KR20030086739A - Method for judging exchange time of filter - Google Patents

Method for judging exchange time of filter Download PDF

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Publication number
KR20030086739A
KR20030086739A KR1020020024865A KR20020024865A KR20030086739A KR 20030086739 A KR20030086739 A KR 20030086739A KR 1020020024865 A KR1020020024865 A KR 1020020024865A KR 20020024865 A KR20020024865 A KR 20020024865A KR 20030086739 A KR20030086739 A KR 20030086739A
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KR
South Korea
Prior art keywords
time
fan motor
filter
speed
calculated
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KR1020020024865A
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Korean (ko)
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KR100482788B1 (en
Inventor
심인섭
신광식
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웅진코웨이주식회사
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Priority to KR10-2002-0024865A priority Critical patent/KR100482788B1/en
Publication of KR20030086739A publication Critical patent/KR20030086739A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/0086—Filter condition indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/4245—Means for power supply or devices using electrical power in filters or filter elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/4254—Allowing or improving visual supervision, e.g. lamps, transparent parts, windows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration

Abstract

PURPOSE: Provided is a method for judging exchange time of filter by comparing detected revolution per minute (RPM) of a fan motor and a reference RPM which is preset by wind velocity. CONSTITUTION: The method comprises the steps of detecting rotation speed of a fan motor and calculating accumulated time of filter use by multiplying revolution per minute (RPM) of the fan motor and rotation time, comparing the calculated accumulation time with a reference time, thereby normally rotating the fan motor when the calculated accumulation time is not greater than the reference time and calculating a rotation speed of the fan motor when the calculated time is no less than the reference time, comparing the calculated rotation speed with a reference speed, thereby normally rotating the fan motor when the calculated rotation speed of the fan motor is not greater than reference speed and detecting running time of the fan motor at the same calculated speed when the calculated rotation speed of the fan motor is no less than the reference speed, and comparing the detected running time with a reference time, thereby normally rotating the fan motor when the detected running time is no greater than the reference time and displaying filter exchange message on a display unit when the detected running time is greater than the reference time.

Description

필터의 교환시기 판단방법{Method for Judging Exchange Time of Filter}{Method for Judging Exchange Time of Filter}

본 발명은 공기청정기의 필터교환에 관한 것으로서, 보다 상세하게는 팬 모터의 속도와 각각의 풍속별로 미리 설정된 필터 교환을 필요로 하는 풍압에서의 팬 모터 속도를 비교하여 일정시간 높게 회전할 경우 필터교환을 표시하는 공기청정기 필터의 교환시기 판단방법에 관한 것이다.The present invention relates to a filter replacement of an air purifier, and more particularly, when the fan motor rotates at a high time by comparing the speed of the fan motor and the fan motor speed at a wind pressure requiring a preset filter replacement for each wind speed. It relates to a method of determining the time of replacement of the air purifier filter.

일반적으로 공기청정기는 먼지 및 세균 등에 의해 오염된 실내의 공기를 집진, 살균 및 탈취작용 등을 통해 정화시키는 장치로서, 외관을 이루는 본체와 이본체의 전방 또는 상방에는 각각 실내의 오염된 공기를 흡입하는 흡입구와 정화된 공기를 토출시키는 토출구가 형성된다. 또한 본체의 일측면에는 각종 조작키가 배치된 조작패널이 형성된다.In general, an air purifier is a device for purifying indoor air contaminated by dust and bacteria through dust collection, sterilization, and deodorization. And a discharge port for discharging the purified air. In addition, an operation panel on which various operation keys are arranged is formed on one side of the main body.

이러한, 공기 청정기의 흡입구에는 오염된 실내공기를 집진, 살균 및 탈취하기 위한 필터가 설치되어 있으며, 이 필터는 소정기간 사용한 후 필터가 오염되면 교환을 해야한다. 오염된 필터의 교환시기를 알려주기 위한 방법은 외부의 오염된 공기를 흡입하기 위해 팬 모터가 회전할 경우 발생되는 클록신호를 입력받아서 팬 모터가 회전한 시간을 계산하고, 누적된 회전시간을 미리 설정된 필터 교환 시간과 비교하여 설정된 시간보다 큰 경우 필터의 청소 또는 교환을 표시부를 통해 지시한다.The inlet of the air purifier is provided with a filter for collecting, sterilizing and deodorizing the contaminated indoor air. The filter should be replaced if the filter is contaminated after a predetermined period of time. The method for informing the replacement time of the contaminated filter is to input the clock signal generated when the fan motor rotates to suck the externally contaminated air, calculate the rotation time of the fan motor, and calculate the accumulated rotation time in advance. If the filter is larger than the set time compared to the set time of replacing the filter, the cleaning or replacing of the filter is instructed through the display unit.

이러한, 필터의 교환시기 판단방법은 팬 모터의 회전 누적시간이 필터 교환 필요시기로 설정된 일정 시간이 경과되면, 실제 필터교환 필요성의 유무에 관계없이 사용시간의 누적에 의해 필터를 교환해야 하므로 필터 교환에 대한 신뢰도가 떨어지게 되는 문제점이 있어서, 도 1에 나타낸 바와 같이, 풍속과 필터 사용시간의 곱이 일정값에 도달하면(S3), 정압센서를 이용하여 공기 유입구를 통해 유입되는 공기의 압력을 검출하며(S4), 검출된 공기압을 미리 설정된 기준값과 비교하여(S5) 필터의 오염 정도에 따른 필터 교환이 이루어지도록(S6) 개선된 필터 교환 판단방법 등이 사용되고 있다.In this method of determining the replacement time of the filter, when the cumulative rotation time of the fan motor is set to the time required for replacing the filter, the filter must be replaced by the accumulation of the use time regardless of the necessity of replacing the filter. There is a problem in that the reliability of the, as shown in Figure 1, when the product of the wind speed and the filter using time reaches a certain value (S3), by using a static pressure sensor to detect the pressure of the air flowing through the air inlet (S4) An improved filter replacement determination method or the like is used to compare the detected air pressure with a preset reference value (S5) so that the filter can be replaced according to the degree of contamination of the filter (S6).

그러나, 이러한 공기 유입구를 통해 유입되는 풍압을 검출하여 필터 교환을 지시하는 방법은 팬의 풍속에 따라 각각 다른 오염된 풍압을 감지하는 센서가 필요하며, 이 경우 각각의 풍속에 대해 오염된 풍압을 검출하여 필터 교환을 지시해야 하며, 팬 모터의 각 풍속별로 풍압센서가 필요하게 되어 원가 상승 및 설계 공간에 제약이 발생되는 문제점이 있다. 또한, 필터 교환으로 설정된 풍압값을 검출하는 센서를 1개만 사용하여 최대 풍속으로 운전시에만 필터 교환을 지시하는 경우에는 하단 풍속에서 필터 교환을 필요로 하는 충분한 오염이 발생하여도 필터 교환을 표시하지 못하는 문제점이 있다.However, the method of instructing the filter replacement by detecting the wind pressure flowing through the air inlet requires a sensor that detects different polluted wind pressures according to the wind speed of the fan, and in this case, detects the polluted wind pressure for each wind speed. In order to replace the filter, a wind pressure sensor is required for each wind speed of the fan motor, resulting in a problem of cost increase and design space limitation. In addition, if only one sensor for detecting the wind pressure value set by the filter replacement is used to instruct the filter replacement only when operating at the maximum wind speed, the filter replacement will not be displayed even if sufficient contamination is required at the lower wind speed. There is a problem.

따라서, 상기한 문제점을 해결하기 위하여, 본 발명은 풍압센서의 사용 없이 풍속과 모터 회전시간이 일정시간에 도달하면, 팬 모터의 속도와 각각의 풍속별로 미리 설정된 팬 모터의 속도를 비교하여 필터 교환을 표시하는 필터 교환시기 판단방법을 제공하는 것을 목적으로 한다.Therefore, in order to solve the above problems, the present invention, if the wind speed and the motor rotation time reaches a certain time without the use of the wind pressure sensor, by comparing the speed of the fan motor and the speed of the fan motor preset for each wind speed to replace the filter An object of the present invention is to provide a method of determining a filter replacement time that indicates.

도 1 은 종래의 필터 교환시기를 검출하는 과정을 나타낸 흐름도.1 is a flowchart illustrating a process of detecting a conventional filter replacement time.

도 2 는 필터 교환시기를 검출하기 위한 구성을 나타낸 블록도.2 is a block diagram showing a configuration for detecting a filter replacement time;

도 3 은 본 발명에 따른 필터 교환시기를 검출하는 과정을 나타낸 흐름도.3 is a flowchart illustrating a process of detecting a filter replacement time according to the present invention.

(도면의 주요 부분에 대한 부호의 설명)(Explanation of symbols for the main parts of the drawing)

10 : 전원 스위치100 : 제어부10: power switch 100: control unit

200 : 모터 구동부300 : 팬 모터200: motor drive unit 300: fan motor

400 : 클록신호 발생기500 : 디스플레이부400: clock signal generator 500: display unit

상기한 목적을 달성하기 위하여, 본 발명은 공기 청정기의 필터 교환시기를 판단하는 방법으로서, 팬 모터의 회전을 검출하여 팬 모터의 회전속도와 회전시간의 곱을 이용하여 필터의 누적 사용시간을 산출하는 단계; 상기 필터의 누적 사용시간을 기준시간과 비교하여 기준시간 이하인 경우 팬 모터를 정상 회전하고, 상기 필터의 누적 사용시간이 기준시간 이상인 경우 팬 모터의 회전속도를 산출하는 단계; 상기 산출된 팬 모터의 회전속도를 풍속별로 필요한 풍압에서의 기준속도와 비교하여, 산출된 회전속도가 기준속도 이하인 경우 팬 모터를 정상 회전하고, 상기 산출된 팬 모터의 회전속도가 기준속도 이상인 경우 산출된 회전속도가 지속된 시간을 검출하는 단계; 및 상기 검출된 지속시간을 기준시간과 비교하여 기준시간 이하인 경우 팬 모터를 정상회전하고, 기준시간 이상인 경우 디스플레이부에 필터 교환을 표시하는 단계를 포함한다.In order to achieve the above object, the present invention is a method for determining the filter replacement time of the air purifier, by detecting the rotation of the fan motor to calculate the cumulative use time of the filter using the product of the rotation speed of the fan motor and the rotation time step; Comparing the cumulative usage time of the filter with a reference time to normal rotation of the fan motor, and calculating the rotation speed of the fan motor when the cumulative usage time of the filter is more than the reference time; When the calculated rotational speed of the fan motor is compared with the reference speed at the required wind pressure for each wind speed, when the calculated rotational speed is less than the reference speed, the fan motor is rotated normally, and the calculated rotational speed of the fan motor is greater than the reference speed Detecting a time duration of the calculated rotation speed; And comparing the detected duration time with a reference time to rotate the fan motor normally when the reference time is less than the reference time, and when the filter time is longer than the reference time, displaying a filter change on the display unit.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 2는 필터 교환시기를 검출하기 위한 구성을 나타낸 도면이다. 도 2에서, 전원 스위치(10)가 온(ON)되면 구동전원이 제어부(100)로 인가하고, 상기 제어부(100)에 연결된 모터 구동부(200)는 인가된 전원을 이용하여 팬 모터(300)를 구동시킨다. 팬 모터(300)의 회전축 일단부에는 상기 팬 모터(300)의 회전을 검출하기 위한 클록신호 발생기(400)가 설치되어 있으며, 상기 클록신호 발생기(400)에서 발생된 신호는 제어부(100)에 입력된다. 미설명 부호 500은 디스플레이부로서 제어부(100)에 연결되어 필터 교환시기 표시 등과 같이 공기 청정기의 현재상태를 표시한다.2 is a diagram illustrating a configuration for detecting a filter replacement time. In FIG. 2, when the power switch 10 is turned on, driving power is applied to the control unit 100, and the motor driving unit 200 connected to the control unit 100 uses the applied power to the fan motor 300. Drive. One end of the rotation shaft of the fan motor 300 is provided with a clock signal generator 400 for detecting the rotation of the fan motor 300, the signal generated from the clock signal generator 400 to the control unit 100 Is entered. Reference numeral 500 is a display unit connected to the control unit 100 to display the current state of the air cleaner, such as filter replacement time display.

도 3은 본 발명에 따른 필터 교환시기를 검출하는 과정을 나타낸 흐름도로서, 도 2 및 도 3을 참조하여 필터 교환시기를 검출하는 방법을 보다 상세하게 설명하면 다음과 같다. 전원스위치(10)를 온 시켜서(S10) 팬 모터(300)를 회전시키면(S11) 클록신호 발생기(400)는 팬 모터(300)의 회전수를 카운트하여 제어부(100)로 입력한다(S12). 입력된 팬 모터(300)의 회전수를 이용하여 팬 모터(300)의 속도를 산출하고, 상기 팬 모터(300)에 전원을 인가하기 시작한 시간을 계산하며, 각각의 값을 곱하여 필터의 누적된 사용시간을 산출한다(S13). 상기S13단계에서 산출된 시간을 미리 설정된 필터의 누적사용시간에 대한 기준시간과 비교하여(S14), 산출된 시간이 기준시간 이하인 경우 팬 모터(300)를 정상회전 시키고(S15), 산출된 시간이 기준시간 이상인 경우 필터에 오염이 누적된 것으로 판단하여 클록신호 발생기(400)로부터 회전수를 입력받는다(S16). 상기 S16단계에서 입력받은 회전수를 이용하여 팬 모터(300)의 회전속도를 산출하고(S17), 미리 설정한 풍속별로 필터 교환이 필요한 풍압에서의 회전속도에 대한 기준속도와 비교하여(S18), 검출된 팬 모터(300)의 회전속도가 기준속도 이하인 경우 필터가 심각하게 오염되지 않은 것으로 판단하여 팬 모터(300)를 정상회전 시키고(S19), 팬 모터(300)의 회전속도가 기준속도 이상인 경우 필터에 누적된 오염이 심각한 것으로 판단하여 팬 모터(300)의 회전속도가 지속된 시간을 검출한다(S20). 즉 필터에 오염물질이 누적되면 외부공기를 흡입하기 위한 팬의 구동력이 저하되어 정상적인 회전속도보다 상승하게 된다. 상기 S20단계에서 검출된 지속시간을 기준시간과 비교하여(S21) 검출된 시간이 기준시간 이하인 경우 팬 모터(300)를 정상 회전시키고(S19), 검출된 시간이 기준시간 이상인 경우 디스플레이(500)를 통해 필터교환시기를 표시한다(S22).3 is a flowchart illustrating a process of detecting a filter replacement time according to the present invention, and the method of detecting the filter replacement time will be described in detail with reference to FIGS. 2 and 3 as follows. When the power switch 10 is turned on (S10) and the fan motor 300 is rotated (S11), the clock signal generator 400 counts the number of revolutions of the fan motor 300 and inputs it to the controller 100 (S12). . The speed of the fan motor 300 is calculated using the rotation speed of the input fan motor 300, the time at which the fan motor 300 starts to be applied is calculated, and the respective values are multiplied to accumulate the filter. The use time is calculated (S13). Comparing the time calculated in the step S13 with the reference time for the cumulative use time of the preset filter (S14), if the calculated time is less than the reference time to rotate the fan motor 300 normally (S15), the calculated time If it is more than this reference time, it is determined that contamination is accumulated in the filter, and the rotation speed is received from the clock signal generator 400 (S16). The rotation speed of the fan motor 300 is calculated using the rotation speed input in the step S16 (S17), and compared with the reference speed for the rotation speed at the wind pressure that needs to replace the filter for each preset wind speed (S18). When the detected rotational speed of the fan motor 300 is less than or equal to the reference speed, it is determined that the filter is not seriously polluted and the fan motor 300 is rotated normally (S19), and the rotational speed of the fan motor 300 is the reference speed. In the case of abnormality, the contamination accumulated in the filter is determined to be serious to detect a time for which the rotation speed of the fan motor 300 is maintained (S20). That is, when contaminants accumulate in the filter, the driving force of the fan for sucking the outside air is lowered, which is higher than the normal rotation speed. The duration detected in step S20 is compared with the reference time (S21), and when the detected time is less than or equal to the reference time, the fan motor 300 is rotated normally (S19). When the detected time is greater than or equal to the reference time, the display 500 is displayed. Display filter replacement time through (S22).

상기한 바와 같이, 본 발명은 각각의 풍속을 검출하기 위한 풍압센서를 사용하지 않아 원가절감의 효과 있으며, 팬 모터의 회전속도와 모터 회전시간을 이용하여 누적된 필터의 사용시간을 산출하고, 각각의 풍속별로 필터교환이 필요한 풍압에서의 팬 모터 속도와 비교함으로써, 보다 정확한 필터 교환시기를 판단할 수 있는 장점이 있으며, 효율적으로 필터를 사용할 수 있는 효과가 있다.As described above, the present invention does not use the wind pressure sensor for detecting the respective wind speed, thereby reducing the cost, and calculating the use time of the accumulated filter using the rotation speed and the motor rotation time of the fan motor, respectively. By comparing with the fan motor speed at the wind pressure that needs to replace the filter for each wind speed, there is an advantage that can determine the more accurate filter replacement time, there is an effect that can use the filter efficiently.

이상에서는, 본 발명을 특정의 바람직한 실시예에 대해서 도시하고 설명하였다. 그러나, 본 발명은 상술한 실시예에만 한정되는 것은 아니며, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 이하의 특허청구범위에 기재된 본 발명의 기술적 사상의 요지를 벗어남이 없이 얼마든지 다양하게 변경 실시할 수 있을 것이다.In the above, the present invention has been illustrated and described with respect to certain preferred embodiments. However, the present invention is not limited only to the above-described embodiments, and those skilled in the art to which the present invention pertains may vary without departing from the spirit of the technical idea of the present invention described in the claims below. It will be possible to carry out the change.

Claims (1)

공기 청정기의 필터 교환시기를 판단하는 방법으로서,As a method of determining the filter replacement time of the air cleaner, 팬 모터의 회전을 검출하여 팬 모터의 회전속도와 회전시간의 곱을 이용하여 필터의 누적 사용시간을 산출하는 단계;Detecting a rotation of the fan motor and calculating a cumulative use time of the filter by using a product of the rotation speed of the fan motor and the rotation time; 상기 필터의 누적 사용시간을 기준시간과 비교하여 기준시간 이하인 경우 팬 모터를 정상 회전하고, 상기 필터의 누적 사용시간이 기준시간 이상인 경우 팬 모터의 회전속도를 산출하는 단계;Comparing the cumulative usage time of the filter with a reference time to normal rotation of the fan motor, and calculating the rotation speed of the fan motor when the cumulative usage time of the filter is more than the reference time; 상기 산출된 팬 모터의 회전속도를 풍속별로 필요한 풍압에서의 기준속도와 비교하여, 산출된 회전속도가 기준속도 이하인 경우 팬 모터를 정상 회전하고, 상기 산출된 팬 모터의 회전속도가 기준속도 이상인 경우 산출된 회전속도가 지속된 시간을 검출하는 단계; 및When the calculated rotational speed of the fan motor is compared with the reference speed at the required wind pressure for each wind speed, when the calculated rotational speed is less than the reference speed, the fan motor is rotated normally, and the calculated rotational speed of the fan motor is greater than the reference speed Detecting a time duration of the calculated rotation speed; And 상기 검출된 지속시간을 기준시간과 비교하여 기준시간 이하인 경우 팬 모터를 정상회전하고, 기준시간 이상인 경우 디스플레이부에 필터 교환을 표시하는 단계를 포함하는 필터 교환시기를 판단하는 방법.And comparing the detected duration with a reference time when the fan motor rotates normally, and when the reference time is longer than the reference time, displaying a filter replacement on a display unit.
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