KR101100175B1 - Method for controlling temperature of washing water in washing machine - Google Patents

Method for controlling temperature of washing water in washing machine Download PDF

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Publication number
KR101100175B1
KR101100175B1 KR1020040091369A KR20040091369A KR101100175B1 KR 101100175 B1 KR101100175 B1 KR 101100175B1 KR 1020040091369 A KR1020040091369 A KR 1020040091369A KR 20040091369 A KR20040091369 A KR 20040091369A KR 101100175 B1 KR101100175 B1 KR 101100175B1
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South Korea
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temperature
washing
water
target
washing water
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KR1020040091369A
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Korean (ko)
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KR20060042636A (en
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이운용
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엘지전자 주식회사
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • D06F34/24—Liquid temperature
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/087—Water level measuring or regulating devices
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/16—Washing liquid temperature
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/28—Electric heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

본 발명은 구동모터에 의해 회전이 가능하도록 설치된 세탁조 내로 급수된 세탁수를 가열하는 히터, 세탁조 내의 세탁수 온도를 감지하는 온도센서, 세탁조를 회전시키기 위한 구동모터 및 상기 구동모터와 히터의 동작을 제어하는 제어부를 구비하는 세탁기의 세탁수 온도 제어방법에 관한 것이다.The present invention is a heater for heating the wash water supplied into the washing tank installed to be rotated by the drive motor, a temperature sensor for detecting the temperature of the washing water in the washing tank, a drive motor for rotating the washing tank and the operation of the drive motor and the heater It relates to a washing water temperature control method of a washing machine having a control unit for controlling.

본 발명은 세탁조로 급수된 세탁수의 온도를 감지하는 수온감지단계;The present invention provides a water temperature sensing step of sensing the temperature of the wash water supplied to the washing tank;

감지된 세탁수의 온도구간에 따라 상기 구동모터의 온/오프타임을 다르게 수행하는 히팅단계;A heating step of performing on / off time of the driving motor differently according to the detected temperature range of the washing water;

히팅된 세탁수의 온도를 재감지하여 목표온도 이상인지를 판단하는 목표온도감지단계; 및A target temperature sensing step of re-sensing the temperature of the heated wash water to determine whether or not the target temperature is above the target temperature; And

목표온도 이상이면 히터의 작동을 중지하고 사용자가 선택한 코스에 따라 세탁을 진행하는 코스진행단계를 포함하여 구성된다.If it is above the target temperature is configured to include a course progress step of stopping the operation of the heater and proceeding the washing according to the course selected by the user.

이에 따라, 히팅효율이 높아져 전체적인 히팅시간이 감소되므로 저온의 세탁수 히팅시 소모되는 전력을 최대한 억제시킬 수 있다.Accordingly, since the heating efficiency is increased and the overall heating time is reduced, it is possible to suppress the power consumed when heating the washing water at low temperature.

세탁기, 온도제어, 세탁수, 구동모터제어, 온오프타임Washing machine, temperature control, washing water, driving motor control, on / off time

Description

세탁기의 세탁수 온도 제어방법{Method for controlling temperature of washing water in washing machine}Method for controlling temperature of washing water in washing machine

도 1은 일반적인 세탁기의 세탁수 온도 제어방법을 나타내는 흐름도.1 is a flow chart showing a washing water temperature control method of a general washing machine.

도 2는 본 발명에 이용되는 세탁기 제어부의 회로구성을 개략적으로 나타내는 블록도.Figure 2 is a block diagram schematically showing the circuit configuration of the washing machine control unit used in the present invention.

도 3은 본 발명에 따른 세탁기의 세탁수 온도 제어방법을 나타내는 흐름도.3 is a flow chart showing a washing water temperature control method of a washing machine according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10...제어부 11...마이컴10 ... control unit 11 ... microcomputer

20...전면조작부 30...수위센서20.Front control panel 30 ... Water level sensor

40...온도센서 50...급수밸브40 ... temperature sensor 50 ... water supply valve

60...히터 70...구동모터60 ... heater 70 ... drive motor

본 발명은 구동모터에 의해 회전이 가능하도록 설치된 세탁조 내로 급수된 세탁수를 가열하는 히터, 세탁조 내의 세탁수 온도를 감지하는 온도센서, 세탁조를 회전시키기 위한 구동모터 및 상기 구동모터와 히터의 동작을 제어하는 제어부를 구비하는 세탁기의 세탁수 온도 제어방법에 관한 것이다.The present invention is a heater for heating the wash water supplied into the washing tank installed to be rotated by the drive motor, a temperature sensor for detecting the temperature of the washing water in the washing tank, a drive motor for rotating the washing tank and the operation of the drive motor and the heater It relates to a washing water temperature control method of a washing machine having a control unit for controlling.

일반적으로 세탁기는 기 설정된 알고리즘에 따라 세탁, 헹굼, 탈수 등의 과정을 거쳐 오염된 세탁물로부터 오염물질을 제거하도록 회전날개, 외조 또는 내조의 수평방향 회전을 이용한 전자동 세탁기 또는 드럼의 수직방향 회전을 이용한 드럼세탁기로 크게 구분될 수 있다.In general, a washing machine uses a vertical rotation of a fully automatic washing machine or drum using horizontal rotation of a rotary blade, outer tub or inner tub to remove contaminants from contaminated laundry through washing, rinsing, and dehydration according to a predetermined algorithm. It can be divided into drum washing machine.

일반적인 드럼세탁기의 구조는 구동모터로부터 구동력을 전달받아 정역회전이 가능하도록 본체 내에 설치된 드럼이 정역회전하면서 드럼 내부의 세탁물들을 반복낙하시키는 과정에서 발생되는 세탁물과 드럼내면과 세탁수와의 상호마찰에 의하여 세탁이 이루어지도록 되어 있다.In general, the structure of the drum washing machine is applied to the friction between laundry and the drum inner surface and the washing water generated in the process of repeatedly dropping the laundry inside the drum while the drum installed in the main body rotates forward and backward to receive the driving force from the driving motor. By washing is made.

또한, 상기 드럼세탁기에는 드럼의 외측으로는 원통형의 터브가 복수의 현가장치에 의하여 지지되어 있으며, 터브의 일측으로 사용자의 조작에 따라 세탁수를 가열하도록 작동되는 히터와 세탁수의 온도를 감지하는 온도센서가 설치된다. 그리고, 본체의 일측으로 드럼내의 세탁수 수위를 감지하는 수위센서 및 온수와 냉수가 세탁기 내부로 공급되도록 급수밸브가 구비된다.In addition, the drum washing machine is supported by a plurality of suspension tubs on the outside of the drum, the one side of the tub to sense the temperature of the heater and the washing water operated to heat the wash water according to the user's operation Temperature sensor is installed. Then, the water level sensor for detecting the washing water level in the drum to one side of the main body and a water supply valve so that the hot water and cold water is supplied into the washing machine.

또한, 세탁기의 전체적인 동작제어를 위한 마이컴 및 이 마이컴과 연결된 전면조작부 더 구비하고 있다. 상기 마이컴은 상기 온도센서로부터 전달된 신호를 전달받아 이루어지는 히터의 동작 제어를 포함하여 사용자가 선택하는 모드에 따라 미리 프로그램된 다양한 동작 제어를 수행한다.In addition, the microcomputer for the overall operation control of the washing machine and the front operation unit connected to the microcomputer is further provided. The microcomputer performs various pre-programmed control operations according to a mode selected by the user, including control of a heater that receives the signal transmitted from the temperature sensor.

전술한 바와 같이 세탁수는 세탁효율을 높히기 위하여 사용자의 선택에 의해 세탁수가 목표온도인 약 40℃에 이르도록 히터에 의해 가열되는데, 이때 세탁수의 온도를 제어하기 위한 종래의 방법은 다음과 같다.As described above, the washing water is heated by the heater so that the washing water reaches a target temperature of about 40 ° C. by the user's selection in order to increase the washing efficiency. The conventional method for controlling the temperature of the washing water is as follows. .

도 1에 도시된 바와 같이, 사용자가 전면조작부를 통해 세탁모드 및 동작설정을 완료하면 마이컴은 급수밸브를 제어하여 소정량의 세탁수를 터브 내로 공급한다.As shown in FIG. 1, when the user completes the washing mode and operation setting through the front control unit, the microcomputer controls the water supply valve to supply a predetermined amount of washing water into the tub.

세탁수의 공급이 완료되면, 마이컴은 히터를 작동시켜 세탁수를 가열함과 동시에 구동모터를 작동시켜 드럼 내에서 세탁수의 열교환이 원활하게 이루어질 수 있도록 드럼을 회전시킨다. 마이컴은 온도센서로부터 수시로 목표온도를 체크하여 온도센서로부터 세탁수의 온도가 목표온도 이상으로 가열되었다는 온도신호가 전달되면, 상기 히터와 구동모터의 작동을 중지시키고 사용자가 지정한 세탁코스를 진행한다.When the supply of the washing water is completed, the microcomputer rotates the drum to operate the heater to heat the washing water and at the same time the driving motor to smoothly exchange heat of the washing water in the drum. The microcomputer checks the target temperature from the temperature sensor at any time, and when a temperature signal is transmitted from the temperature sensor indicating that the temperature of the washing water is heated above the target temperature, the microcomputer stops the operation of the heater and the driving motor and proceeds to the washing course designated by the user.

그러나, 이러한 종래의 세탁수 온도 제어방법은 세탁수가 급수된 이후 목표온도에 이를 때까지 구동모터와 히터가 획일적으로 동작되도록 하기 때문에 히팅시간에 정비례하여 전력소비량이 증대되게 된다.However, such a conventional method for controlling the washing water temperature increases power consumption in direct proportion to the heating time since the driving motor and the heater are uniformly operated until the target temperature is reached after the washing water is supplied.

따라서, 겨울철과 같이 급수되는 세탁수의 온도가 낮은 경우, 목표온도까지 이르는 세탁수 가열시간은 더욱 길어지게 되므로 겨울철 세탁기 가동으로 인한 전력소비량이 급증하게 되는 문제점이 발생된다.Therefore, when the temperature of the wash water supplied in the winter is low, the washing water heating time up to the target temperature becomes longer, so that the power consumption due to the winter washing machine operation is rapidly increased.

이러한 수온의 변화에 따른 일관적이지 못한 전력소비 패턴은 일반 사용자로 하여금 제품에 대한 불신 및 사용상의 불편함으로 이어지는 또 다른 문제를 발생시킨다.This inconsistent power consumption pattern caused by the change of water temperature causes another problem that leads to the end user's distrust and inconvenience in using the product.

본 발명은 상기한 종래 문제점들을 고려하여 이루어진 것으로서, 세탁기 내로 공급되는 세탁수의 온도변화에 따라 세탁기의 전력소모량이 급변하지 않도록 저온의 세탁수를 히팅시키는데 소모되는 전력을 최대한 억제시킬 수 있는 세탁기의 세탁수 온도 제어방법을 제공하는데 그 목적이 있다. The present invention has been made in consideration of the above-described conventional problems, and the washing machine capable of maximally suppressing the power consumed to heat the low-temperature wash water so that the power consumption of the washing machine does not change suddenly according to the temperature change of the wash water supplied into the washing machine. The purpose is to provide a method for controlling the wash water temperature.

상기 목적을 달성하기 위하여, 본 발명은 구동모터에 의해 회전이 가능하도록 설치된 세탁조 내로 급수된 세탁수를 가열하는 히터, 세탁조 내의 세탁수 온도를 감지하는 온도센서, 세탁조를 회전시키기 위한 구동모터 및 상기 구동모터와 히터의 동작을 제어하는 제어부를 구비하는 세탁기의 세탁수 온도 제어방법에 있어서, 세탁조로 급수된 세탁수의 온도를 감지하는 수온감지단계와, 감지된 세탁수의 온도구간에 따라 상기 구동모터의 온/오프타임을 다르게 수행하는 히팅단계와, 히팅된 세탁수의 온도를 재감지하여 목표온도에 도달하였는지 판단하는 목표온도감지단계와, 목표온도 이상이면 사용자가 선택한 코스에 따라 세탁을 진행하는 코스진행단계를 포함하는 것을 특징으로 한다.In order to achieve the above object, the present invention is a heater for heating the wash water supplied into the washing tank installed to be rotated by the drive motor, a temperature sensor for sensing the temperature of the washing water in the washing tank, the drive motor for rotating the washing tank and the In the washing water temperature control method of the washing machine having a control unit for controlling the operation of the drive motor and the heater, the water temperature sensing step of detecting the temperature of the washing water supplied to the washing tank, and the drive according to the detected temperature range of the washing water The heating step of performing the on / off time of the motor differently, the target temperature sensing step of determining whether the target temperature is reached by re-sensing the temperature of the heated washing water, and if the target temperature is higher than the washing process according to the course selected by the user. It characterized in that it comprises a course progress step.

또한, 상기 히팅단계에서 구동모터의 온/오프타임은 세탁수의 온도가 낮은 온도구간일수록 오프타임이 길게 설정되고 높은 온도구간일수록 온타임이 길게 설정된다.Further, in the heating step, the on / off time of the driving motor is set to a longer off time as the temperature range of the wash water is lower, and a longer on time as the temperature range is higher.

또한, 목표온도감지단계 이후 세탁수가 미리 설정된 목표수위까지 도달했는지를 판단하는 세탁수 목표수위 감지 단계와, 목표수위에 도달된 것으로 판단되면 코스진행단계를 진행하고 도달되지 않았으면 세탁조 내로 소정량의 세탁수가 더 급 수되도록 한 다음 상기 수온감지단계를 반복하도록 하는 세탁수 목표수위 판단 단계를 더 포함할 수도 있다.In addition, after the target temperature detection step, the washing water target water level detection step for determining whether the washing water has reached the predetermined target water level, and if it is determined that the target water level is reached, the course progress step is performed. The washing water may further include a washing water target level determination step of allowing more water to be supplied and then repeating the water temperature sensing step.

본 발명의 특징 및 이점들은 첨부도면에 의거한 다음의 바람직한 실시예에 대한 상세한 설명으로 더욱 명백해질 것이다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 발명자가 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.The features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

본 발명의 일실시예에 따른 상세한 설명에 앞서, 세탁기의 세탁수 온도 제어방법이 적용되는 세탁기는 종래의 일반적인 세탁기와 그 구성 및 동작이 모두 동일하므로 여기서의 상세한 설명은 생략하기로 하며, 본 발명에서 사용되는 세탁조는 설명의 명료함을 위하여 드럼세탁기의 경우 터브와 드럼을 총칭한 것으로서, 이는 드럼세탁기와는 다른 방식의 일반 세탁기에 있어서 상기 터브와 드럼에 대응되는 구성인 외조와 외조의 내부에서 회전하는 내조를 총칭한 것에 해당되는 것임을 알려둔다.Prior to the detailed description according to an embodiment of the present invention, the washing machine to which the washing water temperature control method of the washing machine is applied is the same as the configuration and operation of the conventional washing machine, so the detailed description thereof will be omitted. In the washing machine used in the general term tub and drum for the sake of clarity of the description, which is a general washing machine different from the drum washing machine in the inner tub and outer tub which is a configuration corresponding to the tub and drum Note that this corresponds to the collective name of the rotating inner tank.

도 2는 본 발명에 이용되는 세탁기 제어부의 회로구성을 개략적으로 나타내는 블록구성도로서, 본 발명에 따른 세탁기 제어부(10)는 소정의 프로그램에 의해 세탁동작을 제어하고 제어된 신호를 출력하는 마이컴(11)를 포함한다. 이 마이컴(11)에는 세탁코스 프로그램에 대한 운전코스의 신호를 입력하는 전면조작부(20)와, 마이컴(11)의 제어신호에 의하여 세탁조에 세탁수를 공급하는 급수밸브(50)와, 상기 급수밸브(50)에서 급수되는 세탁수와 배수되는 세탁수의 수위를 감지하는 수 위센서(30)와, 상기 마이컴(11)의 제어신호에 의하여 세탁조 내의 세탁수의 온도를 감지하는 온도센서(40)와, 세탁수를 가열하는 히터(60)와, 세탁조의 정역회전을 수행하는 구동모터(70)가 각각 연결된다.FIG. 2 is a block diagram schematically illustrating a circuit configuration of a washing machine control unit used in the present invention. The washing machine control unit 10 according to the present invention controls a washing operation by a predetermined program and outputs a controlled signal. 11). The microcomputer 11 includes a front manipulator 20 for inputting a driving course signal for the washing course program, a water supply valve 50 for supplying washing water to the washing tank by a control signal of the microcomputer 11, and the water supply. Water level sensor 30 for detecting the water level of the wash water supplied from the valve 50 and the wash water drained, and a temperature sensor 40 for detecting the temperature of the wash water in the washing tank by the control signal of the microcomputer 11 ), A heater 60 for heating the wash water, and a drive motor 70 for performing forward and reverse rotation of the washing tank are connected to each other.

도 3에 도시된 바와 같이, 본 발명에 따른 세탁수 온도제어 방법은 세탁조로 급수된 세탁수의 온도를 감지하는 수온감지단계(S1)와, 감지된 세탁수의 온도구간에 따라 상기 구동모터(70)의 온/오프타임이 다르게 수행되는 히팅단계(S2)와, 히팅된 세탁수의 온도를 재감지하여 목표온도에 도달하였는지 판단하는 목표온도감지단계(S3)와, 목표온도 이상이면 히터작동을 중지하고 사용자가 선택한 코스에 따라 세탁을 진행하는 코스진행단계(S4)로 구성된다.As shown in Figure 3, the washing water temperature control method according to the present invention is a water temperature detection step (S1) for detecting the temperature of the wash water supplied to the washing tank, the drive motor in accordance with the temperature section of the detected wash water ( 70, the heating step (S2) is performed differently, the target temperature detection step (S3) to determine whether the target temperature is reached by re-sensing the temperature of the heated wash water, and if the heater temperature is higher than the target temperature It consists of a course progress step (S4) to stop and proceed with the washing according to the course selected by the user.

제어부(10)의 마이컴(11)에는 보다 세밀한 히팅작업을 수행할 수 있도록 다단계로 온도구간이 설정되며, 세탁수의 온도가 낮은 온도구간일수록 구동모터의 오프타임이 길게 설정되고 세탁수의 온도가 높은 온도구간일수록 구동모터의 오프타임이 길게 설정되어 있다.In the microcomputer 11 of the control unit 10, a temperature section is set in multiple stages to perform a more detailed heating operation. The lower the temperature range of the wash water, the longer the off-time of the driving motor is set, and the temperature of the wash water is increased. The higher the temperature range, the longer the off time of the drive motor is.

상기 목표온도는 세탁효율이 극대화 될 수 있도록 약 40℃가 적당하다.The target temperature is about 40 ℃ is suitable to maximize the washing efficiency.

본 발명에 따른 세탁수 온도가 제어되는 방법을 살펴보면 다음과 같다.Looking at the method of controlling the wash water temperature according to the present invention.

먼저 세탁조내로 미리 설정된 양만큼 세탁수가 공급되면 온도센서(40)는 세탁수의 온도를 감지(S1)한다.First, when the washing water is supplied to the washing tank in a predetermined amount, the temperature sensor 40 detects the temperature of the washing water (S1).

제어부(10)는 온도센서(40)로부터 세탁수의 온도신호를 전달받아 현재 세탁수 온도에 해당하는 해당 온도구간을 검색(S21)한다.The controller 10 receives the temperature signal of the wash water from the temperature sensor 40 and searches for a corresponding temperature section corresponding to the current wash water temperature (S21).

해당 온도구간을 검색이 완료되면, 상기 제어부는 히터(60)를 작동시켜 세탁 조를 가열하는 동시에 해당 온도구간에 설정된 온/오프타임 동안 구동모터(70)를 작동(S22)시키면서 세탁수를 히팅(S2)시킨다.When the search for the corresponding temperature section is completed, the control unit operates the heater 60 to heat the washing tank while heating the washing water while operating the driving motor 70 for the on / off time set in the corresponding temperature section (S22). (S2)

본 발명에 따르면 세탁수의 온도가 낮은 구간일수록 구동모터(70)의 오프타임이 길게 제어되고 세탁수의 온도가 높은 구간일수록 구동모터(70)의 온타임이 길게 제어되도록 하고 있다.According to the present invention, the off-time of the driving motor 70 is controlled longer as the section of the wash water temperature is low, and the on-time of the driving motor 70 is controlled as the section of the washing water temperature is high.

따라서, 세탁수의 온도가 낮은 구간일수록 구동모터(70)의 오프타임이 길게 제어되므로 세탁수의 가열에 주력하게 되어 불필요한 구동모터(70)의 전력소모를 최소화시킬 수 있고, 세탁수의 온도가 높은 온도구간일수록 구동모터(70)의 온타임이 길게 제어되므로 세탁조 내에서 가열된 세탁수간의 열교환이 촉진됨으로써 세탁수의 온도상승이 단시간 내에 이루어져 전력소비를 최소화시킬 수 있다.Therefore, the lower the temperature of the wash water, the longer the off-time of the drive motor 70 is controlled, so the focus on the heating of the wash water can minimize the power consumption of the unnecessary drive motor 70, the temperature of the wash water is Since the on-time of the driving motor 70 is controlled longer in a high temperature section, heat exchange between the washing waters heated in the washing tank is promoted, thereby increasing the temperature of the washing water within a short time, thereby minimizing power consumption.

본 발명에 따르면 세탁수가 급수된 이후 목표온도에 이를 때까지 구동모터(70)의 온/오프타임이 온도구간별로 가변제어되기 때문에 종래와 같이 획일적인 히팅동작만이 수행되던 히팅방법에 비하여 전체적인 히팅시간이 단축되어 세탁수 가열을 위한 전력소비량을 감소시킬 수 있다. 특히, 겨울철과 같이 세탁수의 수온이 매우 낮을 경우, 종래에 비하여 히팅시간은 더욱 큰 폭으로 감소되므로 전력소비량 은 더욱 크게 감소된다.According to the present invention, since the on / off time of the driving motor 70 is variably controlled for each temperature section until the target temperature is reached after the washing water is supplied, the overall heating is performed as compared to the heating method in which only a uniform heating operation is performed as in the related art. The time can be shortened to reduce the power consumption for washing water heating. In particular, when the water temperature of the wash water is very low, such as winter, the heating time is significantly reduced compared to the prior art, so the power consumption is further reduced.

해당 온도구간 따른 히팅동작이 완료되면, 제어부(10)는 온도센서(40)로 하여금 세탁수의 온도를 재감지하여 히팅된 세탁수의 온도가 목표온도에 도달하였는지 판단(S3)한다.When the heating operation according to the temperature section is completed, the controller 10 detects the temperature of the washing water temperature again by the temperature sensor 40 and determines whether the temperature of the heated washing water reaches the target temperature (S3).

세탁수의 온도가 목표온도에 도달한 것으로 판단되면 사용자가 선택한 코스 에 따라 세탁을 진행(S4)하고, 목표온도에 도달하지 않은 것으로 판단되면 상기 히팅단계(S2)를 반복한다.If it is determined that the temperature of the wash water reaches the target temperature, the washing process is performed according to the course selected by the user (S4), and if it is determined that the target temperature has not been reached, the heating step (S2) is repeated.

한편, 본 발명의 다른 실시예로서 목표온도감지단계(S3) 이후 세탁수의 수위감지단계(S10)와, 미리 설정된 목표수위에 도달했는지를 판단하는 세탁수 목표수위 감지 단계(S11)가 더 포함될 수 있다.On the other hand, as another embodiment of the present invention further includes a washing water level detection step (S10) of the washing water after the target temperature detection step (S3), and the washing water target level detection step (S11) to determine whether the predetermined target water level has been reached. Can be.

이 경우, 목표수위에 도달된 것으로 판단되면 다음 단계인 코스진행단계(S4)를 진행하고, 목표수위에 도달되지 않은 것으로 판단되면 급수밸브(50)를 제어하여 세탁조 내로 미리 설정된 소정량의 세탁수가 더 급수되도록 하거나 목표수위에 이를 때까지 세탁수가 더 급수되도록 한 후 세탁수 온도감지단계(S1)가 재실시되도록 한다.In this case, when it is determined that the target water level is reached, the process proceeds to the next step (S4), and when it is determined that the water level is not reached, the water supply valve 50 is controlled to control the predetermined amount of washing water into the washing tank. After the water is supplied more or the wash water is further supplied until the target water level is reached, the washing water temperature sensing step S1 is performed again.

이렇게 하면, 본 발명에 적용된 세탁기의 세탁수 공급이 추가로 이루어지게 되는 경우에도 세탁수의 온도제어가 원활하게 이루어질 수 있다.In this case, even when the washing water supply of the washing machine applied to the present invention is additionally performed, temperature control of the washing water may be smoothly performed.

상기한 바와 같이 구성된 본 발명에 따른 세탁기의 세탁수 온도 제어방법에 의하면, 세탁수가 급수된 이후 목표온도에 이를 때까지 구동모터의 온/오프타임을 온도구간별로 가변제어함으로써 전체적인 히팅효율을 높혀 저온으로 공급되는 세탁수를 히팅시킬 경우 과도한 전력이 소모되는 것을 최대한 억제시킬 수 있는 효과가 있다.According to the washing water temperature control method of the washing machine according to the present invention configured as described above, by controlling the on / off time of the drive motor by temperature range until the washing water is reached to the target temperature to increase the overall heating efficiency low temperature When the washing water is supplied to the heating has an effect that can be suppressed to the maximum consumption of excessive power.

Claims (3)

구동모터에 의해 회전이 가능하도록 설치된 세탁조 내로 급수된 세탁수를 가열하는 히터, 세탁조 내의 세탁수 온도를 감지하는 온도센서, 세탁조를 회전시키기 위한 구동모터 및 상기 구동모터와 히터의 동작을 제어하는 제어부를 구비하는 세탁기의 세탁수 온도 제어방법에 있어서,A heater for heating the wash water supplied into the washing tank installed to be rotated by the drive motor, a temperature sensor for detecting the temperature of the washing water in the washing tank, a driving motor for rotating the washing tank, and a control unit for controlling the operation of the driving motor and the heater. In the washing water temperature control method of the washing machine having a; 세탁조로 급수된 세탁수의 온도를 감지하는 수온감지단계;A water temperature sensing step of sensing the temperature of the wash water supplied to the washing tank; 감지된 세탁수의 온도구간에 따라 상기 구동모터의 온/오프타임을 다르게 수행하는 히팅단계;A heating step of performing on / off time of the driving motor differently according to the detected temperature range of the washing water; 히팅된 세탁수의 온도를 재감지하여 목표온도 이상인지를 판단하는 목표온도감지단계; 및A target temperature sensing step of re-sensing the temperature of the heated wash water to determine whether or not the target temperature is above the target temperature; And 목표온도 이상이면 히터의 작동을 중지하고 사용자가 선택한 코스에 따라 세탁을 진행하는 코스진행단계를 포함하며If the target temperature is higher than the process of stopping the operation of the heater according to the course selected by the user includes a course progress step 상기 히팅단계에서 구동모터의 온/오프타임은 상기 수온감지단계에서 감지되는 세탁수의 온도가 설정된 온도구간에서 낮은 온도구간에 포함될 경우 상기 구동모터의 오프타임이 설정된 시간보다 길게 설정되고, 상기 수온감지단계에서 감지되는 세탁수의 온도가 설정된 온도구간에서 높은 온도구간에 포함될 경우 상기 구동모터의 온타임이 설정된 시간보다 길게 설정되는 것을 특징으로 하는 세탁기의 세탁수 온도 제어방법.In the heating step, the on / off time of the drive motor is set longer than the off time of the drive motor when the temperature of the wash water detected in the water temperature detection step is included in a low temperature section in the set temperature section, the water temperature The washing water temperature control method of the washing machine, characterized in that the on-time of the drive motor is set longer than the set time when the temperature of the washing water detected in the sensing step is included in a high temperature section in the set temperature section. 삭제delete 제 1항에 있어서,The method of claim 1, 목표온도감지단계 이후, 세탁수가 미리 설정된 목표수위까지 도달했는지를 판단하는 세탁수 목표수위 감지 단계 및After the target temperature detection step, the washing water target level detection step for determining whether the wash water reaches a predetermined target water level; 목표수위에 도달된 것으로 판단되면 코스진행단계를 진행하고, 도달되지 않았으면 세탁조 내로 소정량의 세탁수가 더 급수되도록 한 다음 상기 수온감지단계를 반복하도록 하는 세탁수 목표수위 판단 단계를 더 포함하는 것을 특징으로 하는 세탁기의 세탁수 온도 제어방법.If it is determined that the target water level is reached, the process proceeds to the step, if it is not reached further comprises a washing water target water level determination step to allow a predetermined amount of washing water to be further supplied into the washing tank and then repeat the water temperature detection step. Washing water temperature control method of the washing machine characterized in that.
KR1020040091369A 2004-11-10 2004-11-10 Method for controlling temperature of washing water in washing machine KR101100175B1 (en)

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