KR102456612B1 - Dish drying method - Google Patents

Abstract

The present invention provides the steps of measuring the current temperature inside the dish dryer, determining whether the temperature state is saturated based on the current measurement temperature and the previous measurement temperature, and drying the dishes when the saturation state continues for more than the saturation state maintenance time It relates to a dish drying method comprising the step of terminating.

Description

How to dry dishes {DISH DRYING METHOD}

The present invention relates to a dish drying method, and more particularly, to a dish drying method capable of performing dish drying optimized for a drying mode in consideration of a changing external environment and an internal dish load amount.

Dry the dishes using a dish dryer. The dish dryer may remove moisture or humidity from the dishes and further provide a sterilization function. In a dish dryer, a temperature and humidity sensor is generally used to determine the completion of drying. When a previously known dish dryer reaches a set temperature and/or a set humidity, it is determined that dish drying is complete and the dish drying function is terminated.

A general temperature/humidity sensor applied to a dish dryer belonging to a relatively inexpensive household appliance product family has a measurement error. The humidity measurement error range of the general temperature and humidity sensor is approximately +/- 3%, so it is virtually impossible to determine whether it is dry by humidity measurement. On the other hand, the temperature measurement error is about +/- 1 degree, which is more precise than humidity, so it is possible to determine the dry state through temperature measurement.

It is practically difficult to judge the completion of drying in the dish dryer only with the set temperature and humidity, but the change in temperature and humidity varies according to the amount of dishes loaded in the dish dryer, and complete drying is judged according to the environment such as the temperature and installation location outside the dryer. Conditions may vary.

The dish dryer may have various modes. For example, the dish dryer has a standard mode and a sleep mode, and in the standard mode, it dries the loaded dishes with maximum drying performance, and in the sleep mode, it dries the dishes loaded for a long time with the drying performance of low speed and low noise. The dish dryer also needs to determine the completion of drying corresponding to the operating characteristics of the sleep mode and the standard mode.

As such, there is a need for a dish drying method capable of accurately determining the completion of dish drying under various internal and external environments.

The present invention has been devised to solve the above-described problems, and an object of the present invention is to provide a dish drying method capable of determining the completion of dish drying according to various external environments and an internal amount of dish drying.

Another object of the present invention is to provide a dish drying method capable of determining completion of dish drying by using temperature characteristics according to various external environments and internal dish drying amount.

Another object of the present invention is to provide a dish drying method capable of determining completion of dish drying in accordance with control characteristics of each drying mode and a control environment in various dish drying modes.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. will be able

According to an aspect of the present invention, a method for drying dishes includes measuring a current temperature inside the dish dryer; determining whether the temperature state is saturated based on the current measured temperature and the previous measured temperature; and terminating the dish drying operation when the saturation state continues for more than the saturation state maintenance time.

In the dish drying method, the step of determining whether the temperature state is in the saturated state is a threshold difference in which the periodically measured current measured temperature and the previous measured temperature are the same or a difference between the current measured temperature and the previous measured temperature is set. The temperature state is determined to be saturated.

In the above-described dish drying method, the method further comprising: determining whether a dish drying operation time has reached a target maximum operation time when the temperature state is a temperature increase state, wherein the dish drying operation time is set to the target maximum operation time When the time is reached, the dish drying operation is also ended.

In the dish drying method described above, before measuring the current temperature inside the dish dryer, measuring an initial temperature inside the dish dryer; and setting a target end temperature based on the initial temperature; and after measuring the current temperature inside the dish dryer, determining whether the current measured temperature has reached the target end temperature; and determining whether the target humidity has been reached when the target end temperature is reached, further comprising terminating the dish drying operation when the target humidity is reached, wherein the target end temperature is set differently according to the initial temperature .

In addition, a dish drying method according to an aspect of the present invention includes the steps of determining an operation mode; performing and terminating the dish drying operation based on the temperature currently measured in the determined operation mode in the first mode; and performing and terminating the dish drying operation based on the target maximum end time calculated from the temperature initially measured in the determined operation mode in the second mode.

In the dish drying method, the first mode is a mode in which a fan and a heater provided in the dish dryer are performed with first performance, and the second mode is a second mode in which the fan and the heater have lower performance than the first performance. This is a performance mode.

In the dish drying method, performing and terminating the dish drying operation in the first mode includes: measuring a current temperature inside the dish dryer; determining whether the temperature state is saturated based on the current measured temperature and the previous measured temperature; and terminating the dish drying operation when the saturation state continues for more than the saturation state maintenance time.

In the dish drying method, the step of determining whether the temperature state is in the saturated state is a threshold difference in which the periodically measured current measured temperature and the previous measured temperature are the same or a difference between the current measured temperature and the previous measured temperature is set. The temperature state is determined to be saturated.

In the dish drying method, performing and terminating the dish drying operation in the second mode includes: setting a target maximum operation time; calculating a temperature rise value during the initial measurement time; determining an additional operation time corresponding to the temperature rise value and changing the set target maximum operation time by adding the additional operation time to the set target maximum operation time; determining whether the dish drying operation time has reached the changed target maximum operation time; and terminating the dish drying operation when the dish drying operation time reaches the changed target maximum operation time.

In the dish drying method, determining the additional operation time corresponding to the temperature increase and changing the set target maximum operation time provides an additional operation time that is inversely proportional to the temperature increase.

In the dish drying method, after changing the set target maximum operation time, measuring a current humidity inside the dish dryer; and determining whether the humidity state is a lower saturation state based on the current measured humidity and the previously measured humidity; further comprising, when the lower saturation state lasts longer than the saturation state maintaining time, the dish drying operation is also terminated.

In the dish drying method, the step of determining whether the humidity state is a downward saturation state is a threshold in which the periodically measured current measured humidity and the previously measured humidity are the same or a difference between the current measured humidity and the previously measured humidity is set When the vehicle is within the vehicle, the humidity state is determined as a downward saturation state.

The dish drying method according to the present invention as described above has an effect of determining the completion of dish drying according to various external environments and internal dish loading amounts.

In addition, the dish drying method according to the present invention as described above has an effect of determining the completion of dish drying by using temperature characteristics according to various external environments and internal dish loading amounts.

In addition, the dish drying method according to the present invention as described above has an effect of determining the completion of dish drying in accordance with the control characteristics of each drying mode and the control environment in various dish drying modes.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those of ordinary skill in the art from the following description. will be.

1 is a view showing an exemplary form of a dish dryer according to the present invention.
2 is a diagram illustrating a control flow of an operation of drying dishes in a first mode according to determination of an operation mode according to a user setting.
3 is a diagram illustrating a control flow of a dish drying operation in a second mode.

The above-described objects, features and advantages will become more clear through the detailed description described below in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains can understand the technical spirit of the present invention. can be easily implemented. In addition, in the description of the present invention, when it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing an exemplary form of a dish dryer 100 according to the present invention.

According to FIG. 1 , a dish dryer 100 includes a sensor 110 , a heater and a fan connected to a hot air vent 120 , a drying rack 140 , an opening/closing door 150 , a drip tray 160 , an operation unit 180 and a main body ( 190) is included. According to a design example, the dish dryer 100 may further include other components not shown. Alternatively, the dish dryer 100 may be configured by omitting some blocks of FIG. 1 .

Referring to the configuration of the dish dryer 100 with reference to FIG. 1 , the sensor 110 measures the temperature and/or humidity inside the dish dryer 100 . The sensor 110 includes a temperature sensor and/or a humidity sensor to measure the temperature and/or humidity inside the dish dryer 100 . The temperature and humidity sensor 110 included in the dish dryer 100 is a sensor applicable to low-cost home appliances, and has a humidity measurement error range of about +/- 3% and a temperature measurement error range of about +/- 1 degree. has an error of

The sensor 110 is installed on the bottom surface of the center or a specific location inside the dish dryer 100 to measure the internal temperature and/or humidity during the dish drying operation while the opening/closing door 150 is closed, and the measured temperature and / or an analog signal or digital signal representing humidity is output to the processor of the main body 190 .

The heater generates heat to increase the temperature inside the dish dryer 100 . The heater includes a known heat generating means for generating heat using electricity, and generates heat or stops generating heat according to a heater control signal received from the processor of the body 190 . The heater may generate heat corresponding to an analog current or voltage level or generate heat corresponding to a pulse width modulation (PWM) signal.

The heater operates to generate heat with at least two performances (eg, the amount of heat per unit time) according to a heater control signal from the processor. For example, the heater may generate heat at 100% performance according to a received specific heater control signal, or may generate a specified level of performance (eg, 30%, etc.) according to another heater control signal. The heater may be installed on the bottom surface or in the main body of the dish dryer 100 to generate heat.

The fan exhausts the heat generated by the heater to the outside. The fan may be coupled to the heater to discharge heat from the heater to the upper side of the dish dryer 100 through a rotating fan provided with the fan. The fan may receive the heater control signal or the fan control signal from the processor, and may adjust the rotation speed of the rotating fan according to the received control signal.

The fan may operate with at least two types of performance according to a fan (heater) control signal from the processor. For example, the fan rotates a rotating fan at high speed with 100% performance according to a specific control signal received to supply the heat generated by the heater, or at a specified level of performance (for example, 30%, etc.) according to another control signal. The fan can be rotated at a low speed at a corresponding rotation speed.

The drying table 140 is a mechanism for placing and fixing dishes to be dried in the dish dryer 100 . The drying rack 140 is configured in one or two stages and may be fixed or separated in the dish dryer 100 . Various types of dishes are disposed on the drying rack 140 , and according to the operation of the dish dryer 100 , the dishes may be dried inside the dish dryer 100 .

The opening/closing door 150 is a mechanism that can open or close the dish dryer 100 (the drying rack 140 of the dish dryer 100) in order to place the dishes in the drying rack 140 or take out the dishes. The opening/closing door 150 may include a handle to open or close the inside of the dish dryer 100 through the handle. The opening/closing door 150 includes a ventilation hole 151 to discharge heat and wind from the inside of the dish dryer 100 to the outside of the dish dryer 100 .

The drip tray 160 is a device that collects water from dishes in the drying rack 140 . Moisture, water, etc. of the dishes may be collected in the drip tray 160 .

The manipulation unit 180 receives an input from a user of the dish dryer 100 . The operation unit 180 receives various user inputs including a push button, a touch button, a touch panel, a switch, and the like. The operation unit 180 may receive a mode selection input, a dish drying start input, a power on/off input, and the like, and output the received input signal to the processor of the main body 190 . The manipulation unit 180 may receive a user input by having a plurality of touch buttons on the front side thereof.

The main body 190 includes a control board that controls the operation of the dish dryer 100 to control the operation of the dish dryer 100 . The control board of the main body 190 controls the dish dryer 100 according to an input signal received from the manipulation unit 180, including a processor, a memory, and the like to perform a dish drying function in a specific mode.

The memory is configured to include non-volatile memory and/or volatile memory to store programs and data executed by the processor. The memory sets an operation mode of the dish dryer 100 according to a user input and stores a dish drying control program for drying internal dishes according to the set operation mode.

The processor controls the dish dryer 100 . The processor is connected to the sensor 110, the manipulation unit 180, the heater, the fan, etc. to control the heater and the fan according to the operation mode determined according to the user input through the execution of the program in the memory, and the measured value from the sensor 110 The dish drying operation is performed using the data and is terminated.

The processor may control the dish dryer 100 by executing a dish drying control program in the memory, and may represent or be configured with a microcomputer, MPU, CPU, central processing unit, and the like.

A control flow for controlling the dish dryer 100 by the processor through the dish drying control program will be described in detail with reference to FIGS. 2 and 3 .

2 is a diagram illustrating a control flow of an operation of drying dishes in a first mode according to determination of an operation mode according to a user setting.

First, a user sets an operation mode through the operation unit 180 and inputs a dish drying start command. The user sets the first mode or the second mode through the touch button of the operation unit 180 and presses the dish drying start button in the set mode, and the dish dryer 100 (processor of) starts the dish operation ( S100 ).

The first mode is a mode for performing the fan and heater provided in the dish dryer 100 with a specified specific performance (hereinafter referred to as 'first performance'), and the second mode is a mode for performing the fan and heater with a specific performance lower than the first performance. (hereinafter referred to as 'second performance').

For example, the first mode is a mode for operating the fan and heater with a first performance to generate 100% or maximum heat and to rotate the fan by 100% or maximum, and the second mode is a mode for operating the fan and heater more than the first performance. A mode for operating with a second performance that heats at a low specified % (eg, 30%, etc.) and rotates at a specified % (eg, 30%, etc.).

The first mode may be a standard mode for high-speed drying, and the second mode may be a sleep mode (night mode) for power saving and low noise. Normal mode generally operates preferably during the day and sleep mode preferably operates at night.

According to the input of the dish drying start command according to the user's input, first, the dish dryer 100 (the processor of) measures the initial temperature (S101) and determines the set operation mode (S103). The processor may measure an initial temperature from a sensing signal received from the sensor 110 and store the measured initial temperature data in a memory. Here, the order of the operation mode determination process and the initial temperature measurement process may be changed.

When the set operation mode is the first mode, the dish dryer 100 (processor of the dish dryer 100) may perform the dish drying operation based on the measured temperature, etc. and end the dish drying operation (S111 to S137).

When the set operation mode is the second mode, the dish dryer 100 (the processor of) may perform and end the dish drying operation based on the target maximum end time calculated from the initially measured temperature (S151 to S177).

Looking at the dish drying operation in the first mode in detail, the dish dryer 100 (the processor of) sets various target variables. The dish dryer 100 (the processor of) may set a target end temperature and a target humidity. The processor sets the target humidity inside the dish dryer 100 and sets the target end temperature based on the initial temperature (S111).

The target humidity and the target end temperature may be set based on information obtained through an experiment under various environments outside the dish dryer 100 . At least, the target end temperature is set based on the initial temperature, a relatively low target end temperature is set when the initial temperature is a low temperature, and a relatively high target end temperature is set when the initial temperature is a high temperature. The target end temperature reflects the characteristics of the initial external temperature (environmental temperature) by having a temperature value proportional to the high and low of the initial temperature.

In addition, the dish dryer 100 (processor of) sets a target maximum operating time (S113). The processor sets a sufficient time for dish drying according to the experiment as the target maximum operation time.

Thereafter, the dish dryer 100 (the processor of) starts driving the heater and the fan with the first performance (S115) and starts counting the dish drying operation times of the heater and the fan (S117). The processor outputs a control signal for operating the heater and the fan with the first performance to the heater and the fan, and starts counting the dish drying operation time using a counter inside the processor.

The dish dryer 100 (processor of) measures the current temperature and current humidity inside the dish dryer 100 ( S119 ). Periodically (eg, 1 second, etc.), the processor receives a sensing signal from the sensor 110 , determines (measures) the current temperature and current humidity from the sensing signal, and stores the current temperature and current humidity in a memory.

The dish dryer 100 (processor of) determines whether the currently measured temperature has reached a set target end temperature (S121).

When the target end temperature is reached, the dish dryer 100 (processor of) determines whether the set target humidity has been reached ( S123 ). When the target humidity is reached, the dish dryer 100 (processor of) ends the dish drying operation (S133 to S137).

The dish dryer 100 (the processor of) may end the dish drying operation under one condition of reaching the target end temperature variably set from the target humidity and the initial temperature.

In addition, when the target humidity is not reached or the target end temperature is not reached, the dish dryer 100 (the processor of) determines the temperature state based on the current measured temperature and the previous measured temperature, and the determined temperature state is saturated. It is determined whether the state is (S125).

The dish dryer 100 (processor of) may determine whether the temperature state is a temperature rise state or a temperature saturation state from the periodically measured current measured temperature and the previous (or immediately preceding) measured temperature. For example, the processor determines the temperature state as a saturated state when the current measured temperature and the previous measured temperature are the same or the difference between the current measured temperature and the previous measured temperature is within a set threshold difference. If the current measurement temperature is higher than the previous measurement temperature or higher than the threshold difference, the processor determines the temperature rise state.

If the temperature state is the saturation state, the dish dryer 100 (processor of) determines whether the saturation state continues for more than the temperature saturation state maintenance time (S129). When the saturation state continues for more than the saturation state maintaining time, the dish dryer 100 (processor of) terminates the dish drying operation (S133 to S137).

The saturation state maintenance time specifies the time duration without temperature rise even in the maximum performance (first performance) operation of the heater, and is preset to, for example, 5 minutes, 10 minutes, 20 minutes, etc. (for example, in S111) or may be programmed. The saturation state maintenance time may be set differently according to the detected loading amount or loading setting amount of the dishes inside the dish dryer 100 .

The temperature at which the saturation state is reached is variable according to the outside air temperature outside the dish dryer 100 and the loading amount of the dishes inside the dish dryer 100 . For example, at an outside temperature (or initial temperature) of 23°C, the saturation temperature is reached around 60°C, whereas at an outside temperature of 17°C the saturation temperature is reached around 55°C and the saturation temperature also depends on the internal load. Such a saturated state may be recognized as a state in which the actual dish drying is completed.

Even in various external environments (for example, the dish dryer 100 is installed in an open environment and the temperature is kept low) and changes in the internal loading amount, the temperature saturation state is determined through temperature sensing in the first mode and the By judging the completion of drying the dishes in consideration of the holding time, it is possible to solve the problem of simply using only the end temperature of the wood and failing to reach it and thus continuously performing the drying operation.

When the initial temperature is low, the target end temperature is also set to be low, but there is an environment in which the target end temperature cannot be reached depending on the external environment in which the dish dryer 100 is installed. In this case, it may be determined that the operation of dish drying is completed in a saturated state.

If the temperature state is not saturated (the temperature is rising) or the saturation state continues for less than the temperature saturation state maintenance time, the dish dryer 100 (processor of the dish dryer 100) sets the counted dish drying operation time to the target maximum operation time. It is determined whether it has reached (S131).

When the target maximum operation time is not reached, the dish dryer 100 (processor of the dish dryer 100) periodically repeats the steps S119 and below, and when the target maximum operation time is reached, the dish dryer 100 (processor of the dish dryer 100) performs the dish drying operation to end (S133 to S137).

As described above, the dish dryer 100 according to the present invention reflects the influence of the outside air temperature (initial temperature) and the loading amount inside the dish dryer 100 in the first mode, so that the target temperature and target humidity cannot be checked. You can check the completion of dish drying.

In the process of ending the dish drying operation, the dish dryer 100 (processor of) outputs a heater control signal to the heater to end the heater operation (S133), and according to the count of the cooling time (S135), the fan control signal after the cooling time is output to the fan to end the fan operation (S137) to end the dish drying operation in the first mode.

3, the dish drying operation in the second mode will be described in detail. The dish dryer 100 (processor of) sets a target maximum operation time (S151). The processor sets a target maximum operating time (eg, 2 hours, etc.) in the second mode.

After setting the target maximum operating time, the dish dryer 100 (processor of) drives the heater and the fan with the second performance (S153). The processor outputs the fan control signal and the heater control signal of the second performance to the fan and the heater. For example, the dish dryer 100 (the processor of) transmits a control signal for driving the fan and the heater to the second performance (for example, 30% of the performance) lower than the first performance in the first mode. output to the heater.

The dish dryer 100 (processor of) starts counting the dish drying operation time (S155) and further counts the initial time (S157), and determines whether the initial time reaches the initial measurement time (S158). The initial measurement time may be, for example, 10 minutes, and the initial measurement time is a time set to initially calculate a temperature rise value after driving in the second mode.

When the counted initial time reaches the initial measurement time, the dish dryer 100 (processor of) measures the temperature (S159) and calculates a temperature rise value during the initial measurement time (S161). For example, the processor may determine a temperature difference between the temperature measured after the lapse of the initial measurement time and the initial temperature (refer to S101 of FIG. 2 ) or a ratio of the difference temperature to the initial temperature as the temperature rise value.

The dish dryer 100 (processor of) determines an additional operation time corresponding to the calculated temperature rise value, and adds (adds) the additional operation time to the set target maximum operation time (see S151) to change the set target maximum operation time ( S163).

The processor is configured to impart (calculate) an additional operating time that is inversely proportional to the temperature rise. When the initial outside temperature is low and the drying load of dishes is large, the temperature rise is low. In this case, more additional operation time is given to the target maximum operation time so that complete dish drying is possible. On the other hand, when the initial external temperature is high or the amount of dry dishes is small, the temperature rise is high. In this case, complete dish drying is possible even with a small additional operating time.

Thereafter, the dish dryer 100 (processor of) periodically (eg, 1 second) measures the current humidity ( S165 ). The processor periodically receives a sensing signal from the sensor 110 , determines the current humidity from the received sensing signal, and stores it in a memory.

The dish dryer 100 (processor of) determines the humidity state based on the current measured humidity and the previously measured humidity, and determines whether the determined humidity state is a downward saturation state (S167).

The dish dryer 100 (processor of) may determine whether it is a falling state or a downward saturated state from the periodically measured current measured humidity and previous measured humidity. For example, the processor determines the humidity state as the downward saturation state when the current measured humidity and the previous measured humidity are the same or the difference between the current measured humidity and the previous measured humidity is within a set threshold difference (eg, 5%, etc.) . If the current measured humidity is lower than the previous measured humidity or is lower than the threshold difference, the processor determines the falling state. Here, 'downward saturation' is distinct from 'saturation' in the general sense, which refers to the state in which the maximum amount of water vapor that can be contained in the air at a constant temperature is contained. and may be simply referred to as 'saturation' hereinafter.

When the humidity state is the downward saturation state, the dish dryer 100 (processor of) determines whether the downward saturation state continues for more than the humidity saturation state maintenance time (S169). When the downward saturation state continues for more than the humidity saturation state maintenance time, the dish dryer 100 (processor of) terminates the dish drying operation (S173 to S177).

The humidity saturation state maintenance time specifies a time duration without a drop in humidity even in a constant performance operation of the heater, and may be preset (eg, in S151) to 30 minutes or the like. The humidity saturation state maintenance time may be set differently according to the loading amount or loading set amount of the dishes inside the dish dryer 100 .

In the second mode, such as sleep or night mode, the processor of the dish dryer 100 is configured to determine the completion of drying the dishes inside the dish dryer 100 by the downward saturation and duration of the humidity instead of the measured humidity value. do. When the humidity sensor 110 has an inaccuracy, the humidity value itself (absolute value) of the humidity sensor 110 is less accurate, but even if the accuracy is low, the humidity value change (change value) can be measured more accurately by the same sensor. , by measuring the change in the humidity value, it is possible to determine whether the dishes are dried or not. When the load of the tableware is small or the tableware has little moisture or moisture, the completion of drying of the tableware can be recognized efficiently by checking the saturation state.

When the humidity state is not in the downward saturation state (the humidity is falling) or it continues for less than the humidity saturation state maintenance time, the dish dryer 100 (processor of) sets the target in which the dish drying operation time is changed by reflecting the initial temperature rise. It is determined whether the maximum operation time has been reached (S171). The processor determines whether dish drying is completed with an appropriate target maximum operating time according to the internal and external environment of the dish dryer 100 by using the target maximum operating time reflecting the temperature rise value that is dynamically changed according to the initial temperature and the internal loading amount.

When the target maximum operation time is reached, the dish dryer 100 (processor of) ends the dish drying operation (S173 to S177).

In the second mode such as the sleep mode or the night mode, the processor of the dish dryer 100 drives the heater and the fan with lower performance compared to the first mode. When a heater and a fan are driven with low performance, the heat output of the heater is low, and the temperature rises gradually, but temperature saturation does not occur. Therefore, in the second mode, it is an inefficient method to determine dish drying using temperature or temperature saturation.

Instead, in the second mode, the target maximum operating time was longer than the target maximum operating time in the first mode, and it was confirmed that the humidity dropped and the humidity was saturated during a long drying period. In the second mode, when the humidity is lowered, even if the heater is continuously driven, additional dish drying is not performed or is very insignificant.

Therefore, in the second mode, unlike the first mode, it is preferable to determine whether the drying of the dishes is completed using the lower saturation of the humidity and the variably set target maximum operation time.

In the process of terminating the dish drying operation, the dish dryer 100 (processor of) outputs a heater control signal to the heater to end the heater operation (S173), and according to the count of the cooling time (S175), the fan control signal after the cooling time is output to the fan to end the fan operation (S177) to end the dish drying operation in the second mode.

The present invention described above, various substitutions, modifications and changes are possible within the scope without departing from the technical spirit of the present invention for those of ordinary skill in the art to which the present invention pertains. It is not limited by the drawings.

100: dish dryer
110: sensor
120: heater
130: fan
140: drying rack
150: open and close door
151: vent
160: drip tray
180: control panel
190: body
191: Processor
193 : memory

Claims (12)

delete delete delete delete delete A dish drying method performed by a dish dryer, comprising:
determining an operating mode;
performing and terminating the dish drying operation based on the temperature currently measured in the determined operation mode in the first mode; and
performing and terminating the dish drying operation based on the target maximum end time calculated from the temperature initially measured in the determined operation mode in the second mode;
The first mode is a mode in which a fan and a heater provided in the dish dryer are performed with a first performance,
The second mode is a mode for performing the fan and the heater with a second performance lower than the first performance,
How to dry dishes. 7. The method of claim 6,
The step of performing and terminating the dish drying operation in the first mode includes:
measuring a current temperature inside the dish dryer;
determining whether the temperature state is saturated based on the current measured temperature and the previous measured temperature; and
terminating the dish drying operation when the saturation state continues for more than the saturation state maintenance time;
How to dry dishes. 8. The method of claim 7,
The step of determining whether the temperature state is in the saturation state is the temperature state when the periodically measured current measured temperature and the previous measured temperature are the same or the difference between the current measured temperature and the previous measured temperature is within a set threshold difference Determining saturation,
How to dry dishes. A dish drying method performed by a dish dryer, comprising:
determining an operating mode;
performing and terminating the dish drying operation based on the temperature currently measured in the determined operation mode in the first mode; and
performing and terminating the dish drying operation based on the target maximum end time calculated from the temperature initially measured in the determined operation mode in the second mode;
The step of performing and terminating the dish drying operation in the second mode includes:
setting a target maximum operating time;
calculating a temperature rise value during the initial measurement time;
determining an additional operation time corresponding to the temperature rise value and changing the set target maximum operation time by adding the additional operation time to the set target maximum operation time;
determining whether the dish drying operation time has reached the changed target maximum operation time; and
terminating the dish drying operation when the dish drying operation time reaches the changed target maximum operation time;
How to dry dishes. 10. The method of claim 9,
The step of determining the additional operation time corresponding to the temperature increase and changing the set target maximum operation time gives an additional operation time that is inversely proportional to the temperature increase,
How to dry dishes. 10. The method of claim 9,
After changing the set target maximum operating time,
measuring a current humidity inside the dish dryer; and
Further comprising; determining whether the humidity state is a downward saturation state based on the current measured humidity and the previous measured humidity;
When the downward saturation state continues for more than the saturation state maintenance time, the dish drying operation is also terminated,
How to dry dishes. 12. The method of claim 11,
The step of determining whether the humidity state is a downward saturation state is the humidity state when the periodically measured current measured humidity and the previously measured humidity are the same or a difference between the current measured humidity and the previously measured humidity is within a set threshold difference to determine the downward saturation state,
How to dry dishes.

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