KR20070059392A - Dry time controlling method of a dishwasher - Google Patents

Abstract

A drying time control method of a dishwasher is provided to dry tableware in the dishwasher optimally by setting drying time optimally according to the rinsing course, considering heat remaining in the dishwasher by rinsing tableware. A rinsing course is performed(S10), and temperature of a washing tub is measured before draining water(S20). Temperature of the washing tub is compared with the initial drying temperature set according to each rinsing course(S30), and drying time is optimally set according to each course(S40). The operation cycle of a heater is set according to rinsing temperature of each course(S50), and water is drained(S60). Tableware is dried(S70), and a blower fan is driven by a microcomputer(S80). Tableware is dried by periodically turning on and off the heater while driving the blower fan for the predetermined time(S90). The drying course is finished by turning off the blower fan and the heater if a lapse of drying time is conformed(S100,S110).

Description

DRY TIME CONTROLLING METHOD OF A DISHWASHER

1 is a flowchart showing a method of controlling a dishwasher drying time according to an embodiment of the present invention.

The present invention relates to a method for controlling the drying time of a dishwasher, and more particularly, to set an optimal drying time by setting a time required for each rinsing course in consideration of the heat remaining inside the dishwasher by performing a rinsing stroke. It relates to a drying time control method of the dishwasher.

The washing process of the dishwasher proceeds in the order of washing stroke-> rinsing stroke-> drying stroke. The drying stroke finishes washing the dish by removing moisture remaining on the surface of the dish after the rinsing stroke.

As an example of the drying process of a typical dishwasher, after the rinsing cycle is completed, the washing water is supplied, the temperature inside the washing tank is sensed, and the washing water is heated to the set temperature required for drying. The method of raising the temperature to allow the water remaining on the surface of the dish to evaporate naturally into the space inside the washing tank is used. To this end, a discharge fan for discharging the water inside the washing tank is operated together.

However, such a conventional method takes a long time to heat the temperature of the cold water to a temperature that can supply the heat required for drying when the temperature of the supplied washing water is low, for example, when cold water is supplied as the washing water in winter. There is a disadvantage that the heater driving time is increased. In particular, this heated water is discharged through the drainage stroke has a problem of reducing the energy efficiency.

Another example of the drying method of the dishwasher is a method of setting a constant drying time irrespective of the temperature inside the dishwasher, and performing drying by convection through a blowing fan while turning the heater on and off at regular intervals. However, this method has a problem that a difference in drying performance occurs in that the drying time is set constant. That is, in the dishwasher, the rinsing temperature for each course is different, but despite the time and temperature required for drying, there is a problem in that the drying performance and the heater driving cycle are inferior in drying performance.

The present invention has been made to solve the above problems, an object of the present invention is to optimize the time required for drying the rinse course tableware in consideration of the heat remaining inside the dishwasher by performing the rinse stroke It is to provide a drying time control method of the dishwasher that can set the drying time.

In order to achieve the above object, according to the drying time control method of the dishwasher according to the embodiment of the present invention, after the rinsing stroke is completed, before the drainage stroke is made, the drying time is set by detecting the temperature inside the washing tank After the step is performed, and the drying time setting is completed, the drying stroke is started after the water is discharged through the drain stroke.

Wherein the setting of the drying time, the step of sensing the temperature inside the washing tank; And comparing the detected internal temperature of the washing tank with a set basic drying temperature for each set rinsing course, and then setting a drying time required for drying through the comparison, and setting the drying time. After that, the step of setting the operation cycle of the heater is performed, the drainage stroke is started, and when the drainage stroke is completed, the drying administration is performed to dry the dishes according to the set drying time and the heater operation cycle.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. As a result, other objects and features of the present invention will become more apparent.

1 is a flowchart illustrating a drying time control method of a dish washing machine according to an embodiment of the present invention.

As shown in Figure 1, the drying time control method of the dish washer according to an embodiment of the present invention after the rinsing stroke (S10), before the drainage stroke to detect the temperature inside the washing tank for detecting the temperature inside the washing tank It includes a step (S20).

The rinsing stroke of the dish washing machine is typically performed to supply the washing water heated to a high temperature into the washing tank to rinse the dishes in the washing tank. As the rinsing is performed as the heated washing water is sprayed into the dishes and the washing tank, the washing tank forms a kind of heat chamber, and the dishes, the washing tank inner surface, and the like are heated to a constant temperature.

Therefore, the temperature sensing step (S20) of detecting the temperature inside the washing tank after the rinsing cycle is ended indirectly measures how much heat can be removed by natural evaporation of the water remaining in the dishes in the washing tank. .

When the temperature inside the washing tank is sensed in the washing tank internal temperature sensing step (S20), a step of comparing the measured washing tank inner temperature with the initial drying temperature set according to each rinsing course is performed (S30). In recent years, dishwashers have been extended beyond conventional dishwashing to sterilization functions or special purpose washing machines, such as washing bottles or cleaning medical devices. The temperature of the steam is different. Therefore, according to the present invention is to perform the step of comparing the initial drying temperature set according to the course-specific rinsing with the temperature inside the washing tank.

Subsequently, a drying time setting step of setting an optimal drying time for each course through a comparison between the temperature inside the washing tank and the set drying temperature is performed (S40). That is, if the temperature inside the washing tank is higher than the set initial drying temperature, the drying time will be shorter than the basic drying time set for each rinsing course. The time will be set longer than the default drying time set for each rinse course.

In addition, since the rinsing temperature for each course is different and the heat required for the temperature is different, a heater operation cycle setting step S50 is performed in which an operation cycle of the heater is set accordingly. For example, a suitable heater operation cycle setting is made such as t1 (5 seconds) ON t2 (55 seconds) OFF and the like.

After this setting is made, a drainage stroke is made (S60), and the drying stroke is started (S70).

When the drying stroke is started (S70), the microcomputer starts driving the blower fan (S80). The high temperature and wet steam inside the washing tank is forcibly discharged to the outside by the driving fan to improve the dryness.

In addition, while the blower fan is driven and the heater is periodically turned on and off according to the setting made in the heater operation cycle setting step, for example, t1 on and t2 off are repeatedly performed, drying is performed for a set drying time (S90). ).

When the drying time is confirmed (S100), the blowing fan and the heater is turned off and the drying stroke is completed (S110).

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

As described above, according to the drying time control method of the dishwasher according to the embodiment of the present invention, the heat remaining in the dishwasher after setting the drying time of the dishwasher after the rinsing stroke is performed, that is, In the process of rinsing, the drying time including the drying temperature is set in consideration of the heat that can naturally evaporate the moisture remaining in the dishes by the heat accumulated in the washing tank, and the drying stroke is started after the draining stroke is performed. As a result, according to the present invention, the drying time can be set to an optimal condition in which the actual drying can be finished, thereby enabling the drying performance to be improved.

Claims (2)

After the rinse stroke is completed, before the drain stroke is made, The step of setting the drying time by sensing the temperature inside the washing tank is performed, After the setting of the drying time is completed, the drying time control method of the dishwasher, characterized in that the drying stroke is started after the water is discharged through the drain stroke. The method of claim 1, wherein the setting of the drying time comprises: Sensing a temperature inside the washing tank; And After performing the step of comparing the detected temperature inside the washing tank with the set default drying temperature for each set rinsing course, Performing a step of setting a drying time required for drying through the comparison; After the step of setting the drying time is performed, The drying time of the dishwasher is performed by setting the operation cycle of the heater, starting the drainage stroke, and when the drainage stroke is completed, a drying stroke for drying the dishes according to the set drying time and the heater operation cycle is performed. Control method.

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