaminated with the above is executed. When the rinsing step is completed, the washing water 3 is discharged again to the outside of the machine. This rinsing step is repeated several times continuously. In the washing and rinsing steps, the residual vegetables are collected in the filter 11 provided in the washing tank 1. When the predetermined number of rinsing steps is completed, the operation of the dishwasher is completed.

[0006]

However, the conventional dishwasher has the following problems. In a conventional dishwasher, as shown in FIG.
2 includes a power switch 13 for turning on and off the dishwasher, a start switch 14 for starting and temporarily stopping the operation, a program switch 15 for selecting a washing program 16, and the like. After the user presses the power switch 13 to turn on the dishwasher, the program switch 15 selects a washing program 16 according to the degree of contamination of the dish 7, and presses the start switch 14 to start the operation of the dishwasher. Is what you do.

[0007] However, the cleaning program 1
If the user selects 6 and starts the operation, or if the user wants to change the washing program 16 after the start of the operation, the user presses the power switch 13 to turn off the dishwasher and turn off the dishwasher. After the operation was stopped, it was necessary to press the power switch 13 again to turn on the dishwasher, select the desired washing program 16 by the program switch 15, and press the start switch 14 to start the operation. Therefore, when changing the washing program 16 of the running dishwasher, there is a problem that the user needs to perform many operations.

[0008] When the operation is started again,
Since the dishwasher determines that the washing water 3 and the detergent supplied first after starting the operation are residual water, the washing water 3 and the detergent supplied first are not effectively used for washing the dishes 7 and the drainage pump is not used. Due to 10, it is discharged outside the machine. For this reason, the user needs to re-enter the detergent, and there is a problem that the washing water 3 and the detergent are discharged outside the machine without being effectively used.

Then, as shown in FIG. 15, a cleaning program 16 mainly includes a standard program 17 for cleaning the tableware 7 having a standard degree of contamination, and shortening the cleaning time when the degree of contamination of the tableware 7 is light. Speedy program 1 for cleaning
8. There is a careful program 19 for extending the washing time and cleaning when the degree of contamination of the tableware 7 is severe. In any of the washing programs 16, the pressure applied by the washing pump 4 to the washing water 3 is substantially constant. In addition, the washing time is shortened or lengthened, and washing is performed in accordance with the degree of contamination of the tableware 7. Therefore, it is possible to wash dirt by washing by increasing the washing water pressure of the washing water 3 injected from the injection holes 6 and washing the washing water 3 longer than washing for a long time by extending the washing time. No, washing water 3
Since the pressure for pressurizing the dishware is substantially constant, there is also a problem that the operation noise of the dishwasher is reduced and the dishes 7 cannot be washed.

SUMMARY OF THE INVENTION In view of the above problems, it is a first object of the present invention to enable a user to select a cleaning program without having to feel bothered and by effectively using cleaning water and detergent.

It is a second object of the present invention to make the washing program more suitable for the degree of soiling of dishes.

A third object is to reduce the operation noise of the dishwasher for a time required by the user.

It is a fourth object of the present invention to reduce the operation noise of the dishwasher for the time required by the user by reducing the troublesomeness.

A fifth object is to automatically reduce the operation noise of the dishwasher according to the situation.

It is a sixth object of the present invention to efficiently wash dishes without changing the amount of water used.

[0016]

SUMMARY OF THE INVENTION In the dishwasher of the present invention, a washing tank, a tableware for storing dishes and the like, a washing pump for pressurizing washing water in the washing tank, and a jet for jetting washing water are provided. A nozzle with a hole, a drain pump for discharging washing water, and a control device having a plurality of washing programs are provided. The washing program is arbitrarily switched according to a user's instruction signal after the start of operation. is there.

According to the present invention, the user can select a cleaning program without feeling bothersome and by effectively using the cleaning water and the detergent.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention provides a cleaning tank, a tableware for accommodating dishes and the like, a cleaning pump for pressurizing the cleaning water in the cleaning tank, and spraying the cleaning water. A nozzle having an injection hole, a drain pump for discharging cleaning water, and a control device having a plurality of cleaning programs,
After the start of operation, the washing program is switched arbitrarily according to the user's instruction signal.When using the dishwasher, the user puts in a predetermined amount of detergent in the washing tank and then turns on the power switch. Press to turn on the dishwasher, and press the program switch to select a washing program according to the stain on the dish. Then press the start switch to start the operation, but if you start the operation of the dishwasher by selecting a speedy program for dishes with a standard level of dirt, or a careful program for dishes with a light level of dirt If the user mistakenly selects a cleaning program that does not conform to the degree of dishwashing, such as when the user selects and starts the operation, the user starts the operation of the dishwasher. By pressing the program switch even during the operation, the washing program can be changed to a washing program suitable for the degree of contamination of the tableware. For this reason, the user presses the power switch to turn off the dishwasher, stops the operation of the dishwasher as in the conventional dishwasher, supplies the detergent again, and turns on the power switch, program switch, start switch. The washing program can be changed only by pressing the program switch while the operation is in progress, without performing the cumbersome operation of starting the operation of the dishwasher by pressing.

Further, since the initially supplied washing water and detergent are not discharged to the outside of the machine by the drain pump and fresh washing water and detergent are not supplied, the initially supplied washing water and detergent are not used for tableware. It has an effect that it can be effectively used for cleaning.

According to a second aspect of the present invention, in addition to the first aspect, a pump control means for controlling the cleaning pump is provided, and the pump control means operates the cleaning pump in conjunction with the switching of the cleaning program. By changing the pressing force to pressurize the washing water, in the strong program, the pump control means controls the washing pump so that the washing pump can increase the pressing force to pressurize the washing water.
High-strength washing water can be supplied to a strong dirt that cannot be washed by a careful program in which a washing time is extended and washing is performed for a long time, and washing performance of tableware can be improved.

Further, in the silent program, the cleaning pump can reduce the pressing force for pressurizing the cleaning water under the control of the pump control means, so that the cleaning noise and the electric motor generated by the collision of the cleaning water with the dishes and the cleaning tank are reduced. Can be reduced. Therefore, it is possible to wash the dishes while reducing the operation noise of the dishwasher.

Further, even after the operation of the dishwasher is started, the user can arbitrarily switch the washing program by the program switch. If you want to reduce the noise and wash the dishes at the beginning of the operation, or if you want to wash the dishes quickly without worrying about the noise from the middle of the operation, you need to meet the usage environment and requirements of the user. The cleaning program can be switched accordingly.

According to a third aspect of the present invention, in addition to the second aspect of the present invention, a changeover switch is provided in conjunction with the pump control means. By changing the pressure applied to the dishwasher, the dishwasher performs washing of the dish according to a washing program selected from among a standard program, a speedy program, a meticulous program, or a strong program. When watching the TV, talking with family members or acquaintances, or talking on the phone, etc., when the operating noise generated from the dishwasher is large, the user can press the switch to control the pump. Means to change the pressure at which the cleaning pump pressurizes the cleaning water from the cleaning water pressure in the selected cleaning program to a low pressure. Since, it is possible to wash water to reduce the noise due to operation of the washing noise and motor caused by washing the dishes and the like.

When the user finishes watching the television or ends the conversation with the family, acquaintance or telephone and is not conscious of the driving noise from the dishwasher, the user presses the changeover switch again, The washing pump changes the pressure applied to the washing water from the low pressure to the washing water pressure in the selected washing program, so that the tableware can be washed again by the washing means according to the selected washing program. Have.

According to a fourth aspect of the present invention, in addition to the third aspect of the present invention, a timer which can be set for an arbitrary time and operates in conjunction with a signal from a changeover switch is provided. The dishwasher performs washing of dishes and the like according to the selected washing program by changing the pressure applied by the pump to pressurize the washing water, but in the washing or rinsing process, the operating noise generated by the dishwasher is felt to be large. At times, the user sets a required time on a timer and presses a changeover switch, so that the cleaning pump changes the pressure for pressurizing the cleaning water from the cleaning water pressure in the selected cleaning program to a low pressure by the pump control means. Therefore, it is possible to reduce the washing noise caused by washing the dishes and the like with the washing water and the noise due to the operation of the electric motor. At this time, the timer operates at the same time.

When the set time has elapsed, the timer sends a signal to the pump control means, and based on the signal, the pump control means causes the cleaning pump to reapply the cleaning water at a pressure according to the selected cleaning program. Press and wash dishes. Therefore, when the user is conscious of the operation noise of the dishwasher, by setting the time required for the timer and pressing the changeover switch, the operation noise of the dishwasher can be reduced by the set time. After the elapse of the set time, the washing water is automatically pressurized again by the washing means according to the selected washing program, so that the dishes and the like can be washed.

[0027] The invention according to claim 5 provides the invention according to claims 2 to 4.
In addition to the invention of any one of the above, in addition to the human body detecting means for detecting a human body, the human body detecting means by changing the pressure applied by the cleaning pump pressurized cleaning water, a standard program, speedy program, elaborate program or In the powerful program, the dishwasher cleans dishes etc. according to the selected washing program, but if the user is near the dishwasher or approaches the dishwasher while washing the dish, human body detection is performed. The means detects that a person is present around the dishwasher. Since the pressure applied by the washing pump to pressurize the washing water is changed from the washing water pressure in the selected washing program to a low pressure by the pump control means, the washing water reduces washing noise for washing dishes and noise caused by the operation of the electric motor. can do.

If the user moves away from the dishwasher or is not around the dishwasher, the human body detecting means detects that there is no person around the dishwasher. And
The washing control pump changes the pressure applied to the washing water from the low pressure to the washing water pressure in the selected washing program by the pump control means, so that the dishes and the like are washed again by the washing means according to the selected washing washing program. Can be. Therefore, if the user is in the vicinity of the dishwasher, the operating pressure of the dishwasher is reduced by lowering the washing water pressure to wash the dishes, and the dish is washed in the vicinity of the dishwasher. The washing water pressure of the water can be adjusted to a pressure according to the selected washing program, so that the dishes and the like can be washed.

[0029] The invention described in claim 6 is the invention according to claims 1 to 5.
In addition to the invention described in any one of the above aspects, the cleaning pump periodically changes the pressure for pressurizing the cleaning water, so that in the strong program, the cleaning pump pressurizes the cleaning water with the cleaning water pressure in the strong program. At this time, the supply amount of the washing water is not the amount of water suitable for the strong program, but is substantially the same as the standard program, the speedy program, and the careful program, and the amount of the washing water is small.

When air enters the washing pump, the washing pump falls into a state where air cannot be applied to the washing pump at a predetermined pressure, but before the air tries to enter the washing pump, the washing water is suitable for the supply amount. By applying pressure with the applied pressure, it is possible to prevent air from being mixed into the cleaning pump, and the cleaning pump can pressurize the cleaning water with a pressure suitable for the supplied water amount. Then, the pressure for pressurizing the washing water is temporarily changed from the pressure suitable for the water supply amount to the pressure in the strong program, and the pressure is again adjusted to the pressure suitable for the water supply amount before the cleaning pump sees air. By repeating the above, the washing pump is not spilled, and the standard program, speedy program,
It can supply high-pressure washing water and more washing energy than the elaborate program.

Further, since a weak water flow and a strong water flow can be alternately supplied to tableware and filth, it is possible to apply cleaning energy having a strong and weak change to filth and the like, so that efficient cleaning can be performed. Has the effect of being able to.

[0032]

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 40 denotes a cleaning tank, 41 denotes a water supply valve for supplying cleaning water 42 into the cleaning tank 40, 43 denotes a cleaning pump, and 44 denotes a motor for driving the cleaning pump 43, which drives the motor 44. The washing pump 43 is used for washing water 4
2 can be pressurized. Reference numeral 45 denotes a nozzle, and reference numeral 46 denotes an injection hole provided in the nozzle 45. The cleaning water 43 is pressurized by a cleaning pump 43 and supplied to the nozzle 45 to be supplied to the nozzle 45.
It is further injected into the cleaning tank 40. 47 is a tableware basket for accommodating tableware 48 and the like in the washing tank 40, 49 is a filter for collecting residual vegetables and the like, 50 is a heating element, and 51 is a drainage pump for discharging the washing water 42 out of the machine.

In FIG. 2, reference numeral 52 denotes a control device.
It has a power switch 53 for turning on and off the dishwasher, a start switch 54 for starting and temporarily stopping the operation, and a program switch 55 for selecting a washing program 56. As shown in FIG. 3, the main cleaning program 56 includes a standard program 57 for cleaning the tableware 48 having a standard degree of contamination, and reducing the cleaning time and the number of times of rinsing when the degree of contamination of the tableware 48 is light. There are a plurality of programs, such as a speedy program 58 for cleaning by reducing the amount of cleaning, a meticulous program 59 for cleaning by extending the cleaning time when the degree of contamination of the dishes 48 is severe, and a program switch 55 even after the operation of the dishwasher is started.
By pressing, these cleaning programs 56 can be arbitrarily switched.

The operation of the above configuration will be described below. A predetermined amount of detergent is put into the washing tank 40, and the tableware 48 and the like are stored in the tableware basket 47. After storing the tableware 48 and the like, the power switch 53 is pressed to turn on the tableware washer, and the program switch 55 is pressed to select a cleaning program 56 according to the contamination of the tableware 48. Then, the operation is started by pressing the start switch 54. When the operation starts, first, the drainage pump 51 operates to discharge the residual water remaining in the washing tank 40 to the outside of the machine. Then, when the water supply valve 41 is energized, the cleaning water 42 is supplied. When the cleaning water 42 reaches a predetermined amount, the cleaning pump 43 is driven by the electric motor 44 to pressurize the cleaning water 42. The pressurized cleaning water 42 is supplied to a nozzle 45 and the injection holes 4 provided in the nozzle 45
Injected from 6. Then, the cleaning water 42 is supplied to the cleaning tank 40, the tableware 48, and the like.

Thus, a washing step for washing the tableware 48 and the like is performed. In the cleaning step, the cleaning water 42 is heated to a predetermined cleaning temperature by energizing the heating element 50. After a cleaning process for a predetermined time, the drain pump 51 operates,
Wash water 42 containing dirt and the like washed off from tableware 48 and the like
Is carried out to discharge the water outside the machine. Then, the cleaning water 42 is newly supplied, and the injection hole 4 provided in the nozzle 45 is provided.
The washing water 42 is sprayed from 6 to perform a step of rinsing the tableware 48 and the like contaminated with detergent, residual vegetables and the like. After this step is completed, the washing water 42 is discharged outside the machine again.

This rinsing step is repeated several times continuously, and the rinsing step is completed. The remaining vegetables are collected in a filter 49 provided in the washing tank 40. After the rinsing step, the operation of the dishwasher is terminated.

According to the first embodiment of the present invention constructed as described above, when using a dishwasher, the user puts a predetermined amount of detergent into the washing tank 40 and then turns on the power switch 53. Is pressed to turn on the dishwasher, and the program switch 55 is pressed to select a washing program 56 according to the stain on the dish 48. And start switch 5
4 is pressed to start the operation, but if the speedy program 58 is selected to start the operation of the dishwasher for the tableware 48 having a standard degree of soiling, or the tableware 48 having a light level of soiling is selected. If the user mistakenly selects the cleaning program 56 that does not conform to the degree of contamination of the tableware 48 and starts the operation, for example, if the user selects the careful program 59 and starts the operation, the user When the program switch 55 is pressed even during the operation of the dishwasher, the washing program 5 adapted to the degree of contamination of the dish 48 can be obtained.
6 can be changed. For this reason, the user presses the power switch 53 to turn off the dishwasher and stops the operation of the dishwasher as in the conventional dishwasher. Instead of pressing the start switch 54 to start the operation of the dishwasher, the washing program 56 can be changed only by pressing the program switch 55 during operation.

Further, the washing water 42 and the detergent supplied first are discharged to the outside of the machine by the drain pump 51 and newly added to the washing water 4.
Since the cleaning liquid 42 and the detergent are not supplied, the cleaning water 42 and the detergent supplied first can be effectively used for cleaning the tableware 48. Therefore, the washing program 56 can be arbitrarily switched without the user feeling troublesome even during the operation of the dishwasher, and the washing water 42 and the detergent can be used effectively.

In the dishwasher, at the next operation,
The cleaning program 56 finally selected in the previous operation is stored, and the operation is performed according to the program.

(Embodiment 2) The overall configuration is the same as that of the first embodiment, and a description thereof will be omitted.

However, in FIG.
By controlling the electric motor 44 by the pump control means 60, the cleaning pump 43 can change the pressing force for pressurizing the cleaning water 42. As shown in FIG. 5, as a main cleaning program 56, a powerful program 61 and a silent program 62 are provided in addition to a standard program 57, a speedy program 58, and a careful program 59. As shown in FIG. 6, the strong program 61 controls the electric motor 44 by the pump control means 60 so that the cleaning pump 43
The washing program 43 is used to wash the tableware 48 at a pressure higher than the standard program 57, the speedy program 58, and the elaborate program 59. 57, the speedy program 58 and the elaborate program 59 are used to clean the tableware 48.

Further, the silent program 62 performs the cleaning by making the cleaning time longer or increasing the number of times of rinsing as compared with the other cleaning programs 56. Further, similarly to the first embodiment, the user can arbitrarily switch these cleaning programs 56 even after the operation of the dishwasher is started. Then, the powerful program 61 is for cleaning the tableware 48 and the like by increasing the supply amount of the washing water 42 as compared with the standard program 57, the speedy program 58, and the careful program 59, and the silent program 62 is for cleaning by reducing the water supply amount. Is what you do.

According to the second embodiment of the present invention configured as described above, in the strong program 61, the pump control means 60 controls the electric motor 44 so that the cleaning pump 43 pressurizes the cleaning water 42. Since the pressure can be increased, high-pressure washing water 42 can be supplied to clean strong dirt that cannot be washed by the elaborate program 59 for extending the washing time and washing for a long time. 48 can improve the cleaning performance.

Further, in the silent program 62, the cleaning pump 43 is controlled by the pump control means 60 so that the cleaning water 43
Since the pressing force for pressurizing 2 can be reduced, it is possible to reduce the cleaning noise generated by the cleaning water 42 colliding with the tableware 48 and the cleaning tank 40 and the noise generated by the electric motor 44. Therefore, the tableware 48 can be washed while reducing the operation noise of the dishwasher.

Further, the user can arbitrarily switch the washing program 56 by the program switch 55 even after the operation of the dishwasher is started. Use by the user, for example, when the user wants to reduce the operating noise and clean the operation from the middle, or when the operation starts, wants to reduce the operation noise and cleans the table 48 quickly without worrying about the operation noise. The cleaning program 56 can be switched according to the environment and requirements.

As described above, the cleaning program 56 is used for the tableware 48.
The cleaning can be performed more appropriately according to the degree of contamination of the user, and the operation program can be switched according to the use environment and the demand of the user.

The speedy program 58 sets the pressure of the washing water 42 to a high pressure in the same manner as the strong program 61,
Further, the tableware 48 may be washed with a shorter washing time.

When the cleaning program 56 is switched after the start of the operation, the newly selected cleaning program 5 is selected.
The cleaning may be performed from the part of the operation step 6 except for the step of draining the first cleaning water 42, or may be performed in accordance with the newly selected cleaning program 56 from the step at the time of switching. It may perform the means.

The supply amount of the washing water 42 is controlled by the standard program 57, the speedy program 58, the careful program 59, and the silent program 62, as well as the powerful program 61.
Or the silent program 62 may have substantially the same water volume as the standard program 57, the speedy program 58, and the careful program 59.

(Embodiment 3) The overall configuration is the same as that of the first embodiment, and a description thereof will be omitted. However, in FIGS. 7 and 8, a changeover switch 63 controls the cleaning pump 43 in conjunction with the pump control means 60. Then, by pressing the changeover switch 63 in the washing or rinsing step, the pressure applied by the washing pump 43 to pressurize the washing water 42 under the control of the pump control means 60 can be changed from high pressure to low pressure or from low pressure to high pressure. .

According to the third embodiment of the present invention constructed as described above, the dishwasher according to the present invention has a dishwasher 56 selected from a standard program 57, a speedy program 58, a meticulous program 59 and a powerful program 61. 48, etc., but in the washing or rinsing process, when the user watches television, talks with family members or acquaintances, or talks over the telephone, the operating noise generated from the dishwasher is reduced. When the user feels that the pressure is large, the user presses the changeover switch 63, and as shown in FIG.
Since the washing water pressure is changed from the washing water pressure at
2 can reduce the washing noise caused by washing the tableware 48 and the like and the noise caused by the operation of the electric motor 44.

When the user finishes watching the television or ends the conversation of the family, acquaintance or telephone and is not conscious of the driving noise from the dishwasher, the user presses the changeover switch 63 again. The washing pump 43 is used for washing water 4
Since the pressing force for pressurizing 2 is changed from the low pressure to the washing water pressure in the selected washing program 56, the tableware 48 and the like can be washed again by the washing means according to the selected washing program 56.

Therefore, when the user is conscious of the operation noise of the dishwasher, the operation noise of the dishwasher can be reduced by pressing the changeover switch 63. By pressing the changeover switch 63 again, the tableware 48 and the like can be washed by the washing means in accordance with the selected washing program 56, so that the operation noise of the dishwasher is temporarily stopped for a time required by the user. Can be reduced.

The changeover switch 63 may be of a type that allows the user to arbitrarily switch the pressure for pressurizing the washing water 42.

(Embodiment 4) The overall configuration is the same as that of the first embodiment, and a description thereof will be omitted.

However, in FIG. 10, reference numeral 64 denotes a timer capable of arbitrarily setting a time.
3 is pressed, the pump control means 60 causes the cleaning pump 4
The timer 64 operates while the pressure for pressurizing the washing water 42 is reduced to a low pressure. Then, when the time set in the timer 64 elapses, the timer 64 sends a signal to the pump control means 60, and based on the signal, the pump control means 60 causes the cleaning pump 43 to add the cleaning water 42 according to the selected cleaning program 56. It is configured to press and clean the dishes 48.

According to the fourth embodiment of the present invention configured as described above, the dishwasher is provided with the selected cleaning program 5.
The washing of the tableware 48 and the like is performed in accordance with the procedure of FIG.
When the switch is set to 4, and the changeover switch 63 is pressed, the pump control means 60 causes the cleaning pump 43 to change the pressure for pressurizing the cleaning water 42 from the cleaning water pressure in the selected cleaning program 56 to a low pressure. Therefore, it is possible to reduce the washing noise caused by the washing water 42 washing the tableware 48 and the like and the noise caused by the operation of the electric motor 44. At this time, the timer 64 operates at the same time.

When the set time has elapsed, the timer 64 sends a signal to the pump control means 60, and based on the signal, the pump control means 60 causes the cleaning pump 43 to apply a pressure according to the selected cleaning program 56. The washing water 42 is pressurized again, and the tableware 48 is washed. Therefore, when the user is conscious of the operation noise of the dishwasher, the timer 6 is used.
By setting the time required for 4 and pressing the changeover switch 63, the operation noise of the dishwasher can be reduced by the set time, and after the time set in the timer 64 has elapsed, the selection is automatically made again. The washing water 42 is pressurized by the washing means in accordance with the washing program 56 and the dishes 48 and the like can be washed, so that the troublesomeness is reduced, and the dishes are temporarily washed only for the time required by the user. The operation noise of the machine can be reduced.

(Embodiment 5) The overall configuration is the same as that of the first embodiment, and a description thereof will be omitted. However, in FIG. 11, reference numeral 65 denotes a human body detecting means capable of detecting whether or not there is a person around the dishwasher. Also,
The human body detection means 65 controls the cleaning pump 43 in conjunction with the pump control means 60.

According to the fifth embodiment of the present invention configured as described above, the standard program 57, the speedy program 58, the elaborate program 59, or the powerful program 6
1. In the dishwasher, the selected washing program 5
The washing of the tableware 48 and the like is performed according to 6. If the user is in the vicinity of the dishwasher or approaches the dishwasher during the washing of the tableware 48, the human body detecting means 65 sets the person near the dishwasher. Is detected. Then, as shown in FIG. 12, the cleaning control unit 60 changes the pressing force of the cleaning pump 43 to pressurize the cleaning water 42 from the cleaning water pressure in the selected cleaning program 56 to a low pressure. And the noise caused by the operation of the electric motor 44 can be reduced.

If the user is away from the dishwasher or not near the dishwasher, the human body detecting means 65
Detects that there are no people around the dishwasher. Then, since the cleaning pump 43 changes the pressurizing pressure for pressurizing the cleaning water 42 from the low pressure to the cleaning water pressure in the selected cleaning program 56 by the pump control means 60, the cleaning means according to the selected cleaning cleaning program 56 again. Can wash the dishes 48 and the like. Therefore, when the user is in the vicinity of the dishwasher, the operating noise of the dishwasher is reduced by lowering the washing water pressure of the washing water 42 to wash the dish 48, and the user is not in the vicinity of the dishwasher. Sets the washing water pressure of the washing water 42 to a pressure according to the selected washing program 56 to wash the dishes 49 and the like. Therefore, the operation noise of the dishwasher can be automatically reduced according to the situation around the dishwasher, and the discomfort given to the user by the dishwasher due to the operation noise can be reduced.

(Embodiment 6) The overall configuration is the same as that of the first embodiment, and a description thereof will be omitted. However, in the strong program 61, the cleaning water 42 supplied from the water supply valve 41 is used.
Is approximately the same as the standard program 57, the speedy program 58, and the careful program 59. As shown in FIG. 13, the cleaning pump 43 pressurizes the cleaning water 42 while periodically changing the cleaning water pressure in the standard program 57, the speedy program 58, the careful program 59, and the cleaning water pressure in the strong program 61. .

According to the fifth embodiment of the present invention configured as described above, in the strong program 61, the cleaning pump 43 pressurizes the cleaning water 42 with the cleaning water pressure in the strong program 61. The water supply amount of 42 is not the water amount suitable for the powerful program 61 but the standard program 5
7. Speedy program 58, elaborate program 59
And the amount of the cleaning water 42 is small, so that the cleaning pump 43 tries to mix air. Cleaning pump 4
When air enters the cleaning pump 3, the cleaning pump 43 falls into a state in which the cleaning water 42 cannot be pressurized at a predetermined pressure (this state is referred to as an air seeping state), but as shown in FIG. Before the mixing, the cleaning water 42 is pressurized at a pressure suitable for the amount of water supplied to the cleaning pump 43.
The cleaning pump 43 can pressurize the cleaning water 42 with a pressure suitable for the amount of water supplied.

Then, as shown in FIG.
Is temporarily changed from the pressure suitable for the water supply amount to the pressure force in the strong program 61, and the operation of again setting the pressure suitable for the water supply amount before the cleaning pump 43 sees air is repeated. In this way, the washing pump 43 is supplied with high-pressure washing water 42 and a larger amount of washing energy than the standard program 57, the speedy program 58, and the careful program 59 without causing the washing pump 43 to be in an air-filled state, and for the tableware 48 and dirt. Can be. Further, since the weak water flow and the strong water flow can be alternately supplied to the tableware 48 and the filth, it is possible to apply cleaning energy having a strong and weak change to the filth and the like, and it is possible to efficiently clean the filth.
Therefore, in the powerful program 61, the tableware 48 and filth can be washed more strongly than the standard program 57, the speedy program 58, and the careful program 59 without increasing the amount of the washing water 42 supplied.

[0066]

As described above, according to the present invention, there is provided a washing tank, a tableware for storing dishes, a washing pump for pressurizing washing water in the washing tank, and an injection hole for injecting washing water. Nozzle, a drain pump for discharging washing water, and a control device having a plurality of washing programs. After the operation starts, the washing program is arbitrarily switched by a user's instruction signal, so that the operation starts. Later, if the user mistakenly selects a cleaning program that does not conform to the degree of dishwashing and starts the operation, the user can press the program switch even while the dishwasher is operating, by pressing the program switch. The cleaning program can be changed to a cleaning program suitable for the degree of contamination.

For this reason, the user presses the power switch to turn off the dishwasher, stops the operation of the dishwasher as in the conventional dishwasher, turns on the detergent again, and turns on the power switch and the program switch. The washing program can be changed only by pressing the program switch even during the operation, without performing the troublesome work of pressing the start switch to start the operation of the dishwasher.
In addition, since the washing water and detergent supplied first are not discharged to the outside of the machine by the drain pump, new washing water and detergent are not supplied, so the washing water and detergent supplied first are effective for washing dishes. Can be used for

Accordingly, it is possible to provide a dishwasher in which the washing program can be arbitrarily switched without the user feeling troublesome even during the operation of the dishwasher, and the washing water and the detergent can be used effectively. it can.

Further, the present invention is provided with pump control means for controlling the cleaning pump, and the pump control means changes the pressure applied by the cleaning pump to pressurize the cleaning water in conjunction with the switching of the cleaning program, thereby providing a high power. In the program, the pump control means controls the cleaning pump, so that the cleaning pump can increase the pressure for pressurizing the cleaning water. High-pressure washing water can be supplied and washed for unreliable strong dirt, and the washing performance of tableware can be improved.

Further, in the silent program, the cleaning pump can reduce the pressing force for pressurizing the cleaning water under the control of the pump control means, so that the cleaning noise and electric motor generated by the collision of the cleaning water with the dishes and the cleaning tank are reduced. Can be reduced. Therefore, it is possible to wash the dishes while reducing the operation noise of the dishwasher. Furthermore, even after the operation of the dishwasher is started, the user can arbitrarily switch the washing program using the program switch, so that even when the operation noise is high, the dishes are washed strongly even if the operation noise is high, and the operation noise is reduced halfway. If you want to wash the dishes at the beginning of the operation, or conversely, wash the dishes with low operating noise and wash the dishes quickly without worrying about the operating noise in the middle, etc. You can switch programs.

As described above, it is possible to provide a dishwasher in which the washing program can be adapted to the degree of contamination of the dish and can be changed, and the operation program can be switched according to the user's use environment and requirements. .

Further, according to the present invention, there is provided a changeover switch interlocked with the pump control means, and the changeover switch switches the pressure applied by the washing pump to pressurize the washing water in conjunction with the instruction signal from the user, so that the dishwasher can be used. Wash dishes and dishes according to the washing program selected from the standard program, speedy program, meticulous program, or strong program.However, in the washing or rinsing process, the user watches TV, talks with family members or acquaintances, and makes telephone calls. The user presses the changeover switch when the operating noise generated by the dishwasher is large, such as when talking with the user, and the pump control means selects the pressing pressure at which the cleaning pump pressurizes the cleaning water. The cleaning water is changed from the cleaning water pressure in the cleaning program to a low pressure, so that the cleaning water It is possible to reduce the noise due to operation of the resulting washing noise and motor Ri.

When the user finishes watching the television or ends the conversation with the family, acquaintance, or telephone and is not conscious of the driving noise from the dishwasher, the user presses the changeover switch again. Since the cleaning pump changes the pressure applied to pressurize the cleaning water from the low pressure to the cleaning water pressure in the selected cleaning program, the dishes and the like can be cleaned again by the cleaning means according to the selected cleaning program.
Therefore, if the user is conscious of the operation noise of the dishwasher, the operation noise of the dishwasher can be reduced by pressing the changeover switch. By pressing, the dishes can be washed by the washing means according to the selected washing program, so that the tableware can temporarily reduce the operation noise of the dishwasher for a time required by the user. A washing machine can be provided.

Further, the present invention provides a timer which can be set to an arbitrary time and operates in conjunction with a signal of a changeover switch. The timer changes the pressure applied by the washing pump to pressurize the washing water after the set time has elapsed. In the washing or rinsing process, when the user feels that the operation noise generated by the dishwasher is loud, the user sets a necessary time on a timer and presses a changeover switch, so that the washing pump adds washing water by the pump control means. The pressure to be applied is changed from the cleaning water pressure in the selected cleaning program to a low pressure. Therefore, it is possible to reduce the washing noise caused by washing the dishes and the like with the washing water and the noise due to the operation of the electric motor. At this time, the timer operates at the same time,
When the set time elapses, the timer sends a signal to the pump control means, and based on the signal, the cleaning pump re-pressurizes the washing water with a pressure according to the selected washing program by the pump control means, and cleans the dishes. I do.

Accordingly, when the user is conscious of the operation noise of the dishwasher, the time required for the timer is set and the changeover switch is pressed, whereby the operation noise of the dishwasher can be reduced by the set time. The present invention provides a dishwasher capable of washing washing dishes by pressurizing washing water with washing means according to a selected washing program automatically after a time set on a timer has elapsed. be able to.

Further, the present invention provides a human body detecting means for detecting a human body, and the human body detecting means is provided in a standard program, a speedy program, a meticulous program, or a powerful program by changing the pressure applied by a cleaning pump to pressurize cleaning water. If the user is near the dishwasher or approaches the dishwasher while washing the dishes, the human body detecting means detects that a person is present around the dishwasher. Since the pressure applied by the washing pump to pressurize the washing water is changed from the washing water pressure in the selected washing program to a low pressure by the pump control means, the washing water reduces washing noise for washing dishes and noise caused by the operation of the electric motor. can do.

If the user moves away from the dishwasher or is not near the dishwasher, the human body detecting means detects that there is no person around the dishwasher. And
The washing control pump changes the pressure applied to the washing water from the low pressure to the washing water pressure in the selected washing program by the pump control means, so that the dishes and the like are washed again by the washing means according to the selected washing washing program. Can be. Therefore, if the user is in the vicinity of the dishwasher, the operating pressure of the dishwasher is reduced by lowering the washing water pressure to wash the dishes, and the dish is washed in the vicinity of the dishwasher. The tableware and the like can be washed by setting the washing water pressure of the water to a pressure according to the selected washing program.
Therefore, the dishwasher can automatically reduce the operation noise of the dishwasher according to the situation around the dishwasher, and can reduce the discomfort given to the user by the dishwasher due to the operation noise. Can be provided.

Further, according to the present invention, the cleaning pump periodically changes the pressing force for pressurizing the cleaning water, so that in the strong program, the supply amount of the cleaning water is not a water amount suitable for the strong program but a standard program, a speedy program. However, since the amount of washing water is almost the same as that of the elaborate program and the amount of washing water is small, air is likely to be mixed into the washing pump, but before the air is mixed into the washing pump, the washing water is applied with a pressure suitable for the supply amount. By applying pressure, it is possible to prevent air from being mixed into the cleaning pump, and the cleaning pump can pressurize the cleaning water with a pressure suitable for the supplied water amount.
Then, the pressing force for pressurizing the washing water is temporarily changed from the pressing force suitable for the supplied water amount to the pressing force in the strong program,
By repeating the operation of setting the pressure suitable for the water supply amount again before the washing pump sees air, without causing the washing pump to see air, standard programs, speedy programs, etc. It can supply high-pressure washing water and more washing energy than the elaborate program.

Further, since a weak water flow and a strong water flow can be alternately supplied to tableware, filth, etc., it is possible to apply cleaning energy having a strong and weak change to filth, etc., and it is possible to efficiently clean. it can. Therefore, it is possible to provide a dishwasher that can wash dishes, dirt, and the like more strongly than the standard program, the speedy program, and the elaborate program without increasing the supply amount of washing water in the strong program.

[Brief description of the drawings]

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

FIG. 2 is an enlarged view of a control device of the dishwasher.

FIG. 3 is a diagram showing a change in washing water temperature in each washing program of the dishwasher.

FIG. 4 is a configuration diagram of a dishwasher according to a second embodiment of the present invention.

FIG. 5 is an enlarged view of a control device of the dishwasher.

FIG. 6 is a diagram showing a relationship between a washing water pressure and a washing water in each washing program of the dishwasher.

FIG. 7 is a configuration diagram of a dishwasher according to a third embodiment of the present invention.

FIG. 8 is an enlarged view of a control device of the dishwasher.

FIG. 9 is a diagram showing a change in wash water pressure of wash water when the changeover switch of the dishwasher is used.

FIG. 10 is an enlarged view of a dishwasher control device according to a fourth embodiment of the present invention.

FIG. 11 is a configuration diagram of a dishwasher according to a fifth embodiment of the present invention.

FIG. 12 is a diagram showing a change in washing water pressure of washing water when the human body detecting means of the dishwasher operates.

FIG. 13 is a diagram showing a change in washing water pressure of washing water in a strong program of a dishwasher according to a sixth embodiment of the present invention.

FIG. 14 is a configuration diagram of a conventional dishwasher.

FIG. 15 is an enlarged view of a conventional dishwasher control device.

[Explanation of symbols]

 Reference Signs List 40 cleaning tank 42 cleaning water 43 cleaning pump 44 electric motor 45 nozzle 46 injection hole 47 tableware basket 51 drainage pump 52 control device 56 cleaning program 60 pump control means 63 changeover switch 64 timer 65 human body detecting means

Claims (6)

[Claims] 1. A washing tank, a tableware for storing dishes and the like, a washing pump for pressurizing washing water in the washing tank, a nozzle having an injection hole for injecting washing water, and discharging the washing water. A dishwasher comprising a drainage pump and a control device having a plurality of washing programs, wherein the washing program is arbitrarily switched by an instruction signal from a user after the start of operation. 2. A pump control means for controlling a cleaning pump, wherein the pump control means changes a pressure applied by the cleaning pump to pressurize cleaning water in conjunction with switching of a cleaning program. The dishwasher according to 1. 3. A dishwasher according to claim 2, further comprising a changeover switch interlocked with a pump control means, wherein said changeover switch switches the pressure applied by the washing pump to pressurize the washing water in response to a user's instruction signal. . 4. A timer capable of setting an arbitrary time and operating in conjunction with a signal from a changeover switch, wherein the pump control means changes a pressure applied by the cleaning pump to pressurize the cleaning water after a lapse of the set time. The dishwasher according to claim 3. 5. The dishwashing apparatus according to claim 2, further comprising a human body detecting means for detecting a human body, wherein the human body detecting means is configured to change a pressure applied by the cleaning pump to pressurize the cleaning water. Machine. 6. The dishwasher according to claim 1, wherein the washing pump is configured to periodically change a pressure for pressurizing the washing water.