KR100207231B1 - A dry method of dishwasher - Google Patents

Abstract

The present invention is a drying method of a dish washer to heat the temperature of the washing chamber with a heater that is heated by heating the heater during the drying stroke during a series of dish washing operations and to dry the dishes while circulating the temperature of the heated washing chamber. Regarding,

The present invention heats by applying a driving voltage to the heater during the drying operation, and determines whether the heating temperature of the heater has reached a predetermined heating temperature and continues if the heating temperature of the heater does not reach the predetermined heating temperature. When the heater is heated, and when the heating temperature of the heater reaches a predetermined temperature, the heater is heated while applying a short driving voltage, and the temperature of the washing chamber raised by the heated heater is sensed to detect the detected temperature. If the temperature of the washing chamber does not reach a predetermined temperature, the heater is heated while applying a short driving voltage. If the detected temperature of the washing chamber reaches the predetermined temperature, the heater is turned off and the blower fan is heated. Characterized in that it is made to dry the dishes to the temperature of the washing room.

Description

How to dry your dishwasher

The present invention relates to a drying method of a dishwasher, and more particularly, to heat the temperature of the washing chamber with a heater that is heated by heating and driving a heater during a drying operation during a series of dish washing operations. It relates to a drying method of the dishwasher to be dried.

In general, the dishwasher used in our homes are dried when a series of rinsing cycles of rinsing are completed. At this time, the drying method supplies water before drying and the predetermined temperature (75 ℃) is supplied to the heater using a heater. And heated the dish by spraying the heated wash water on the dish, and draining the heated wash water, and then sucking cold outside air with a blower fan located at the rear to blow the heated dish into the heated dish to remove the heated dish. It is intended to be dried by latent heat.

Thus, the conventional method of drying the dishes is watering and heating the heated wash water to a predetermined temperature with a heater and heating the dishes with the heated wash water, and then the dishes are dried by the latent heat of the heated dishes, washing water In addition to the consumption of water according to the water supply of the heater, the power consumption of the heater according to the heating of the washing water is increased, the drying time according to the heating of the washing water is long, so that the overall washing time is longer, and also the outside air to the blower fan When there is a lot of dishes to be dried in the washing chamber when the suction is dried, the predetermined blowing time is shortened compared to the dishes to be dried and the blowing is stopped while the predetermined blowing time is completed before the dishes are dried. Is generated, water is left in the dishes due to the temperature difference in the washing room, and drying as desired Not obtained and the, in some cases, have been a problem that a waste of power is the predetermined period of blowing time is set due to the longer probes even though drying is complete and continues to be driven to blow air blowing fan unnecessary compared with the expression amount.

An object of the present invention is to heat the heater to a predetermined temperature during the drying stroke in a series of washing strokes, and to heat until the air in the washing chamber reaches a predetermined predetermined air temperature, the temperature of the heated air When the predetermined temperature is reached, the blower is driven to circulate the heated air to dry the dishes, thereby reducing the power consumption of the washing water and the heater according to the washing water and reducing the drying time. have.

In order to realize the above object, the present invention applies a driving voltage to a heater during a drying operation and heats the same. However, it is determined whether the heating temperature of the heater reaches a predetermined heating temperature and the heating temperature of the heater reaches a predetermined temperature. If not, the heater is continuously heated, and if the heating temperature of the heater reaches a predetermined temperature, the heater is heated while the driving voltage of the heater is shortly applied, and the temperature of the washing chamber raised by the heated heater is sensed. If the detected temperature of the washing chamber does not reach a predetermined temperature, the heater is heated while applying a short driving voltage. If the detected temperature of the washing chamber reaches a predetermined temperature, the heater is turned off and the blower fan is heated. It is characterized in that it is made to dry the dishes to the temperature of the heated washing chamber while driving.

1 is a schematic longitudinal cross-sectional view of the present invention dishwasher

Figure 2 is a control block diagram for the drying method of the present invention dishwasher

Figure 3a is a drive waveform diagram of the heater drive unit of the present invention dishwasher, the output waveform diagram of the drive voltage during the initial heater drive

3B is a driving waveform diagram of a heater driving unit of the dish washing machine according to the present invention, and output waveform diagram of the driving voltage when the heater is driven when the heating temperature of the heater reaches a predetermined temperature.

Figure 4 is a flow chart for the drying method of the present invention dishwasher

Explanation of symbols for main parts of the drawings

1; washing room 2; Spray nozzle

3; Heater 4; Pump

5; Blower fan 6; Cleaning room temperature sensor

7; Heater temperature sensor

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

1 is a schematic longitudinal cross-sectional view of the dish washing machine of the present invention, the washing chamber 1 to wash the dishes to be washed, and sprayed to spray the washing water while rotating by the pumping force in the inner lower center of the washing chamber (1) The nozzle (2), the heater (3) for heating the washing water supplied to the lower side of one side of the injection nozzle (2), and the washing water collected in the lower one side of the washing chamber (1) by the pumping force by the suction nozzle (2) to discharge the pump (4), the blowing fan (5) for sucking the outside air to the upper one side wall of the washing chamber (1), and to sense the temperature of the washing chamber heated in the washing chamber (1) The washing chamber temperature sensor 6 and the heater temperature sensor 7 for detecting the heating temperature of the heater 3 are mounted on one side of the heater 3.

FIG. 2 is a control block diagram of a drying method of a dish washing machine of the present invention, in which an operation signal input unit (A) for inputting operation signals for a series of washing strokes and an operation signal input from the operation signal input unit (A) A microcomputer (b) for controlling and outputting a signal controlled by a predetermined program, a water supply driver (c) for supplying washing water according to the control signal of the microcomputer (b), and a water supply from the water supply driver (c) And a water level detecting unit (D) for detecting the level of the washing water being drained, a pump driving unit (E) for pumping the washing water supplied by the control signal of the microcomputer (B) and injecting the water into the injection nozzle, and the water supply driving unit (C). Heater drive unit (bar) for heating the washing water supplied from the heater to the heat of the heater, the washing room temperature detection unit (g) for detecting the washing room temperature according to the control signal of the microcomputer (b), and the control of the microcomputer (b) God And the air blowing fan driving unit (A) to suck the outside air and driven to rotate, to the hayeoseo composed of a heater temperature detecting part (I) for detecting the heating temperature of the heater by the control signal of the microprocessor (B).

Figure 3a is a drive waveform diagram of the heater drive unit of the dishwasher of the present invention, which shows the output waveform of the drive voltage during the initial heater driving, Figure 3b is a drive waveform diagram of the heater drive unit of the dishwasher of the present invention, the heating temperature of the heater Is the output waveform of the heater driver when the temperature reaches the preset temperature.

Figure 4 is a flow chart for the drying method of the dishwasher of the present invention, the first heater heating to apply a normal driving voltage to the heater during the drying stroke is completed by the rinse stroke during the washing, rinsing, drying a series of washing strokes Step 40, the heater heating temperature detection step 41 for detecting the temperature of the heater heated in the first heater heating step 40, and the heater heating temperature detected in the heater heating temperature detection step 41 The heater heating temperature judging step 42 determines whether or not the predetermined heater heating temperature is higher than the predetermined heater heating temperature, and if the heater temperature heated in the heater heating temperature judging step 42 is not higher than or equal to the predetermined heater heating temperature, the heater is continued. And heating to the heater heated in the second heater heating step 43 when the heater temperature is higher than a predetermined heater heating temperature. Is the washing room temperature sensing step 44 for detecting the temperature of the rising washing room and the temperature of the washing room detected in the washing room temperature detecting step 44 is greater than or equal to a predetermined washing room temperature (72 ° C.). The second heater heating step if the washing room temperature determination step 45 of determining and determining the temperature of the washing room detected in the washing room temperature determination step 45 is not higher than a predetermined washing room temperature (72 ° C.). A heater off step 46 of turning off the heater to stop heating when the detected washing chamber temperature is equal to or greater than a predetermined washing chamber temperature (72 ° C.), and the heater is repeated from (43). In the off step 46, the drying step 47 for driving and blowing the outside air by driving the blower fan in the state of turning off the heater, and whether the drying time is completed in the drying state in the drying step 47 If the drying time is not complete, continue Second heater drying and repeated from the heating step 43, to the completion of drying is determined to consist of a step of completing the drying is finished, the drying time (48).

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

First, the dish to be washed is put in the washing room (1), the power is supplied to the dishwasher, and the driving signal input to the microcomputer (B) through the driving signal input unit (A), the microcomputer (B) In the washing operation signal is controlled by a predetermined predetermined program and outputs the controlled signal to the water supply driver (C) to supply water, while supplying water while detecting the water level supplied through the water level detection unit (D), When the water supply completes the water supply to a predetermined level, the heater driving unit (bar) is controlled to heat the washing water supplied by the heater 3 to a predetermined water temperature and to control the pump driving unit (e) to heat the pump 4. The pumped washing water is pumped to the spray nozzle 2 to perform the washing. When the washing is completed, the water is rinsed to a rinse stroke (not shown). Proceed.

Subsequently, when the rinsing is completed a predetermined number of times, the drying stroke is performed by a predetermined program in the microcomputer (B). That is, when the drying stroke starts, the first heater heating step is performed in the microcomputer (B). 40, the heater 3 is heated by applying a voltage as shown in FIG. 3A to the heater 3 through the heater driver (bar), and then the microcomputer (b) goes to the heater heating temperature sensing step 41 and the heater. The temperature sensor 7 controls the heater temperature sensor 7 to sense the temperature of the heated heater.

In the state of sensing the temperature of the heater to be heated as described above, the microcomputer (b) goes to the heater heating temperature determination step 42 to determine whether the temperature of the detected heater is above a predetermined heating temperature (75 ° C.). In this case, if the detected temperature of the heater is not higher than a predetermined heating temperature (75 ° C.), go to the first heater heating step 40 and continue to heat the heater 3, whereas If the detected heater temperature is equal to or greater than a predetermined heating temperature (75 ° C.), the microcomputer (b) heats the second heater to prevent overheating of the heater 3 and to prevent damage to the washing chamber 1. 3, the heater 3 is heated by applying a short on-driving voltage as shown in FIG. 3B. Then, in the microcomputer B, the washing chamber raised by the heating drive of the heater 3 ( 3) washing to sense the temperature of Going to the room temperature monitoring step 44, the washing room temperature sensing unit 4 controls the washing room temperature sensor 6 to sense the temperature of the washing room 3 that is raised.

As described above, in the state of sensing the washing chamber temperature, the microcomputer (b) goes to the washing chamber temperature judging step 45 to determine whether the detected washing chamber temperature is above a predetermined washing chamber temperature (72 ° C.). In this case, if the determined temperature of the washing chamber is not equal to or greater than the predetermined washing chamber temperature (72 ° C.), go to the second heater heating step 43 and continue to heat the heater 3, while If the detected temperature of the washing chamber is higher than the predetermined predetermined washing chamber temperature (72 ° C.), the microcomputer (b) goes to the heater-off step 46 to prevent overheating of the heater and damage of the washing chamber. (F) turn off the heater (3) to stop the heating of the heater and go to the drying step (47) to control the blower fan (5) through the blower fan drive unit (h) to inhale outside air and wash room ( 1) The temperature of the heated washing room while blowing inside When the road tableware is to be dried, at this time, the microcomputer (b) goes to the drying completion determination step 48 to determine whether a predetermined predetermined drying time is completed. At this time, if the predetermined drying time is not completed In the micom (b), the second heater is repeatedly performed from the heating step 43 until the drying time is completed. If the drying time is completed, the microcomputer (b) completes the drying.

As described above, the present invention heats by applying a driving voltage to the heater during the drying operation, and heating while determining whether the heating temperature of the heater reaches a predetermined heating temperature, and the heating temperature of the heater is predetermined. When the temperature is reached, the heater is heated while applying a short driving voltage, and the temperature of the washing chamber raised by the heated heater is sensed to determine whether the detected washing chamber temperature reaches a predetermined temperature. When the detected temperature of the washing chamber reaches a predetermined temperature, the dishwasher is dried at the temperature of the heated washing chamber by turning off the heater and driving the blower fan, thereby heating waste water and washing water by adding washing water to dry the dish. In addition to the waste of heater power, the drying time is prevented from being prolonged. It will be done.

Claims (1)

The heater heating temperature judging step (42) determining whether the detected heater heating temperature is higher than a predetermined heater heating temperature by applying a normal driving voltage to the heater during the drying stroke and applying a normal driving voltage to the heater during the cleaning operation. And a second heater heating step 43 for heating while driving the heater briefly if the heater temperature heated in the heater heating temperature determining step 42 is equal to or greater than a predetermined heater heating temperature, and the second heater heating step Detects the temperature of the washing chamber rising by the heater heated at 43, and determines whether the detected washing chamber temperature is higher than or equal to a predetermined predetermined washing chamber temperature (72 ° C.). If the predetermined washing room temperature (72 ° C) or more is repeated from the second heater heating step 43, while the detected temperature of the washing chamber is more than the predetermined washing room temperature (72 ° C). Back side A drying step 47 for turning off the rotor and driving the blower fan while inhaling the outside air, and a second heater heating step 43 until the drying time is completed in a drying state in the drying step 47. Drying method of the dishwasher, characterized in that the drying is completed by the completion step (48) to complete the drying while performing.

Images