KR100207230B1 - Cleaning method of dishwasher - Google Patents

Abstract

The present invention relates to a cleaning method of a dish washer that can be cleaned while preventing the washing stops due to the water level changes instantaneously changed by the pumping injection when washing the dish in a state where the water supply is completed at the set water level,

According to the present invention, when the water is completed, the water is supplied to the washing room when the dish is washed, and when the water supply is completed, the washing step is performed by driving the heater to heat the washing water to a predetermined water temperature and then driving the pump to spray the washing water to wash the washing water (34). And, during the washing step in the washing step 34 while spraying the washing water to detect the on time of the appropriate level switch, and determines whether the on time of the detected appropriate level switch is on for a predetermined time (5 seconds) or more If the proper level switch on time determination step 36 and the appropriate level switch detected in the appropriate level switch on time determination step 36 are not turned on for more than a predetermined time (5 seconds), it is determined whether the cleaning is completed. The washing process is performed until the washing is completed, and if the proper level switch detected in the proper level switch on time determination step 36 is turned on for a predetermined time (5 seconds) or more, Determination that the abnormality in the washing water is characterized in that it is made to the alarm step (38) to stop the washing and alarm the water level abnormality while draining.

Description

How to wash your dishwasher

The present invention relates to a washing method of a dishwasher, and more particularly, to a dishwasher capable of washing while preventing water from being stopped due to a change in the instantaneous water level change due to a pumping spray during dishwashing in a state where water is completed at a set water level. It relates to a washing method.

Generally, as shown in FIG. 1, the water level sensing device 10 of the dish washing machine is mounted on an outer side of the washing tank 100, and an inlet for introducing washing water to the inner side of the water level sensing device 10 ( 11) is provided, the operating section 12 is mounted on the upper side of the water level sensing device 10, the rotating section 14 is condensed by the hinge shaft 13 on the upper end of the operating interval 12 is It is mounted, the lower portion of the operation section 12 is mounted to the lifting hole 15 according to the washing water to be supplied, the upper side of the water level detection device 10 by pressing the operation section 12 by the up and down operation It is composed of an appropriate level switch (MS1) for detecting the appropriate level while releasing, and an abnormal level switch (MS2) for detecting the abnormal level.

The water level detecting device 10 configured as described above is operated so that the buckle 15 is lowered down since there is no water to be watered in the water level detecting device 10 before the water is supplied for washing, that is, when the washing machine is not operated. The liver 12 is also lowered, and thus, the upper end of the operation lever 12 and the pivoting shaft 14 hinged to the hinge shaft 13 are raised in the opposite direction and press the appropriate water level switch MS1 located at the upper side. By turning on the appropriate level switch MS1, it is indicated that no water is supplied.

When water is supplied to the washing tank 100 in order to wash in a state in which water is not supplied in this way, the washing water being supplied is introduced into the inlet 11 of the water level sensing device 10 through the washing tank 100. The washing water flowing into the inlet 11 is gradually increased to raise the float 15, the operating shaft 12 is raised by the rise of the float 15 as the hinge shaft pivoting on the upper end 14 Since it is moved downward with respect to (13), the rotation period 14 is turned off from the proper level switch (MS1), while turning off the appropriate level switch (MS1), while the abnormal level switch (MS2) located at the bottom Press and turn on the abnormal water level switch (MS2) to inform the water supply to the appropriate level, stops the water supply and then drives the pump to wash while pumping and spraying the wash water supplied.

The washing water supplied during the washing as described above is changed in the water level by the pumping force of the pump, and the generated water level change vibrates the mouth 15 of the water level sensing device 10 up and down, While the appropriate level switch MS1 and the abnormal level switch MS2 are pressed and released, the appropriate level switch MS1 is washed.

As described above, in the washing while vibrating the float 15, when the float 15 is driven off the appropriate level switch (MS1) for a predetermined time (2 seconds) during the cleaning, it is judged to be normal to proceed with the cleaning It is supposed to.

However, when the water level change occurs momentarily due to the pumping force of the pump because the ON sensing time of the titration level switch MS1, that is, the titration level sensing time of the washing water (2 seconds) is short during the washing, conventionally, the abnormality is abnormal. Judging by the water level often stops the cleaning has been a problem that can not be normal cleaning.

Nevertheless, in the related art, there is no convenient method or device for compensating for the problem caused by the instantaneous water level change caused by the pumping force of the pump.

An object of the present invention is to wash while sensing the proper water level of the wash water supplied during the dish washing, by detecting the appropriate water level detection time with a longer detection time, by changing the instantaneous water level caused by the pumping force It is also intended to be able to wash without stopping the wash.

In order to realize the above object, the present invention determines whether water supply is completed at a predetermined level during water supply, and when the water supply is completed, the washing water is heated and the heated washing water determines whether the heated water reaches a predetermined water temperature. When the water temperature reaches a predetermined water temperature, the step of washing while spraying the washing water by driving the pump and the step of sensing the on state of the appropriate level switch changed by the pumping force of the pump in the step, and the ON of the appropriate level switch in the step Determining whether the state detection time is detected for more than a predetermined time; and if the on time of the proper level switch is not detected for more than a predetermined time in the step, the cleaning is continued until the cleaning is completed, and the titration is performed. If the on time of the water level switch is detected for more than a predetermined time, an abnormality occurs in the It is determined that the characterized in that a stop, while the washed and drained to the alarm.

1 is a partial vertical cross-sectional view of a water level detection device of a conventional dishwasher

Figure 2 is a schematic control block diagram of the dishwasher used in the present invention

Figure 3 is a flow chart for the water level washing method of the present invention dishwasher

Explanation of symbols for main parts of the drawings

100; Washing tank 10; Water level sensor

11; Inlet 12; Between operation

13; Hinge axis 14; Meeting

15; Float MS1; proper water level switch

MS2; Water level switch

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic control block diagram of a dish washing machine used in the present invention, in which a driving signal input unit (A) for inputting a driving signal for a series of washing strokes and a driving signal input from the driving signal input unit (A) are provided. The microcomputer (b) which controls and proceeds by outputting a signal controlled by a predetermined program to each drive unit and proceeds to cleaning, and the water supply and drainage unit which supplies and drains water by the control signal of the microcomputer (b) ), A water level detecting unit (D) for detecting the level of washing water supplied and drained by the control signal of the microcomputer (B), and a pump driving unit (P) for pumping the washing water supplied by the control signal of the microcomputer (B). ), A heater driver (bar) for heating the washing water supplied by the control signal of the microcomputer (b) to a predetermined water temperature, and an alarm when an abnormality occurs by the control signal of the microcomputer (b). Is composed of the alarm display (G).

3 is a flow chart of the washing method of the dishwasher of the present invention, wherein the water supply step 30 of supplying water to the washing chamber at the time of dishwashing, and whether the washing water supplied from the water supply step 30 is supplied to a predetermined proper level When the water level is determined in the water supply completion determination step 31, and the water level determined in the water supply completion determination step 31 is a water supply is completed to a predetermined appropriate level, the washing water heating step 32 to drive the heater to a predetermined water temperature and The washing water temperature judging step 33 determines whether the washing water heated in the washing water heating step 32 reaches a predetermined water temperature, and if the washing water temperature reaches the predetermined water temperature in the washing water temperature judging step 33. Washing step (34) for washing while spraying the washing water by driving the, and at the appropriate water level switch to detect the on time of the appropriate level switch during the washing while spraying the washing water in the washing step (34) Determination step 35 and the appropriate level switch on time determination step of determining whether the on-time of the appropriate level switch detected in the detection of the appropriate level switch on time (35) is more than a predetermined time (5 seconds) ( 36), if the proper level switch detected in the proper level switch on time determination step 36 is not turned on for more than a predetermined time (5 seconds), it is determined whether the cleaning is completed, and the cleaning is performed until the cleaning is completed. If the proper level switch detected in the proper level switch on time determination step 36 is turned on for more than a predetermined time (5 seconds), it is determined that an abnormality has occurred in the water level of the supplied water, and the cleaning is stopped and drained. It is to be made to the alarm step 38 to alert.

Referring to the operation of the present invention configured as described above are as follows.

First, power the dishwasher to wash the dishes, and then put the dishes to be washed in the washing tank 100, and the operation signal for the series of washing administrations to be operated through the operation signal input unit (A) to the microcomputer (I ), The microcomputer (b) starts the washing operation according to a predetermined program with respect to the input operation signal. In other words, the microcomputer (b) goes to the water supply step 30 and supplies the water supply and drainage unit (C). ) To supply water to the washing tank 100, the water level is increased through the inlet 11 of the water level sensing device 10 to raise the float 15, and then the water supply completion determination step 31 Go to the) to control the water level detection unit (D) to determine whether the water supply is completed at the appropriate level through the appropriate level switch (MS1) of the water level detection device 10, at this time the water level is low If the water level switch MS1 is not turned off, that is, if the water level has not reached the proper level, water is continuously supplied to raise the mouth 15 of the level sensing device 10 and then titrate it through the rotation period 14. The water supply is completed while the water level switch MS1 is turned off.

When the water supply is completed in the water supply completion determination step 31, the microcomputer (b) goes to the washing water heating step 32 to control the heater driving unit (bar) to heat the water supplied washing water to a predetermined water temperature, and then Going to the washing water temperature determination step 33, it is determined whether the washing water to be supplied reaches a predetermined water temperature. At this time, if the washing water temperature does not reach the predetermined water temperature (65 ° C.), the heater driving unit (bar) is continuously controlled. When the washing water is continuously heated and the washing water supplied in the washing water temperature judging step 33 reaches a predetermined water temperature, the microcomputer (b) goes to the washing step 34 and controls the pump driving unit (e) to pump No water) is used to pump the wash water to wash dishes.

The washing water supplied to the washing tank 100 during the washing while driving the pump as described above is washed while the water level is changed by the pumping force, the water level sensing device 10 is appropriate level by the water level change Cleaning is performed while the switch MS1 is turned on and off.

In this way, while performing the cleaning while turning on and off the appropriate level switch MS1 of the water level sensing device 10, the microcomputer (b) goes to the proper level switch on time sensing step 35 and changes the water level sensing section (D). By controlling the water level sensing device 10 to detect the on state of the appropriate level switch (MS1), that is, below the appropriate level, and then go to the appropriate level switch on time determination step 36, the level detecting unit (D). It is determined whether the on state of the appropriate level switch (MS1) has elapsed for a predetermined time (5 seconds) or more through the water level sensing device 10, the determination result is that the on state of the appropriate level switch (MS1) If it has not elapsed for more than a predetermined time (5 seconds), the microcomputer (b) determines that the washing water to be maintained in the proper water level and proceeds to the cleaning completion judging step 37, the predetermined predetermined washing time is completed The washing process is performed until the washing is completed while judging, and if the on state of the proper water level switch MS1 has elapsed for a predetermined time (5 seconds) or more in the proper water level switch on time judging step 36. In the microcomputer (b), the water level of the washing water being supplied is insufficient due to leakage or the abnormality of the water level sensing device 10, and it goes to the alarm stage 38 to control the pump driving part (e) to stop the washing and By controlling the drain drive unit (c) to drain the washing water supplied, and to control the alarm display unit (g) to alert the user that the lack of water or the water level detection device 10 is abnormal.

As described above, in the present invention, the water level supplied by the pumping force of the pump during the washing while pumping in the state of completion of water supply to a predetermined level during dish washing is a predetermined time for the on-off operation (sufficient water supply) of the water level switch. If the on-going operation of the proper level switch is maintained for more than a predetermined time, it is determined that there is a leak or an abnormality in the water level detection device. By warning while stopping and draining while washing, it is to provide an effect that can be washed while preventing the problem that the washing is stopped due to the lack of washing water due to the instantaneous change of the washing level.

Claims (1)

When washing the water in the dishwashing room, judging whether the water supply is complete, if the water supply is completed, the washing step 34 to drive the heater to the washing water to a predetermined water temperature and then drive the pump to wash while spraying the washing water, and Appropriate water level switch to detect the on time of the appropriate level switch during the washing while spraying the washing water in the washing step 34, and to determine whether the detected on-time of the appropriate level switch is more than a predetermined time (5 seconds) If the on-time judging step 36 and the appropriate level switch detected in the on-time judging step 36 have not been turned on for more than a predetermined time (5 seconds), it is determined whether the cleaning is completed and the cleaning is completed. Proceeds with washing until the proper level switch on time determination step 36 detects that the appropriate switch is turned on for more than a predetermined time (5 seconds). The washing method of the dishwasher, characterized in that the alarm stop (38) to stop the cleaning and determine the abnormality occurred while determining that the abnormality occurred.

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