WO2015186879A1 - Air purifier, method for determining time to replace filter thereof, and device and method for determining filer replacement time pressure differential therefor - Google Patents

Air purifier, method for determining time to replace filter thereof, and device and method for determining filer replacement time pressure differential therefor Download PDF

Info

Publication number
WO2015186879A1
WO2015186879A1 PCT/KR2014/012306 KR2014012306W WO2015186879A1 WO 2015186879 A1 WO2015186879 A1 WO 2015186879A1 KR 2014012306 W KR2014012306 W KR 2014012306W WO 2015186879 A1 WO2015186879 A1 WO 2015186879A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
differential pressure
replacement time
initial
flow rate
Prior art date
Application number
PCT/KR2014/012306
Other languages
French (fr)
Korean (ko)
Inventor
조영건
백주현
서인석
윤성진
단철순
강상우
김종완
Original Assignee
코웨이 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020140067454A external-priority patent/KR20150139664A/en
Priority claimed from KR1020140098365A external-priority patent/KR101957686B1/en
Priority claimed from KR1020140178074A external-priority patent/KR20160016504A/en
Application filed by 코웨이 주식회사 filed Critical 코웨이 주식회사
Priority to MYPI2016704466A priority Critical patent/MY182169A/en
Priority to US15/314,530 priority patent/US10188976B2/en
Priority to JP2016571312A priority patent/JP6419218B2/en
Priority to CN201480079532.7A priority patent/CN106457115B/en
Publication of WO2015186879A1 publication Critical patent/WO2015186879A1/en

Links

Images

Classifications

    • 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

Definitions

  • the present application relates to an air purifier, a filter replacement time determination method thereof, and a filter replacement time differential pressure determination device and method therefor.
  • an air purifier is a device for purifying indoor air contaminated by dust and bacteria through dust collection, sterilization, and deodorization, and includes a plurality of filters to purify the indoor air contaminated.
  • the conventional air purifier determines the filter replacement time depending on the operation time. That is, when the operation time is counted and the accumulated operation time reaches the preset time, the filter replacement time is displayed to allow the user to replace the filter. As such, the conventional air purifier has a problem that it is difficult to replace the filter in a timely manner because the filter is replaced depending on the operation time, although the filter replacement time varies depending on the environment in which the air purifier is installed.
  • Air purifier for an embodiment of the present invention, the memory for storing the flow-differential pressure correlation graph for each use state of the filter; A differential pressure sensor for measuring a differential pressure that is a pressure difference between the front end and the rear end of the filter; And replacing the filter according to a result of matching the differential pressure of the filter measured by the differential pressure sensor and a flow rate of air flowing into the filter when measuring the differential pressure with a flow-differential pressure correlation graph for each use state at predetermined intervals. It may include a filter replacement time management unit for determining the time.
  • Method for determining the filter replacement time of the air purifier storing the flow-differential pressure correlation graph for each use state of the filter; Measuring the differential pressure of the filter at predetermined intervals; And determining the replacement time of the filter based on a result of matching the differential pressure of the filter measured at predetermined periods and the flow rate of air flowing into the filter when the differential pressure is measured with the flow-differential pressure correlation graph for each use state. It may include.
  • Filter replacement time differential pressure determination apparatus for an air purifier according to an embodiment of the present invention
  • the filtering performance measurement unit for measuring the filtering performance of the filter to be tested at each predetermined period
  • the replacement timing state of the filter to be tested when the filtering performance of the filter to be measured measured at each predetermined period is equal to the initial filtering performance of the filter to be compared with the filter to be downgraded by a predetermined step than the filter to be tested.
  • Differential pressure measuring unit for measuring the differential pressure of the;
  • a filter replacement timing differential pressure determining unit configured to determine a differential pressure of the filter replacement timing for the filter to be tested based on the differential pressure in the replacement timing state.
  • a filter replacement time differential pressure determining method for an air purifier may include measuring filtering performance of a filter to be tested at predetermined intervals; When the filtering performance of the test target filter measured at the predetermined period is equal to the initial filtering performance of the comparison target filter having the performance downgraded by a predetermined step than the test target filter, the replacement timing of the test target filter Measuring the differential pressure of the state; And determining the differential pressure of the filter replacement time for the test target filter based on the differential pressure of the replacement timing state of the test target filter.
  • the filter replacement time can be determined by determining the filter replacement time based on the flow-differential pressure correlation according to the use condition of the filter, and by outputting an alarm to remind the user, There is an advantage that can be replaced.
  • FIG. 1 is a block diagram showing the configuration of an air purifier according to an embodiment of the present invention.
  • FIG. 2 is a flow chart showing a filter replacement time determination method of the air purifier according to an embodiment of the present invention.
  • FIG. 3 is an exemplary diagram illustrating a flow rate-differential pressure correlation graph previously stored in a memory of an air purifier according to an exemplary embodiment of the present invention.
  • FIG. 4 is a block diagram showing the configuration of a filter replacement time differential pressure determining device for an air purifier according to an embodiment of the present invention.
  • FIG. 5 is a flowchart illustrating a method of determining a differential pressure of filter replacement time for an air purifier according to an embodiment of the present invention.
  • FIG. 1 is a block diagram showing the configuration of an air purifier according to an embodiment of the present invention.
  • the air purifier 100 includes a control unit 110, a memory 120, an input unit 130, a display unit 140, a filter replacement time managing unit 150, and a differential pressure.
  • the sensor 160 and the alarm unit 170 are included.
  • the controller 110 controls the overall operation of the air purifier and may be implemented by hardware such as a processor. In addition, the controller 110 may be integrally implemented with the filter replacement time manager 150 to be described later.
  • the controller 110 processes a function for outputting an alarm so that a user recognizes a filter replacement time determined based on the differential pressure of the filter measured by the differential pressure sensor 160.
  • the memory 120 stores microcode and various reference data of a program for processing and control of the controller 110, temporary data generated during execution of various programs, and various updatable storage data.
  • the memory 120 may store a flow-differential pressure correlation graph for each of the at least one filter obtained through experiments at the manufacturing stage.
  • the memory 120 pre-stores the differential pressure of the filter replacement time determined based on the differential pressure when the performance of the filter is downgraded by a predetermined step.
  • the flow rate is fixed by measuring the differential pressure of the filter while adjusting the flow rate of the air flowing into the filter to be a preset flow rate, only the differential pressure at the time of replacement of the filter determined based on the differential pressure for each use state needs to be stored. .
  • the input unit 130 may include a plurality of function buttons, and provides button input data corresponding to a button input by a user to the controller 110.
  • the functions of the input unit 130 and the display unit 140 may be performed by a touch screen unit (not shown), the touch screen unit (not shown) is a touch screen input through the user's screen touch and through the touch screen Responsible for graphical display.
  • the display unit 140 displays status information generated during the operation of the air purifier, limited number of characters, a large amount of moving images and still images, and the like.
  • the display unit 140 may use a liquid crystal display (LCD).
  • the filter replacement time management unit 150 filters the differential pressure of the filter periodically and the flow rate of the air flowing into the filter during the differential pressure measurement according to a result of matching the flow-differential pressure correlation graph for each use state stored in the memory 120. Decide when to replace.
  • the flow rate of the air flowing into the filter is measured at the time of measuring the differential pressure of the filter by a flow sensor (not shown) which is installed at the front of the filter of the air purifier 100 and measures the flow rate of the air flowing into the filter. It may be the flow rate of or may be the flow rate of the predetermined air according to the air flow rate step of the air purifier 100 at the time of measuring the differential pressure of the filter.
  • the filter replacement time management unit 150 if the flow-differential pressure-correlation graph for each state of use for the plurality of filters in the memory 120 is stored in advance, to the initial differential pressure and the filter measured in the initial installation step Select one of a plurality of graphs pre-stored in the memory 120 based on the flow rate of the incoming air, and then, depending on whether the differential pressure measured periodically and the flow rate of the air flowing into the filter match the selected graph Determine when to replace.
  • the filter replacement time management unit 150 measures the initial differential pressure through the differential pressure sensor 160 in the initial installation stage, and the flow-differential pressure correlation graph of the plurality of filters in the initial use state previously stored in the memory 120. Based on the above, after checking one filter having a graph matching the measured initial differential pressure and the flow rate of the air flowing into the filter during the initial differential pressure measurement, the flow-differential pressure correlation graph of the replacement filter state of the identified filter is selected. do.
  • the filter replacement time manager 150 periodically measures the differential pressure of the filter through the differential pressure sensor 160, and periodically measures the differential pressure and the flow rate of the air flowing into the filter during the differential pressure measurement. Check if it matches the flow-differential pressure correlation graph.
  • the filter replacement time management unit 150 matches the differential pressure measured periodically and the flow rate of the air flowing into the filter during the differential pressure measurement match the flow-differential pressure correlation graph of the selected replacement time state, the internal filter replacement time is determined. Determine that it has arrived, and outputs alarm information informing the filter replacement time through the alarm unit 170.
  • the filter replacement time management unit 150 if the flow rate of the differential pressure measured periodically and the flow rate of the air flowing into the filter during the differential pressure measurement does not match the flow-differential pressure correlation graph of the selected replacement time state, the internal filter replacement time is Decide that you have not arrived.
  • the differential pressure of the filter may be measured while the flow rate of the air flowing into the filter is adjusted to be a preset flow rate.
  • the filter replacement time manager 150 may periodically measure the differential pressure of the filter. And the filter replacement time is determined according to the result of comparing the differential pressure of the filter replacement time stored in the memory 120 based on the initial differential pressure.
  • the differential pressure sensor 160 is provided at both ends (ie, front and rear ends) of the internal filter to measure the differential pressure of the internal filter.
  • the differential pressure means the pressure difference between the front end and the rear end of the filter. That is, the differential pressure sensor 160 is installed on one side (front side) of the filter through which the unfiltered air flows in and the other side (back side) of the filter through which the filtered air flows out, and measured at the front end of the filter through the differential pressure sensor 160.
  • the differential pressure of the filter can be measured by calculating the difference between the pressure measured and the pressure measured at the rear end.
  • the alarm unit 170 notifies the user of the measurement result for the differential pressure, the filter replacement time, and the like.
  • the alarm unit 170 may output an alarm so that a user may recognize a measurement result of the differential pressure, a filter replacement time, and the like through a human sense such as vision and hearing.
  • the alarm unit 170 may output a warning sound or flash a warning light by using a buzzer or a light emitting diode (LED), or guide the display through the display unit 140 to measure a differential pressure and a filter. An alarm can be output to notify the time of replacement.
  • a buzzer or a light emitting diode LED
  • An alarm can be output to notify the time of replacement.
  • FIG. 2 is a flow chart showing a filter replacement time determination method of the air purifier according to an embodiment of the present invention.
  • the air purifier previously stores a flow-differential pressure correlation graph for each of at least one filter in a memory.
  • the flow-differential pressure correlation graph for each use state is a state in which the air volume is mechanically set to a predetermined stage (for example, three to five stage air flows) for at least one filter through experiments at the manufacturing stage.
  • the graph shows the correlation between the flow rate and the differential pressure according to the use condition of the filter.
  • the filter is used in the initial use state (100% of the inflow flow rate), the intermediate use state (90% of the discharge flow rate in the initial use state is discharged), and the replacement timing state (in the initial use state). 80% of the discharge flow rate is discharged).
  • FIG. 3 An example of the flow-differential pressure correlation graph for each use state obtained as described above is illustrated in FIG. 3.
  • the differential pressure of the filter may be measured while the flow rate of the air flowing into the filter is adjusted to be a preset flow rate.
  • the air purifier may be based on the differential pressure of each filter used in operation 201.
  • the differential pressure of the determined filter replacement time is stored in the memory.
  • the air purifier measures the initial differential pressure of the filter while operating at a predetermined air volume (for example, three-stage air volume) in the initial installation stage in step 203, and provides alarm information informing the initial measurement result as necessary. You can also output a predetermined air volume (for example, three-stage air volume) in the initial installation stage in step 203, and provides alarm information informing the initial measurement result as necessary. You can also output a predetermined air volume (for example, three-stage air volume) in the initial installation stage in step 203, and provides alarm information informing the initial measurement result as necessary. You can also output
  • a predetermined air volume for example, three-stage air volume
  • the air purifier is matched to the initial measurement result, that is, flows into the filter when the measured initial differential pressure and the initial differential pressure are measured based on the flow-differential pressure correlation graph of the plurality of filters in the initial use state previously stored in the memory in step 205.
  • the flow-differential pressure correlation graph of the replacement filter state of the identified filter is selected.
  • the air purifier regards the internal filter as the same filter as the identified filter.
  • Step 205 is performed when the flow rate-differential pressure correlation graph for the plurality of filters is stored in the memory, and may be omitted when only the flow rate-differential pressure correlation graph corresponding to the internal filter is stored in the memory.
  • the air purifier measures the differential pressure of the filter in a state in which the air purifier is operated at a predetermined air volume at a predetermined cycle.
  • the air purifier may output alarm information informing of the measurement result.
  • the air purifier has a flow rate-differential pressure correlation in which the flow rate of the air flowing into the filter at the time of measuring the differential pressure of the filter measured in the state of operating the air flow at the predetermined stage at a predetermined cycle in step 209 is selected. Check if the graph matches. That is, it is checked whether the differential pressure measured at a predetermined period and the flow rate of air at the differential pressure measurement match any point on the flow-differential pressure correlation graph in the selected replacement timing state.
  • the air purifier determines that the replacement time of the filter has arrived in step 211, and outputs alarm information indicating the filter replacement time.
  • the air purifier determines that the replacement time of the filter has not arrived, and returns to step 207 to repeat the following steps.
  • the differential pressure of the filter may be measured while adjusting the flow rate of the air flowing into the filter to be a preset flow rate, in which case, the air purifier may measure the initial differential pressure and the differential pressure of the filter measured at a predetermined period. Based on the result of the comparison with the differential pressure of the pre-stored filter replacement time, it is determined whether to replace the filter.
  • the air purifier then terminates the algorithm according to the invention.
  • the air purifier when the internal filter is replaced by the user according to the output of the alarm information indicating the filter replacement time in step 211, the air purifier returns to step 203 to measure the initial differential pressure at a predetermined air flow rate, and the initial measurement result is displayed. After outputting the notifying alarm information, the following steps may be repeated.
  • FIG. 4 is a block diagram showing the configuration of a filter replacement time differential pressure determining device for an air purifier according to an embodiment of the present invention.
  • the filter replacement time differential pressure determining device 400 includes a filtering performance measuring unit 410, a differential pressure measuring unit 420, and a filter replacement time differential pressure determining unit 430. Based on the differential pressure at the time when the filtering performance of the filter to be tested is downgraded by a predetermined step, the differential pressure of the filter replacement time is determined and stored in a memory (not shown) provided in the air purifier.
  • the filtering performance of the filter can be applied to remove performance.
  • CA Clean Air
  • CAD Clean Air Delivery Rate
  • JEMA Japan Electrical Manufacturers' Association
  • the air purifier's filter designed to cover an area of 15 equilibrium will be contaminated over time and will have the same performance as the filter covering an area of 13 equilibrium.
  • the differential pressure at the time of filter replacement can be determined.
  • the filtering performance measuring unit 410 measures the initial filtering performance of the comparison target filter having the performance downgraded by a predetermined step than the test target filter and the test target filter.
  • the filtering performance measuring unit 410 periodically measures the filtering performance of the test target filter.
  • the differential pressure measuring unit 420 measures the initial differential pressure of the test target filter at the time when the initial filtering performance of the test target filter is measured by the filtering performance measuring unit 410.
  • the differential pressure measuring unit 420 may perform the initial filtering of the comparison target filter having the filtering performance of the test target filter periodically measured by the filtering performance measuring unit 410 having a performance downgraded by a predetermined step than the test target filter. Measure the differential pressure of the filter under test (ie the differential pressure at the time of replacement) at the same time as the performance.
  • the differential pressure measuring unit 420 measures the differential pressure of the filter to be tested in a state in which the flow rate of the air flowing into the test object filter is adjusted to be a preset flow rate.
  • the filter replacement time differential pressure determining unit 430 may determine the differential pressure of the filter replacement time for the filter to be tested (for example, the initial differential pressure based on the initial differential pressure measured by the differential pressure measurement unit 420 and the differential pressure in the replacement timing state). The difference in the differential pressure in the replacement timing state. Accordingly, the air purifier provided with the filter to be tested may determine the replacement time of the internal filter based on the differential pressure of the filter replacement time determined by the filter replacement time differential pressure determining device 400.
  • the above-described filter replacement time differential pressure determining device 400 may be included in the air purifier provided with the filter to be tested, or may be implemented as a separate device associated with the air purifier.
  • FIG. 5 is a flowchart illustrating a method of determining a differential pressure of filter replacement time for an air purifier according to an embodiment of the present invention.
  • the filter replacement time differential pressure determination method illustrated in FIG. 5 may be performed by the filter replacement time differential pressure determination apparatus illustrated in FIG. 4.
  • the differential pressure determining device for inserting a filter inserts an unused test target filter and a foreign material having a size of 0.3 into a first experimental chamber having a predetermined size (for example, 30 m 3 ) and replaces a fan ( FAN) is used to maintain a predetermined air flow rate (e.g., three-stage air flow rate), so that the initial filtering performance of the filter under test, for example, foreign substances having a size of 0.3, becomes less than 1/3 of the initial concentration.
  • the time T1 is measured, and the initial differential pressure P1 of the filter to be tested at that time is measured.
  • the filter replacement time differential pressure determining device inserts an unused comparison target filter having a performance of downgrading by a predetermined stage than the test target filter in the second experimental chamber of the same size and a foreign matter of 0.3 size in step 503, and removes a fan.
  • the initial filtering performance of the filter to be compared for example, the time T2 at which the foreign matter of 0.3 size becomes 1/3 or less of the initial concentration is measured.
  • the filter to be tested and the filter to be compared may be, for example, filters of an air purifier designed to cover a use area of 15 equilibrium and 13 equilibrium, respectively.
  • the filter replacement time differential pressure determining device periodically inserts a foreign material having a size of 0.3 into the first experimental chamber in step 505 and periodically measures the filtering performance of the filter to be tested.
  • the filter under test is contaminated over time due to the periodic insertion of foreign substances, and thus the filtering performance of the periodically measured test filter decreases gradually compared to the initial filtering performance.
  • the filter replacement time differential pressure determining device determines when the filtering performance of the filter to be tested periodically measured in step 507 is equal to the initial filtering performance of the filter to be compared, for example, when a foreign substance having a size of 0.3 is 1/3 of the initial concentration.
  • the time when the following time becomes T2 is determined, and the differential pressure P2 in the state of replacement time of the filter under test at that time is measured.
  • the filter replacement time differential pressure determining device determines the differential pressure of the filter replacement time for the filter to be tested (for example, the initial differential pressure P1 and the replacement timing state) based on the differential pressure P2 of the replacement timing state and the initial differential pressure P1 measured in step 509. Difference of the differential pressure P2).
  • the differential pressure of the filter replacement time determined in this way is stored in the memory of the air purifier to which the same filter as the filter under test is applied.
  • the filter replacement time differential pressure determining device terminates the algorithm according to the present invention.
  • the method for determining the filter replacement time thereof, and the apparatus and method for determining the filter replacement time differential pressure therefor, the filter replacement is performed based on the correlation between the flow rate and the differential pressure according to the use condition of the filter.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

An air purifier according to an embodiment of the present invention may comprise: a memory for storing a flow rate/pressure differential correlation graph with regard to each filter utilization state; a pressure differential sensor for measuring a pressure differential, which is a difference in pressure between the front and rear ends of the filter; and a filer replacement time management unit for determining the time to replace the filter according to a result of matching a pressure differential of the filter, which is measured by the pressure differential sensor at a preset cycle, and the flow rate of air flowing into the filter during pressure differential measurement with the flow rate/pressure differential correlation graph for each utilization state.

Description

공기정화기, 이의 필터교체시기 결정 방법 및 이를 위한 필터교체시기 차압 결정 장치 및 방법Air purifier, Determination method of filter replacement thereof and apparatus and method for determining differential pressure of filter replacement time therefor
본 출원은 공기정화기, 이의 필터교체시기 결정 방법 및 이를 위한 필터교체시기 차압 결정 장치 및 방법에 관한 것이다.The present application relates to an air purifier, a filter replacement time determination method thereof, and a filter replacement time differential pressure determination device and method therefor.
일반적으로 공기정화기는 먼지 및 세균 등에 의해 오염된 실내의 공기를 집진, 살균 및 탈취 작용 등을 통하여 정화하는 장치로서, 오염된 실내의 공기를 정화하기 위해 다수의 필터를 구비한다. In general, an air purifier is a device for purifying indoor air contaminated by dust and bacteria through dust collection, sterilization, and deodorization, and includes a plurality of filters to purify the indoor air contaminated.
공기정화기의 효율을 높이고 수명을 연장시키기 위해서는 주기적인 필터 관리 및 교체가 필요하다. 종래 공기정화기는 운전시간에 의존하여 필터교체시기를 결정한다. 즉, 운전시간을 카운트하고 누적 운전시간이 미리 설정된 시간에 도달하면 필터의 교체시기를 표시하여 사용자로 하여금 필터를 교체하도록 하고 있다. 이와 같이, 종래 공기정화기는 공기정화기를 설치한 환경에 따라 필터의 교체시기가 달라짐에도 불구하고 운전시간에 의존하여 필터를 교체하므로 필터를 적기에 교체하기 어려운 문제점이 있다. Periodic filter management and replacement are necessary to increase the efficiency and extend the life of air cleaners. The conventional air purifier determines the filter replacement time depending on the operation time. That is, when the operation time is counted and the accumulated operation time reaches the preset time, the filter replacement time is displayed to allow the user to replace the filter. As such, the conventional air purifier has a problem that it is difficult to replace the filter in a timely manner because the filter is replaced depending on the operation time, although the filter replacement time varies depending on the environment in which the air purifier is installed.
당해 기술분야에서는, 정확한 필터교체시기를 결정하여 사용자로 하여금 공기정화를 위한 필터를 적기에 교체하도록 하기 위한 방안이 요구되고 있다.In the art, there is a need for a method for determining an accurate filter replacement time so that the user can replace the filter for air purification in a timely manner.
본 발명의 일 실시 형태에 따른 공기정화기는, 필터의 사용상태별 유량-차압 상관관계 그래프를 저장하는 메모리; 상기 필터의 전단과 후단의 압력차인 차압을 측정하는 차압 센서; 및 기 설정된 주기마다 상기 차압 센서에 의해 측정된 상기 필터의 차압과, 차압 측정시 상기 필터로 유입되는 공기의 유량을 상기 사용상태별 유량-차압 상관관계 그래프와 매칭시킨 결과에 따라 상기 필터의 교체시기를 결정하는 필터교체시기 관리부를 포함할 수 있다. Air purifier according to an embodiment of the present invention, the memory for storing the flow-differential pressure correlation graph for each use state of the filter; A differential pressure sensor for measuring a differential pressure that is a pressure difference between the front end and the rear end of the filter; And replacing the filter according to a result of matching the differential pressure of the filter measured by the differential pressure sensor and a flow rate of air flowing into the filter when measuring the differential pressure with a flow-differential pressure correlation graph for each use state at predetermined intervals. It may include a filter replacement time management unit for determining the time.
본 발명의 일 실시 형태에 따른 공기정화기의 필터교체시기 결정 방법은, 필터의 사용상태별 유량-차압 상관관계 그래프를 저장하는 단계; 기 설정된 주기마다 상기 필터의 차압을 측정하는 단계; 및 기 설정된 주기마다 측정된 상기 필터의 차압과, 차압 측정시 상기 필터로 유입되는 공기의 유량을 상기 사용상태별 유량-차압 상관관계 그래프와 매칭시킨 결과에 따라 상기 필터의 교체시기를 결정하는 단계를 포함할 수 있다. Method for determining the filter replacement time of the air purifier according to an embodiment of the present invention, storing the flow-differential pressure correlation graph for each use state of the filter; Measuring the differential pressure of the filter at predetermined intervals; And determining the replacement time of the filter based on a result of matching the differential pressure of the filter measured at predetermined periods and the flow rate of air flowing into the filter when the differential pressure is measured with the flow-differential pressure correlation graph for each use state. It may include.
본 발명의 일 실시 형태에 따른 공기정화기를 위한 필터교체시기 차압 결정 장치는, 기 설정된 주기마다 테스트 대상 필터의 필터링 성능을 측정하는 필터링 성능 측정부; 상기 기 설정된 주기마다 측정된 상기 테스트 대상 필터의 필터링 성능이 상기 테스트 대상 필터보다 미리 정해진 단계만큼 다운그레이드된 성능을 가지는 비교 대상 필터의 초기 필터링 성능과 동일해지는 시점의 상기 테스트 대상 필터의 교체시기상태의 차압을 측정하는 차압 측정부; 및 상기 교체시기상태의 차압을 기초로 상기 테스트 대상 필터에 대한 필터교체시기의 차압을 결정하는 필터교체시기 차압 결정부를 포함할 수 있다.Filter replacement time differential pressure determination apparatus for an air purifier according to an embodiment of the present invention, the filtering performance measurement unit for measuring the filtering performance of the filter to be tested at each predetermined period; The replacement timing state of the filter to be tested when the filtering performance of the filter to be measured measured at each predetermined period is equal to the initial filtering performance of the filter to be compared with the filter to be downgraded by a predetermined step than the filter to be tested. Differential pressure measuring unit for measuring the differential pressure of the; And a filter replacement timing differential pressure determining unit configured to determine a differential pressure of the filter replacement timing for the filter to be tested based on the differential pressure in the replacement timing state.
본 발명의 일 실시 형태에 따른 공기정화기를 위한 필터교체시기 차압 결정 방법은, 기 설정된 주기마다 테스트 대상 필터의 필터링 성능을 측정하는 단계; 상기 기 설정된 주기마다 측정된 상기 테스트 대상 필터의 필터링 성능이, 상기 테스트 대상 필터보다 미리 정해진 단계만큼 다운그레이드된 성능을 가지는 비교 대상 필터의 초기 필터링 성능과 동일해지는 시점의 상기 테스트 대상 필터의 교체시기상태의 차압을 측정하는 단계; 및 상기 테스트 대상 필터의 교체시기상태의 차압을 기반으로 상기 테스트 대상 필터에 대한 필터교체시기의 차압을 결정하는 단계를 포함할 수 있다.A filter replacement time differential pressure determining method for an air purifier according to an embodiment of the present invention may include measuring filtering performance of a filter to be tested at predetermined intervals; When the filtering performance of the test target filter measured at the predetermined period is equal to the initial filtering performance of the comparison target filter having the performance downgraded by a predetermined step than the test target filter, the replacement timing of the test target filter Measuring the differential pressure of the state; And determining the differential pressure of the filter replacement time for the test target filter based on the differential pressure of the replacement timing state of the test target filter.
덧붙여 상기한 과제의 해결 수단은, 본 발명의 특징을 모두 열거한 것은 아니다. 본 발명의 다양한 특징과 그에 따른 장점과 효과는 아래의 구체적인 실시 형태를 참조하여 보다 상세하게 이해될 수 있을 것이다. In addition, the solution of the said subject does not enumerate all the characteristics of this invention. Various features of the present invention and the advantages and effects thereof may be understood in more detail with reference to the following specific embodiments.
필터의 사용상태에 따른 유량-차압의 상관관계를 기반으로 필터교체시기를 결정함으로써 정확한 필터교체시기를 결정할 수 있으며, 사용자가 이를 인지하도록 알람을 출력함으로써 사용자로 하여금 공기정화를 위한 필터를 적기에 교체하도록 할 수 있는 이점이 있다. The filter replacement time can be determined by determining the filter replacement time based on the flow-differential pressure correlation according to the use condition of the filter, and by outputting an alarm to remind the user, There is an advantage that can be replaced.
도 1은 본 발명의 일 실시 형태에 따른 공기정화기의 구성을 도시한 블록도이다.1 is a block diagram showing the configuration of an air purifier according to an embodiment of the present invention.
도 2는 본 발명의 일 실시 형태에 따른 공기정화기의 필터교체시기 결정 방법을 도시한 흐름도이다.2 is a flow chart showing a filter replacement time determination method of the air purifier according to an embodiment of the present invention.
도 3은 본 발명의 일 실시 형태에 따른 공기정화기의 메모리에 기 저장되는 유량-차압 상관관계 그래프를 도시한 예시도이다. 3 is an exemplary diagram illustrating a flow rate-differential pressure correlation graph previously stored in a memory of an air purifier according to an exemplary embodiment of the present invention.
도 4는 본 발명의 일 실시 형태에 따른 공기정화기를 위한 필터교체시기 차압 결정 장치의 구성을 도시한 블록도이다.4 is a block diagram showing the configuration of a filter replacement time differential pressure determining device for an air purifier according to an embodiment of the present invention.
도 5는 본 발명의 일 실시 형태에 따른 공기정화기를 위한 필터교체시기 차압 결정 방법을 도시한 흐름도이다.5 is a flowchart illustrating a method of determining a differential pressure of filter replacement time for an air purifier according to an embodiment of the present invention.
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시 형태들을 설명한다. 그러나, 본 발명의 실시형태는 여러 가지 다른 형태로 변형될 수 있으며, 본 발명의 범위가 이하 설명하는 실시 형태로 한정되는 것은 아니다. 또한, 본 발명의 실시형태는 당해 기술분야에서 평균적인 지식을 가진 자에게 본 발명을 더욱 완전하게 설명하기 위해서 제공되는 것이다. 도면에서 요소들의 형상 및 크기 등은 보다 명확한 설명을 위해 과장될 수 있다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, embodiments of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. In addition, the embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. Shape and size of the elements in the drawings may be exaggerated for more clear description.
도 1은 본 발명의 일 실시 형태에 따른 공기정화기의 구성을 도시한 블록도이다.1 is a block diagram showing the configuration of an air purifier according to an embodiment of the present invention.
도 1을 참조하면, 본 발명의 일 실시 형태에 따른 공기정화기(100)는, 제어부(110), 메모리(120), 입력부(130), 표시부(140), 필터교체시기 관리부(150), 차압 센서(160) 및 알람부(170)를 포함한다. Referring to FIG. 1, the air purifier 100 according to an embodiment of the present invention includes a control unit 110, a memory 120, an input unit 130, a display unit 140, a filter replacement time managing unit 150, and a differential pressure. The sensor 160 and the alarm unit 170 are included.
제어부(110)는, 공기정화기의 전반적인 동작을 제어하며, 프로세서 등의 하드웨어로 구현될 수 있다. 또한, 제어부(110)는 후술하는 필터교체시기 관리부(150)와 일체로 통합되어 구현될 수도 있다.The controller 110 controls the overall operation of the air purifier and may be implemented by hardware such as a processor. In addition, the controller 110 may be integrally implemented with the filter replacement time manager 150 to be described later.
예를 들어, 제어부(110)는 차압 센서(160)에 의해 측정된 필터의 차압을 기반으로 결정된 필터교체시기를 사용자가 인지하도록 알람을 출력하기 위한 기능을 처리한다.For example, the controller 110 processes a function for outputting an alarm so that a user recognizes a filter replacement time determined based on the differential pressure of the filter measured by the differential pressure sensor 160.
메모리(120)는, 제어부(110)의 처리 및 제어를 위한 프로그램의 마이크로코드와 각종 참조 데이터, 각종 프로그램 수행 중에 발생하는 일시적인 데이터, 갱신 가능한 각종 보관용 데이터를 저장한다. The memory 120 stores microcode and various reference data of a program for processing and control of the controller 110, temporary data generated during execution of various programs, and various updatable storage data.
일 실시예에 따르면, 메모리(120)는, 제조 단계에서 실험을 통해 획득된 적어도 하나의 필터에 대한 사용상태별 유량-차압 상관관계 그래프를 기 저장한다. According to an embodiment, the memory 120 may store a flow-differential pressure correlation graph for each of the at least one filter obtained through experiments at the manufacturing stage.
다른 실시예에 따르면, 메모리(120)는 필터의 성능이 미리 정해진 단계만큼 다운그레이드 되는 시점의 차압을 기반으로 결정된 필터교체시기의 차압을 기 저장한다. 이 경우, 필터로 유입되는 공기의 유량이 기 설정된 유량이 되도록 조절한 상태에서 필터의 차압을 측정하는 것으로 유량은 고정되어 있으므로, 사용상태별 차압을 기반으로 결정된 필터교체시기의 차압만을 저장하면 된다.According to another embodiment, the memory 120 pre-stores the differential pressure of the filter replacement time determined based on the differential pressure when the performance of the filter is downgraded by a predetermined step. In this case, since the flow rate is fixed by measuring the differential pressure of the filter while adjusting the flow rate of the air flowing into the filter to be a preset flow rate, only the differential pressure at the time of replacement of the filter determined based on the differential pressure for each use state needs to be stored. .
입력부(130)는, 다수의 기능버튼들로 구성될 수 있으며, 사용자가 입력하는 버튼에 대응하는 버튼입력 데이터를 제어부(110)로 제공한다.The input unit 130 may include a plurality of function buttons, and provides button input data corresponding to a button input by a user to the controller 110.
여기서, 입력부(130)와 표시부(140)의 기능은 터치스크린부(미도시)에 의해 수행될 수 있으며, 터치스크린부(미도시)는 사용자의 화면 터치를 통한 터치스크린 입력과 터치스크린을 통한 그래픽 화면 출력을 담당한다.Here, the functions of the input unit 130 and the display unit 140 may be performed by a touch screen unit (not shown), the touch screen unit (not shown) is a touch screen input through the user's screen touch and through the touch screen Responsible for graphical display.
표시부(140)는, 공기정화기의 동작 중에 발생되는 상태 정보, 제한된 숫자의 문자들, 다량의 동영상 및 정지영상 등을 디스플레이한다. 표시부(140)는 액정 디스플레이 장치(LCD: Liquid Crystal Display)를 사용할 수 있다. The display unit 140 displays status information generated during the operation of the air purifier, limited number of characters, a large amount of moving images and still images, and the like. The display unit 140 may use a liquid crystal display (LCD).
필터교체시기 관리부(150)는, 주기적으로 측정된 필터의 차압 및 차압 측정시 필터로 유입되는 공기의 유량을 메모리(120)에 저장된 사용상태별 유량-차압 상관관계 그래프에 매칭시킨 결과에 따라 필터의 교체시기를 결정한다. 여기서, 필터로 유입되는 공기의 유량은, 공기정화기(100)의 필터의 전단에 설치되어 필터로 유입되는 공기의 유량을 측정하는 유량 센서(미도시)에 의해 필터의 차압 측정시에 측정된 공기의 유량이거나, 또는 필터의 차압 측정시에 공기정화기(100)의 풍량 단계에 따라 기 설정된 공기의 유량일 수 있다. The filter replacement time management unit 150 filters the differential pressure of the filter periodically and the flow rate of the air flowing into the filter during the differential pressure measurement according to a result of matching the flow-differential pressure correlation graph for each use state stored in the memory 120. Decide when to replace. Here, the flow rate of the air flowing into the filter is measured at the time of measuring the differential pressure of the filter by a flow sensor (not shown) which is installed at the front of the filter of the air purifier 100 and measures the flow rate of the air flowing into the filter. It may be the flow rate of or may be the flow rate of the predetermined air according to the air flow rate step of the air purifier 100 at the time of measuring the differential pressure of the filter.
일 실시예에 따르면, 필터교체시기 관리부(150)는, 메모리(120)에 복수의 필터에 대한 사용상태별 유량-차압 상관관계 그래프가 기 저장된 경우, 초기 설치 단계에서 측정된 초기 차압과 필터로 유입되는 공기의 유량을 기반으로 메모리(120)에 기 저장된 복수의 그래프 중 하나를 선택하고, 이후, 주기적으로 측정된 차압과 필터로 유입되는 공기의 유량이 선택된 그래프에 매칭되는지 여부에 따라 필터의 교체시기를 결정한다.According to one embodiment, the filter replacement time management unit 150, if the flow-differential pressure-correlation graph for each state of use for the plurality of filters in the memory 120 is stored in advance, to the initial differential pressure and the filter measured in the initial installation step Select one of a plurality of graphs pre-stored in the memory 120 based on the flow rate of the incoming air, and then, depending on whether the differential pressure measured periodically and the flow rate of the air flowing into the filter match the selected graph Determine when to replace.
구체적으로, 필터교체시기 관리부(150)는, 초기 설치 단계에서 차압 센서(160)를 통해 초기 차압을 측정하고, 메모리(120)에 기 저장된 초기사용상태의 복수의 필터의 유량-차압 상관관계 그래프를 기반으로, 측정된 초기 차압과 초기 차압 측정시에 필터로 유입되는 공기의 유량에 매칭되는 그래프를 가지는 하나의 필터를 확인한 후, 확인된 필터의 교체시기상태의 유량-차압 상관관계 그래프를 선택한다. Specifically, the filter replacement time management unit 150 measures the initial differential pressure through the differential pressure sensor 160 in the initial installation stage, and the flow-differential pressure correlation graph of the plurality of filters in the initial use state previously stored in the memory 120. Based on the above, after checking one filter having a graph matching the measured initial differential pressure and the flow rate of the air flowing into the filter during the initial differential pressure measurement, the flow-differential pressure correlation graph of the replacement filter state of the identified filter is selected. do.
이후, 필터교체시기 관리부(150)는, 주기적으로 차압 센서(160)를 통해 필터의 차압을 측정하고, 주기적으로 측정된 차압과 차압 측정시에 필터로 유입되는 공기의 유량이 선택된 교체시기상태의 유량-차압 상관관계 그래프에 매칭되는지 여부를 검사한다. Thereafter, the filter replacement time manager 150 periodically measures the differential pressure of the filter through the differential pressure sensor 160, and periodically measures the differential pressure and the flow rate of the air flowing into the filter during the differential pressure measurement. Check if it matches the flow-differential pressure correlation graph.
이 경우, 필터교체시기 관리부(150)는 주기적으로 측정된 차압과 차압 측정시에 필터로 유입되는 공기의 유량이 선택된 교체시기상태의 유량-차압 상관관계 그래프에 매칭되면, 내부 필터의 교체시기가 도래하였다고 결정하고, 알람부(170)를 통해 필터교체시기를 알리는 알람 정보를 출력한다. 반면, 필터교체시기 관리부(150)는 주기적으로 측정된 차압과 차압 측정시에 필터로 유입되는 공기의 유량이 선택된 교체시기상태의 유량-차압 상관관계 그래프에 매칭되지 않으면, 내부 필터의 교체시기가 도래하지 않았다고 결정한다. In this case, when the filter replacement time management unit 150 matches the differential pressure measured periodically and the flow rate of the air flowing into the filter during the differential pressure measurement match the flow-differential pressure correlation graph of the selected replacement time state, the internal filter replacement time is determined. Determine that it has arrived, and outputs alarm information informing the filter replacement time through the alarm unit 170. On the other hand, the filter replacement time management unit 150, if the flow rate of the differential pressure measured periodically and the flow rate of the air flowing into the filter during the differential pressure measurement does not match the flow-differential pressure correlation graph of the selected replacement time state, the internal filter replacement time is Decide that you have not arrived.
다른 실시예에 따르면, 필터로 유입되는 공기의 유량이 기 설정된 유량이 되도록 조절한 상태에서 필터의 차압을 측정할 수 있는데, 이 경우, 필터교체시기 관리부(150)는 주기적으로 측정된 필터의 차압과 초기 차압을 기초로 메모리(120)에 저장된 필터교체시기의 차압과 비교한 결과에 따라 필터의 교체시기를 결정한다.According to another embodiment, the differential pressure of the filter may be measured while the flow rate of the air flowing into the filter is adjusted to be a preset flow rate. In this case, the filter replacement time manager 150 may periodically measure the differential pressure of the filter. And the filter replacement time is determined according to the result of comparing the differential pressure of the filter replacement time stored in the memory 120 based on the initial differential pressure.
차압 센서(160)는, 내부 필터의 양단(즉, 전단과 후단)에 설치되어 내부 필터의 차압을 측정한다. 여기서, 차압은 필터의 전단과 후단의 압력차를 의미한다. 즉, 필터링되지 않은 공기가 유입되는 필터의 일면(전단)과 필터링된 공기가 유출되는 필터의 타면(후단)에 차압 센서(160)를 설치하고, 차압 센서(160)를 통해 필터의 전단에서 측정된 압력과 후단에서 측정된 압력 간 차이를 계산하여 필터의 차압을 측정할 수 있다.The differential pressure sensor 160 is provided at both ends (ie, front and rear ends) of the internal filter to measure the differential pressure of the internal filter. Here, the differential pressure means the pressure difference between the front end and the rear end of the filter. That is, the differential pressure sensor 160 is installed on one side (front side) of the filter through which the unfiltered air flows in and the other side (back side) of the filter through which the filtered air flows out, and measured at the front end of the filter through the differential pressure sensor 160. The differential pressure of the filter can be measured by calculating the difference between the pressure measured and the pressure measured at the rear end.
알람부(170)는, 사용자에게 차압에 대한 측정 결과, 필터교체시기 등을 알린다. 알람부(170)는, 사용자가 시각 및 청각 등 사람의 감각을 통하여 차압에 대한 측정 결과, 필터교체시기 등을 인지하도록 알람을 출력할 수 있다.  The alarm unit 170 notifies the user of the measurement result for the differential pressure, the filter replacement time, and the like. The alarm unit 170 may output an alarm so that a user may recognize a measurement result of the differential pressure, a filter replacement time, and the like through a human sense such as vision and hearing.
예를 들어, 알람부(170)는 부저 또는 LED(Light Emitting Diode)를 이용하여 경고음을 출력하거나 경고등을 점멸할 수 있으며, 또는 표시부(140)를 통해 안내 표시함으로써, 차압에 대한 측정 결과, 필터교체시기 등을 알리는 알람을 출력할 수 있다. For example, the alarm unit 170 may output a warning sound or flash a warning light by using a buzzer or a light emitting diode (LED), or guide the display through the display unit 140 to measure a differential pressure and a filter. An alarm can be output to notify the time of replacement.
도 2는 본 발명의 일 실시 형태에 따른 공기정화기의 필터교체시기 결정 방법을 도시한 흐름도이다.2 is a flow chart showing a filter replacement time determination method of the air purifier according to an embodiment of the present invention.
도 2를 참조하면, 공기정화기는 201단계에서 적어도 하나의 필터에 대한 사용상태별 유량-차압 상관관계 그래프를 메모리에 기 저장한다. 여기서, 사용상태별 유량-차압 상관관계 그래프는, 제조 단계에서 실험을 통해, 적어도 하나의 필터에 대하여 기계적으로 풍량을 미리 정해진 단계(예를 들어, 3단 내지 5단 풍량)로 설정한 상태에서, 필터의 사용상태에 따른 유량과 차압간의 상관관계를 획득하여 그래프로 도식화한 것이다. 이 경우, 필터의 사용상태는 초기사용상태(유입유량의 100%가 배출되는 상태), 중간사용상태(초기사용상태의 배출유량의 90%이 배출되는 상태), 교체시기상태(초기사용상태의 배출유량의 80%이 배출되는 상태)를 포함할 수 있다. 이와 같이 획득된 사용상태별 유량-차압 상관관계 그래프의 일 예는 도 3에 도시된 바와 같다.Referring to FIG. 2, in operation 201, the air purifier previously stores a flow-differential pressure correlation graph for each of at least one filter in a memory. Here, the flow-differential pressure correlation graph for each use state is a state in which the air volume is mechanically set to a predetermined stage (for example, three to five stage air flows) for at least one filter through experiments at the manufacturing stage. The graph shows the correlation between the flow rate and the differential pressure according to the use condition of the filter. In this case, the filter is used in the initial use state (100% of the inflow flow rate), the intermediate use state (90% of the discharge flow rate in the initial use state is discharged), and the replacement timing state (in the initial use state). 80% of the discharge flow rate is discharged). An example of the flow-differential pressure correlation graph for each use state obtained as described above is illustrated in FIG. 3.
다른 실시예에 따르면, 필터로 유입되는 공기의 유량이 기 설정된 유량이 되도록 조절한 상태에서 필터의 차압을 측정할 수 있는데, 이 경우, 공기정화기는 201단계에서 필터의 사용상태별 차압을 기반으로 결정된 필터교체시기의 차압을 메모리에 기 저장한다.According to another embodiment, the differential pressure of the filter may be measured while the flow rate of the air flowing into the filter is adjusted to be a preset flow rate. In this case, the air purifier may be based on the differential pressure of each filter used in operation 201. The differential pressure of the determined filter replacement time is stored in the memory.
이후, 공기정화기는 203단계에서 초기 설치 단계에서 미리 정해진 단계의 풍량(예를 들어, 3단 풍량)으로 동작하는 상태에서 필터의 초기 차압을 측정하고, 필요에 따라 초기 측정 결과를 알리는 알람 정보를 출력할 수도 있다.Thereafter, the air purifier measures the initial differential pressure of the filter while operating at a predetermined air volume (for example, three-stage air volume) in the initial installation stage in step 203, and provides alarm information informing the initial measurement result as necessary. You can also output
이후, 공기정화기는 205단계에서 메모리에 기 저장된 초기사용상태의 복수의 필터의 유량-차압 상관관계 그래프를 기반으로, 초기 측정 결과에 매칭, 즉 측정된 초기 차압과 초기 차압 측정시에 필터로 유입되는 공기의 유량에 매칭되는 그래프를 가지는 하나의 필터를 확인한 후, 확인된 필터의 교체시기상태의 유량-차압 상관관계 그래프를 선택한다. 공기정화기는 내부 필터를 확인된 필터와 동일한 필터로 간주한다. Thereafter, the air purifier is matched to the initial measurement result, that is, flows into the filter when the measured initial differential pressure and the initial differential pressure are measured based on the flow-differential pressure correlation graph of the plurality of filters in the initial use state previously stored in the memory in step 205. After identifying one filter having a graph that matches the flow rate of the air being selected, the flow-differential pressure correlation graph of the replacement filter state of the identified filter is selected. The air purifier regards the internal filter as the same filter as the identified filter.
205단계는 메모리에 복수의 필터에 대한 유량-차압 상관관계 그래프가 저장된 경우에 수행되는 것으로, 메모리에 내부 필터에 해당하는 유량-차압 상관관계 그래프만이 저장된 경우에는 생략 가능하다.Step 205 is performed when the flow rate-differential pressure correlation graph for the plurality of filters is stored in the memory, and may be omitted when only the flow rate-differential pressure correlation graph corresponding to the internal filter is stored in the memory.
이후, 공기정화기는 207단계에서 미리 정해진 주기에 미리 정해진 단계의 풍량으로 동작하는 상태에서 필터의 차압을 측정한다. 이때, 공기정화기는 측정 결과를 알리는 알람 정보를 출력할 수도 있다.In operation 207, the air purifier measures the differential pressure of the filter in a state in which the air purifier is operated at a predetermined air volume at a predetermined cycle. In this case, the air purifier may output alarm information informing of the measurement result.
이후, 공기정화기는 209단계에서 미리 정해진 주기에 미리 정해진 단계의 풍량으로 동작하는 상태에서 측정된 필터의 차압과 차압 측정시에 필터로 유입되는 공기의 유량이 선택된 교체시기상태의 유량-차압 상관관계 그래프에 매칭되는지 여부를 검사한다. 즉, 미리 정해진 주기에 측정된 차압과 차압 측정시의 공기의 유량이 선택된 교체시기상태의 유량-차압 상관관계 그래프 상의 임의의 점에 매칭되는지 여부를 검사한다. Thereafter, the air purifier has a flow rate-differential pressure correlation in which the flow rate of the air flowing into the filter at the time of measuring the differential pressure of the filter measured in the state of operating the air flow at the predetermined stage at a predetermined cycle in step 209 is selected. Check if the graph matches. That is, it is checked whether the differential pressure measured at a predetermined period and the flow rate of air at the differential pressure measurement match any point on the flow-differential pressure correlation graph in the selected replacement timing state.
209단계에서 매칭 결과, 선택된 교체시기상태의 유량-차압 상관관계 그래프에 매칭되면, 공기정화기는 211단계에서 필터의 교체시기가 도래하였다고 결정하고, 필터교체시기를 알리는 알람 정보를 출력한다.  If the matching result is matched with the flow-differential pressure correlation graph of the selected replacement timing state in step 209, the air purifier determines that the replacement time of the filter has arrived in step 211, and outputs alarm information indicating the filter replacement time.
반면, 209단계에서 매칭 결과, 선택된 교체시기상태의 유량-차압 상관관계 그래프에 매칭되지 않으면, 공기정화기는 필터의 교체시기가 도래하지 않았다고 결정하고, 207단계로 돌아가 이하 단계를 반복 수행한다.On the other hand, if the matching result does not match the flow-differential pressure correlation graph of the selected replacement timing state in step 209, the air purifier determines that the replacement time of the filter has not arrived, and returns to step 207 to repeat the following steps.
다른 실시예에 따르면, 필터로 유입되는 공기의 유량이 기 설정된 유량이 되도록 조절한 상태에서 필터의 차압을 측정할 수 있는데, 이 경우, 공기정화기는 초기 차압과 미리 정해진 주기에 측정된 필터의 차압을 기초로 기 저장된 필터교체시기의 차압과 비교한 결과에 따라 필터의 교체시기 도래 여부를 결정한다.According to another embodiment, the differential pressure of the filter may be measured while adjusting the flow rate of the air flowing into the filter to be a preset flow rate, in which case, the air purifier may measure the initial differential pressure and the differential pressure of the filter measured at a predetermined period. Based on the result of the comparison with the differential pressure of the pre-stored filter replacement time, it is determined whether to replace the filter.
이후, 공기정화기는 본 발명에 따른 알고리즘을 종료한다. The air purifier then terminates the algorithm according to the invention.
도시하지 않았지만, 211단계의 필터교체시기를 알리는 알람 정보의 출력에 따라 사용자에 의해 내부 필터가 교환되면, 공기정화기는 203단계로 돌아가 미리 정해진 단계의 풍량으로 초기 차압을 측정하고, 초기 측정 결과를 알리는 알람 정보를 출력한 후, 이하 단계를 반복 수행할 수 있다. Although not shown, when the internal filter is replaced by the user according to the output of the alarm information indicating the filter replacement time in step 211, the air purifier returns to step 203 to measure the initial differential pressure at a predetermined air flow rate, and the initial measurement result is displayed. After outputting the notifying alarm information, the following steps may be repeated.
도 4는 본 발명의 일 실시 형태에 따른 공기정화기를 위한 필터교체시기 차압 결정 장치의 구성을 도시한 블록도이다.4 is a block diagram showing the configuration of a filter replacement time differential pressure determining device for an air purifier according to an embodiment of the present invention.
도 4를 참조하면, 필터교체시기 차압 결정 장치(400)는, 필터링 성능 측정부(410), 차압 측정부(420) 및 필터교체시기 차압 결정부(430)를 포함하며, 제조 단계에서 실험을 통해 테스트 대상 필터의 필터링 성능이 미리 정해진 단계만큼 다운그레이드 되는 시점의 차압을 기반으로 필터교체시기의 차압을 결정하고, 이를 공기정화기에 구비된 메모리(미도시)에 저장한다.Referring to FIG. 4, the filter replacement time differential pressure determining device 400 includes a filtering performance measuring unit 410, a differential pressure measuring unit 420, and a filter replacement time differential pressure determining unit 430. Based on the differential pressure at the time when the filtering performance of the filter to be tested is downgraded by a predetermined step, the differential pressure of the filter replacement time is determined and stored in a memory (not shown) provided in the air purifier.
여기서, 필터의 필터링 성능으로, 국제규격(예를 들어, CA(Clean Air), CADR(Clean Air Delivery Rate), JEMA(Japan Electrical Manufacturers' Association) 규격)에 정의된 0.3 크기의 이물질(즉, 먼지)의 제거 성능을 적용할 수 있다. 예를 들어, 제조 단계에서 실험을 통해, 사용면적 15평형을 커버하도록 설계된 공기정화기의 필터가 시간 경과에 따라 오염되어 사용면적 13평형을 커버하는 필터와 동일한 성능을 가지게 되는 시점의 차압을 기반으로 필터교체시기의 차압을 결정할 수 있다.Here, the filtering performance of the filter, the foreign matter of 0.3 size defined in the international standards (e.g., Clean Air (CA), Clean Air Delivery Rate (CAD), Japan Electrical Manufacturers' Association (JEMA) standard) ) Can be applied to remove performance. For example, based on the differential pressure at the time of the manufacturing stage, the air purifier's filter designed to cover an area of 15 equilibrium will be contaminated over time and will have the same performance as the filter covering an area of 13 equilibrium. The differential pressure at the time of filter replacement can be determined.
구체적으로, 필터링 성능 측정부(410)는, 테스트 대상 필터와 테스트 대상 필터보다 미리 정해진 단계만큼 다운그레이드된 성능을 가지는 비교 대상 필터의 초기 필터링 성능을 측정한다. In detail, the filtering performance measuring unit 410 measures the initial filtering performance of the comparison target filter having the performance downgraded by a predetermined step than the test target filter and the test target filter.
또한, 필터링 성능 측정부(410)는 테스트 대상 필터의 필터링 성능을 주기적으로 측정한다. In addition, the filtering performance measuring unit 410 periodically measures the filtering performance of the test target filter.
차압 측정부(420)는 필터링 성능 측정부(410)에 의해 테스트 대상 필터의 초기 필터링 성능이 측정되면, 해당 시점의 테스트 대상 필터의 초기 차압을 측정한다.The differential pressure measuring unit 420 measures the initial differential pressure of the test target filter at the time when the initial filtering performance of the test target filter is measured by the filtering performance measuring unit 410.
또한, 차압 측정부(420)는 필터링 성능 측정부(410)에 의해 주기적으로 측정된 테스트 대상 필터의 필터링 성능이, 테스트 대상 필터보다 미리 정해진 단계만큼 다운그레이드된 성능을 가지는 비교 대상 필터의 초기 필터링 성능과 동일해지는 시점의 테스트 대상 필터의 차압(즉, 교체시기상태의 차압)을 측정한다. In addition, the differential pressure measuring unit 420 may perform the initial filtering of the comparison target filter having the filtering performance of the test target filter periodically measured by the filtering performance measuring unit 410 having a performance downgraded by a predetermined step than the test target filter. Measure the differential pressure of the filter under test (ie the differential pressure at the time of replacement) at the same time as the performance.
여기서, 차압 측정부(420)는 테스트 대상 필터로 유입되는 공기의 유량이 기 설정된 유량이 되도록 조절한 상태에서 테스트 대상 필터의 차압을 측정한다.Here, the differential pressure measuring unit 420 measures the differential pressure of the filter to be tested in a state in which the flow rate of the air flowing into the test object filter is adjusted to be a preset flow rate.
필터교체시기 차압 결정부(430)는, 차압 측정부(420)에 의해 측정된 초기 차압과 교체시기상태의 차압을 기초로 테스트 대상 필터에 대한 필터교체시기의 차압(예를 들어, 초기 차압과 교체시기상태의 차압의 차)을 결정한다. 이에 따라, 테스트 대상 필터가 구비된 공기정화기는 필터교체시기 차압 결정장치(400)에 의해 결정된 필터교체시기의 차압을 기반으로 내부 필터의 교체시기를 결정할 수 있다. The filter replacement time differential pressure determining unit 430 may determine the differential pressure of the filter replacement time for the filter to be tested (for example, the initial differential pressure based on the initial differential pressure measured by the differential pressure measurement unit 420 and the differential pressure in the replacement timing state). The difference in the differential pressure in the replacement timing state. Accordingly, the air purifier provided with the filter to be tested may determine the replacement time of the internal filter based on the differential pressure of the filter replacement time determined by the filter replacement time differential pressure determining device 400.
상술한 필터교체시기 차압 결정장치(400)는 테스트 대상 필터가 구비된 공기정화기의 내부에 포함될 수도 있고, 공기정화기와 연계되는 별도의 장치로 구현될 수도 있다.The above-described filter replacement time differential pressure determining device 400 may be included in the air purifier provided with the filter to be tested, or may be implemented as a separate device associated with the air purifier.
도 5는 본 발명의 일 실시 형태에 따른 공기정화기를 위한 필터교체시기 차압 결정 방법을 도시한 흐름도이다. 도 5에 도시된 필터교체시기 차압 결정 방법은 도 4에 도시된 필터교체시기 차압 결정 장치에 의해 수행될 수 있다.5 is a flowchart illustrating a method of determining a differential pressure of filter replacement time for an air purifier according to an embodiment of the present invention. The filter replacement time differential pressure determination method illustrated in FIG. 5 may be performed by the filter replacement time differential pressure determination apparatus illustrated in FIG. 4.
도 5를 참조하면, 필터교체시기 차압 결정장치는 501단계에서 미리 정해진 크기(예를 들어, 30m3)의 제1 실험용 챔버 안에 기 사용되지 않은 테스트 대상 필터와 0.3 크기의 이물질을 삽입하고 팬(FAN)을 이용하여 미리 정해진 단계의 풍량(예를 들어, 3단 풍량)을 유지한 상태에서, 테스트 대상 필터의 초기 필터링 성능, 예를 들어 0.3 크기의 이물질이 초기 농도의 1/3 이하가 되는 시간 T1을 측정하고, 그때의 테스트 대상 필터의 초기 차압 P1을 측정한다. Referring to FIG. 5, in operation 501, the differential pressure determining device for inserting a filter inserts an unused test target filter and a foreign material having a size of 0.3 into a first experimental chamber having a predetermined size (for example, 30 m 3 ) and replaces a fan ( FAN) is used to maintain a predetermined air flow rate (e.g., three-stage air flow rate), so that the initial filtering performance of the filter under test, for example, foreign substances having a size of 0.3, becomes less than 1/3 of the initial concentration. The time T1 is measured, and the initial differential pressure P1 of the filter to be tested at that time is measured.
이후, 필터교체시기 차압 결정장치는 503단계에서 동일 크기의 제2 실험용 챔버 안에 테스트 대상 필터보다 미리 정해진 단계만큼 다운그레이드된 성능을 가지는 기 사용되지 않은 비교 대상 필터와 0.3 크기의 이물질을 삽입하고 팬을 이용하여 미리 정해진 단계의 풍량을 유지한 상태에서, 비교 대상 필터의 초기 필터링 성능, 예를 들어 0.3 크기의 이물질이 초기 농도의 1/3 이하가 되는 시간 T2를 측정한다. 여기서, 테스트 대상 필터와 비교 대상 필터는, 예를 들어 각각 사용면적 15평형과 13평형을 커버하도록 설계된 공기정화기의 필터일 수 있다. Subsequently, the filter replacement time differential pressure determining device inserts an unused comparison target filter having a performance of downgrading by a predetermined stage than the test target filter in the second experimental chamber of the same size and a foreign matter of 0.3 size in step 503, and removes a fan. In the state in which the air volume of the predetermined stage is maintained, the initial filtering performance of the filter to be compared, for example, the time T2 at which the foreign matter of 0.3 size becomes 1/3 or less of the initial concentration is measured. Here, the filter to be tested and the filter to be compared may be, for example, filters of an air purifier designed to cover a use area of 15 equilibrium and 13 equilibrium, respectively.
이후, 필터교체시기 차압 결정장치는 505단계에서 제1 실험용 챔버에 0.3 크기의 이물질을 주기적으로 삽입하고 테스트 대상 필터의 필터링 성능을 주기적으로 측정한다. 테스트 대상 필터는 이물질의 주기적인 삽입으로 시간 경과에 따라 오염되며, 이에 따라 주기적으로 측정된 테스트 대상 필터의 필터링 성능은 초기 필터링 성능 대비 점차 떨어지게 된다. Thereafter, the filter replacement time differential pressure determining device periodically inserts a foreign material having a size of 0.3 into the first experimental chamber in step 505 and periodically measures the filtering performance of the filter to be tested. The filter under test is contaminated over time due to the periodic insertion of foreign substances, and thus the filtering performance of the periodically measured test filter decreases gradually compared to the initial filtering performance.
이후, 필터교체시기 차압 결정장치는 507단계에서 주기적으로 측정된 테스트 대상 필터의 필터링 성능이, 비교 대상 필터의 초기 필터링 성능과 동일해지는 시점, 예를 들어 0.3 크기의 이물질이 초기 농도의 1/3 이하가 되는 시간이 T2가 되는 시점을 결정하고, 그 시점의 테스트 대상 필터의 교체시기상태의 차압 P2를 측정한다. Subsequently, the filter replacement time differential pressure determining device determines when the filtering performance of the filter to be tested periodically measured in step 507 is equal to the initial filtering performance of the filter to be compared, for example, when a foreign substance having a size of 0.3 is 1/3 of the initial concentration. The time when the following time becomes T2 is determined, and the differential pressure P2 in the state of replacement time of the filter under test at that time is measured.
이후, 필터교체시기 차압 결정장치는 509단계에서 측정된 교체시기상태의 차압 P2와 초기 차압 P1을 기초로 테스트 대상 필터에 대한 필터교체시기의 차압(예를 들어, 초기 차압 P1과 교체시기상태의 차압 P2의 차)을 결정한다.Subsequently, the filter replacement time differential pressure determining device determines the differential pressure of the filter replacement time for the filter to be tested (for example, the initial differential pressure P1 and the replacement timing state) based on the differential pressure P2 of the replacement timing state and the initial differential pressure P1 measured in step 509. Difference of the differential pressure P2).
이와 같이 결정된 필터교체시기의 차압은 테스트 대상 필터와 동일한 필터가 내부에 적용된 공기정화기의 메모리에 기 저장된다. The differential pressure of the filter replacement time determined in this way is stored in the memory of the air purifier to which the same filter as the filter under test is applied.
이후, 필터교체시기 차압 결정장치는 본 발명에 따른 알고리즘을 종료한다. Thereafter, the filter replacement time differential pressure determining device terminates the algorithm according to the present invention.
이와 같이, 본 발명의 실시 형태에 따른 공기정화기, 이의 필터교체시기 결정 방법 및 이를 위한 필터교체시기 차압 결정 장치 및 방법에 따르면, 필터의 사용상태에 따른 유량-차압의 상관관계를 기반으로 필터교체시기를 결정함으로써 정확한 필터교체시기를 결정할 수 있으며, 사용자가 이를 인지하도록 알람을 출력함으로써 사용자로 하여금 공기정화를 위한 필터를 적기에 교체하도록 할 수 있는 이점이 있다. As described above, according to the air purifier according to the embodiment of the present invention, the method for determining the filter replacement time thereof, and the apparatus and method for determining the filter replacement time differential pressure therefor, the filter replacement is performed based on the correlation between the flow rate and the differential pressure according to the use condition of the filter. By determining the timing, it is possible to determine the exact filter replacement time, and by outputting an alarm so that the user is aware of this, there is an advantage that the user can replace the filter for air purification in a timely manner.
이상에서 본 발명의 실시예에 대하여 상세하게 설명하였지만 본 발명의 권리범위는 이에 한정되는 것은 아니고, 청구범위에 기재된 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양한 수정 및 변형이 가능하다는 것은 당 기술분야의 통상의 지식을 가진 자에게는 자명할 것이다.Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and changes can be made without departing from the technical spirit of the present invention described in the claims. It will be obvious to those of ordinary skill in the field.

Claims (18)

  1. 필터의 사용상태별 유량-차압 상관관계 그래프를 저장하는 메모리;A memory for storing a flow-differential pressure correlation graph for each filter used;
    상기 필터의 전단과 후단의 압력차인 차압을 측정하는 차압 센서; 및A differential pressure sensor for measuring a differential pressure that is a pressure difference between the front end and the rear end of the filter; And
    기 설정된 주기마다 상기 차압 센서에 의해 측정된 상기 필터의 차압과, 차압 측정시 상기 필터로 유입되는 공기의 유량을 상기 사용상태별 유량-차압 상관관계 그래프와 매칭시킨 결과에 따라 상기 필터의 교체시기를 결정하는 필터교체시기 관리부를 포함하는 공기정화기.When the filter is replaced according to a result of matching the differential pressure of the filter measured by the differential pressure sensor at a predetermined period and the flow rate of air flowing into the filter when measuring the differential pressure with a flow-differential pressure correlation graph for each use state Air purifier comprising a filter replacement time management to determine the.
  2. 제 1 항에 있어서,The method of claim 1,
    상기 필터로 유입되는 공기의 유량은,The flow rate of air flowing into the filter is
    상기 차압 측정시에 유량 센서에 의해 측정된 공기의 유량, 및The flow rate of air measured by the flow sensor at the time of measuring the differential pressure, and
    상기 차압 측정시에 상기 공기정화기의 풍량 단계에 따라 기 설정된 공기의 유량 중 어느 하나인 공기정화기.The air purifier of any one of the flow rate of the predetermined air in accordance with the air flow rate of the air purifier at the time of measuring the differential pressure.
  3. 제 1 항에 있어서,The method of claim 1,
    상기 필터교체시기 관리부는 상기 기 설정된 주기마다 측정된 상기 필터의 차압과, 차압 측정시 상기 필터로 유입되는 공기의 유량이 필터교체상태의 유량-차압 상관관계 그래프에 매칭되면 상기 필터의 교체시기가 도래된 것으로 결정하는 공기정화기.The filter replacement time management unit may replace the filter when the differential pressure of the filter measured at the predetermined period and the flow rate of air flowing into the filter when the differential pressure is measured match the flow-differential pressure correlation graph of the filter replacement state. An air purifier that decides to come.
  4. 제 1 항에 있어서,The method of claim 1,
    상기 메모리는 복수의 필터에 대한 사용상태별 유량-차압 상관관계 그래프를 저장하고,The memory stores the flow-differential pressure correlation graph for each of the plurality of filters by use state,
    상기 필터교체시기 관리부는 복수의 필터에 대한 초기사용상태의 유량-차압 상관관계 그래프를 기반으로, 초기 설치 단계에서 상기 차압 센서에 의해 측정된 초기 차압과 상기 초기 차압 측정시에 상기 필터로 유입되는 공기의 유량에 매칭되는 그래프를 갖는 하나의 필터를 확인하고, 확인된 필터의 교체시기상태의 유량-차압 상관관계 그래프를 선택하여 상기 필터의 교체시기 결정에 이용하는 공기정화기.The filter replacement time management unit is introduced into the filter when the initial differential pressure measured by the differential pressure sensor and the initial differential pressure measurement in the initial installation step based on the flow-differential pressure correlation graph of the initial use state for the plurality of filters An air purifier for identifying a filter having a graph matched with a flow rate of air, and selecting a flow rate-differential pressure correlation graph in a state of replacement time of the identified filter to determine replacement time of the filter.
  5. 제 1 항에 있어서,The method of claim 1,
    상기 필터교체시기 관리부에 의해 결정된 상기 필터의 교체시기를 알리는 알람 정보를 출력하는 알람부를 더 포함하는 공기정화기.And an alarm unit for outputting alarm information informing of a replacement time of the filter determined by the filter replacement time manager.
  6. 미리 결정된 필터교체시기의 차압을 저장하는 메모리;A memory for storing the differential pressure at a predetermined filter replacement time;
    필터의 전단과 후단의 압력차인 차압을 측정하는 차압 센서; 및A differential pressure sensor for measuring a differential pressure which is a pressure difference between the front end and the rear end of the filter; And
    초기 설치 단계에서 상기 차압 센서에 의해 측정된 상기 필터의 초기 차압과 기 설정된 주기마다 상기 차압 센서에 의해 측정된 상기 필터의 차압을 기초로 상기 필터교체시기의 차압과 비교한 결과에 따라 상기 필터의 교체시기를 결정하는 필터교체시기 관리부를 포함하며,According to a result of comparing the initial pressure of the filter measured by the differential pressure sensor in the initial installation step and the differential pressure of the filter replacement time based on the differential pressure of the filter measured by the differential pressure sensor at predetermined intervals. Includes filter replacement time management unit to determine the replacement time,
    상기 필터교체시기의 차압은 상기 필터로 유입되는 공기의 유량이 기 설정된 유량이 되도록 조절한 상태에서 측정된 상기 필터의 초기 차압과 상기 필터의 성능이 미리 정해진 단계만큼 다운그레이드 되는 시점의 차압을 기반으로 결정되는 공기정화기.The differential pressure of the filter replacement time is based on the differential pressure at the time when the initial differential pressure of the filter measured in a state in which the flow rate of the air flowing into the filter is set to a preset flow rate and the performance of the filter is downgraded by a predetermined stage. Air purifier determined by.
  7. 필터의 사용상태별 유량-차압 상관관계 그래프를 저장하는 단계;Storing a flow-differential pressure correlation graph for each use state of the filter;
    기 설정된 주기마다 상기 필터의 차압을 측정하는 단계; 및Measuring the differential pressure of the filter at predetermined intervals; And
    기 설정된 주기마다 측정된 상기 필터의 차압과, 차압 측정시 상기 필터로 유입되는 공기의 유량을 상기 사용상태별 유량-차압 상관관계 그래프와 매칭시킨 결과에 따라 상기 필터의 교체시기를 결정하는 단계를 포함하는 공기정화기의 필터교체시기 결정 방법.Determining a replacement time of the filter based on a result of matching the differential pressure of the filter measured at predetermined periods and the flow rate of air flowing into the filter when the differential pressure is measured with the flow-differential pressure correlation graph for each use state; Determination method of filter replacement of the air purifier containing.
  8. 제 7 항에 있어서,The method of claim 7, wherein
    상기 필터로 유입되는 공기의 유량은,The flow rate of air flowing into the filter is
    상기 차압 측정시에 유량 센서에 의해 측정된 공기의 유량, 및The flow rate of air measured by the flow sensor at the time of measuring the differential pressure, and
    상기 차압 측정시에 상기 공기정화기의 풍량 단계에 따라 기 설정된 공기의 유량 중 어느 하나인 공기정화기의 필터교체시기 결정 방법.Determination method of the filter replacement time of the air purifier which is any one of the flow rate of the predetermined air according to the air flow stage of the air purifier at the time of measuring the differential pressure.
  9. 제 7 항에 있어서, The method of claim 7, wherein
    상기 필터의 교체시기를 결정하는 단계는, 상기 기 설정된 주기마다 측정된 상기 필터의 차압과, 차압 측정시 상기 필터로 유입되는 공기의 유량이 필터교체상태의 유량-차압 상관관계 그래프에 매칭되면 상기 필터의 교체시기가 도래된 것으로 결정하는 공기정화기의 필터교체시기 결정 방법.The determining of the replacement time of the filter may include: when the differential pressure of the filter measured at each preset period and the flow rate of air flowing into the filter when the differential pressure is measured match the flow-differential pressure correlation graph of the filter replacement state, A method for determining the filter replacement time of an air purifier that determines that the filter replacement time has arrived.
  10. 제 7 항에 있어서,The method of claim 7, wherein
    초기 설치 단계에서 상기 필터의 초기 차압을 측정하는 단계; 및Measuring an initial differential pressure of the filter in an initial installation step; And
    복수의 필터에 대한 초기사용상태의 유량-차압 상관관계 그래프를 기반으로, 상기 초기 차압과 상기 초기 차압 측정시에 상기 필터로 유입되는 공기의 유량에 매칭되는 그래프를 갖는 하나의 필터를 확인하고, 확인된 필터의 교체시기상태의 유량-차압 상관관계 그래프를 선택하는 단계를 더 포함하는 공기정화기의 필터교체시기 결정 방법.Based on the flow-differential pressure correlation graph of the initial use state for the plurality of filters, identify a filter having a graph matching the initial differential pressure and the flow rate of the air flowing into the filter during the initial differential pressure measurement, And determining a flow rate-differential pressure correlation graph of the identified filter replacement timing.
  11. 제 7 항에 있어서,The method of claim 7, wherein
    상기 필터의 교체시기를 알리는 알람 정보를 출력하는 단계를 더 포함하는 공기정화기의 필터교체시기 결정 방법.And a step of outputting alarm information informing the replacement time of the filter.
  12. 미리 결정된 필터교체시기의 차압을 저장하는 단계;Storing the differential pressure at a predetermined filter replacement time;
    초기 설치 단계에서 상기 필터의 초기 차압을 측정하는 단계;Measuring an initial differential pressure of the filter in an initial installation step;
    기 설정된 주기마다 상기 필터의 차압을 측정하는 단계; 및Measuring the differential pressure of the filter at predetermined intervals; And
    상기 필터의 초기 차압과 상기 기 설정된 주기마다 측정된 상기 필터의 차압을 기초로 상기 필터교체시기의 차압과 비교한 결과에 따라 상기 필터의 교체시기를 결정하는 단계를 포함하며,And determining a replacement time of the filter based on a result of comparing the differential pressure of the filter replacement time based on the initial differential pressure of the filter and the differential pressure of the filter measured at each predetermined period.
    상기 필터교체시기의 차압은 상기 필터로 유입되는 공기의 유량이 기 설정된 유량이 되도록 조절한 상태에서 측정된 상기 필터의 초기 차압과 상기 필터의 성능이 미리 정해진 단계만큼 다운그레이드 되는 시점의 차압을 기반으로 결정되는 공기정화기의 필터교체시기 결정 방법.The differential pressure of the filter replacement time is based on the differential pressure at the time when the initial differential pressure of the filter measured in a state in which the flow rate of the air flowing into the filter is set to a preset flow rate and the performance of the filter is downgraded by a predetermined stage. Determination method of filter replacement time of air purifier determined by.
  13. 기 설정된 주기마다 테스트 대상 필터의 필터링 성능을 측정하는 필터링 성능 측정부;A filtering performance measurement unit configured to measure filtering performance of the test target filter at preset cycles;
    상기 기 설정된 주기마다 측정된 상기 테스트 대상 필터의 필터링 성능이 상기 테스트 대상 필터보다 미리 정해진 단계만큼 다운그레이드된 성능을 가지는 비교 대상 필터의 초기 필터링 성능과 동일해지는 시점의 상기 테스트 대상 필터의 교체시기상태의 차압을 측정하는 차압 측정부; 및The replacement timing state of the filter to be tested when the filtering performance of the filter to be measured measured at each predetermined period is equal to the initial filtering performance of the filter to be compared with the filter to be downgraded by a predetermined step than the filter to be tested. Differential pressure measuring unit for measuring the differential pressure of the; And
    상기 교체시기상태의 차압을 기초로 상기 테스트 대상 필터에 대한 필터교체시기의 차압을 결정하는 필터교체시기 차압 결정부를 포함하는 공기정화기를 위한 필터교체시기 차압 결정 장치.And a filter replacement time differential pressure determining unit configured to determine a differential pressure of the filter replacement time for the filter to be tested based on the differential pressure in the replacement timing state.
  14. 제 13 항에 있어서, The method of claim 13,
    상기 필터링 성능 측정부는 상기 테스트 대상 필터와 상기 비교 대상 필터의 초기 필터링 성능을 측정하고,The filtering performance measuring unit measures an initial filtering performance of the test target filter and the comparison target filter,
    상기 차압 측정부는 상기 초기 필터링 성능 측정시의 상기 테스트 대상 필터의 초기 차압을 측정하며,The differential pressure measuring unit measures an initial differential pressure of the filter to be tested when the initial filtering performance is measured,
    상기 필터교체시기 차압 결정부는 상기 초기 차압과 상기 교체시기상태의 차압의 차를 상기 필터교체시기의 차압으로 결정하는 공기정화기를 위한 필터교체시기 차압 결정 장치.The filter replacement time differential pressure determining unit is a filter replacement time differential pressure determination device for an air purifier to determine the difference between the initial pressure difference and the differential pressure of the replacement timing state as the differential pressure of the filter replacement time.
  15. 제 14 항에 있어서, The method of claim 14,
    상기 차압 측정부는 상기 테스트 대상 필터로 유입되는 공기의 유량이 기 설정된 유량이 되도록 조절한 상태에서 상기 테스트 대상 필터의 초기 차압 및 교체시기상태의 차압을 측정하는 필터교체시기 차압 결정 장치.And the differential pressure measuring unit measures a differential pressure of the initial differential pressure and the replacement timing of the filter to be tested in a state in which the flow rate of the air flowing into the filter to be tested is a preset flow rate.
  16. 기 설정된 주기마다 테스트 대상 필터의 필터링 성능을 측정하는 단계; Measuring the filtering performance of the filter to be tested at predetermined intervals;
    상기 기 설정된 주기마다 측정된 상기 테스트 대상 필터의 필터링 성능이, 상기 테스트 대상 필터보다 미리 정해진 단계만큼 다운그레이드된 성능을 가지는 비교 대상 필터의 초기 필터링 성능과 동일해지는 시점의 상기 테스트 대상 필터의 교체시기상태의 차압을 측정하는 단계; 및When the filtering performance of the test target filter measured at the predetermined period is equal to the initial filtering performance of the comparison target filter having the performance downgraded by a predetermined step than the test target filter, the replacement timing of the test target filter Measuring the differential pressure of the state; And
    상기 테스트 대상 필터의 교체시기상태의 차압을 기반으로 상기 테스트 대상 필터에 대한 필터교체시기의 차압을 결정하는 단계를 포함하는 공기정화기를 위한 필터교체시기 차압 결정 방법.And determining the differential pressure of the filter replacement time for the filter to be tested based on the differential pressure of the replacement filter state of the filter to be tested.
  17. 제 16 항에 있어서, The method of claim 16,
    제1 실험용 챔버 안에 기 사용되지 않은 테스트 대상 필터와 기 설정된 크기의 이물질을 삽입하고 팬(FAN)을 이용하여 미리 정해진 단계의 풍량을 유지한 상태에서, 테스트 대상 필터의 초기 필터링 성능 및 초기 차압을 측정하는 단계; 및The initial filtering performance and the initial differential pressure of the filter to be tested are maintained in a state in which the unused test filter and the foreign matter having a predetermined size are inserted into the first laboratory chamber and the air flow at a predetermined stage is maintained using a fan. Measuring; And
    제2 실험용 챔버 안에 기 사용되지 않은 비교 대상 필터와 상기 기 설정된 크기의 이물질을 삽입하고 팬을 이용하여 미리 정해진 단계의 풍량을 유지한 상태에서, 비교 대상 필터의 초기 필터링 성능을 측정하는 단계를 더 포함하는 공기정화기를 위한 필터교체시기 차압 결정 방법.Measuring the initial filtering performance of the filter to be compared in a state in which an unused comparison filter and a foreign matter of the predetermined size are inserted into a second experimental chamber and a predetermined air flow rate is maintained using a fan. Method for determining the differential pressure of the filter replacement time for the air purifier comprising.
  18. 제 17 항에 있어서, The method of claim 17,
    상기 테스트 대상 필터에 대한 필터교체시기의 차압을 결정하는 단계는, 상기 초기 차압과 상기 교체시기상태의 차압의 차를 상기 필터교체시기의 차압으로 결정하는 공기정화기를 위한 필터교체시기 차압 결정 방법.Determining the differential pressure of the filter replacement time for the filter under test, the differential pressure of the filter replacement time for the air purifier to determine the difference between the initial differential pressure and the differential pressure of the replacement time state as the differential pressure of the filter replacement time.
PCT/KR2014/012306 2014-06-03 2014-12-15 Air purifier, method for determining time to replace filter thereof, and device and method for determining filer replacement time pressure differential therefor WO2015186879A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
MYPI2016704466A MY182169A (en) 2014-06-03 2014-12-15 Air purifier, method for determining time to replace filter thereof, and device and method for determining filter replacement time pressure differential therefor
US15/314,530 US10188976B2 (en) 2014-06-03 2014-12-15 Air purifier, method for determining time to replace filter thereof, and device and method for determining filter replacement time pressure differential therefor
JP2016571312A JP6419218B2 (en) 2014-06-03 2014-12-15 Air purifier, filter replacement time determination method, and filter replacement time differential pressure determination device and method
CN201480079532.7A CN106457115B (en) 2014-06-03 2014-12-15 Air purifier, the method for determining the filter replacement time and the device and method for determining filter replacement time pressure difference

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
KR10-2014-0067454 2014-06-03
KR1020140067454A KR20150139664A (en) 2014-06-03 2014-06-03 Air purifier and method for determining filter exchange period thereof
KR10-2014-0097227 2014-07-30
KR20140097227 2014-07-30
KR10-2014-0098365 2014-07-31
KR1020140098365A KR101957686B1 (en) 2014-07-31 2014-07-31 Apparatus and method for determining differential pressure of filter exchange period, and air purifier having the same
KR10-2014-0178074 2014-12-11
KR1020140178074A KR20160016504A (en) 2014-07-30 2014-12-11 Air purifier and method for determining filter exchange period thereof

Publications (1)

Publication Number Publication Date
WO2015186879A1 true WO2015186879A1 (en) 2015-12-10

Family

ID=54766930

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2014/012306 WO2015186879A1 (en) 2014-06-03 2014-12-15 Air purifier, method for determining time to replace filter thereof, and device and method for determining filer replacement time pressure differential therefor

Country Status (1)

Country Link
WO (1) WO2015186879A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020088031A1 (en) * 2018-11-01 2020-05-07 青岛海尔空调器有限总公司 Purification module cleaning reminding method and system, and air conditioner
EP3675984A4 (en) * 2017-08-29 2021-04-28 3M Innovative Properties Company Air filter condition sensing
KR20230003935A (en) * 2021-06-30 2023-01-06 현대제철 주식회사 Dust collector and its control method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050119823A (en) * 2004-06-17 2005-12-22 모딘코리아 유한회사 Air filtering apparatus for air conditioner of vehicles and controlling method thereof
KR100778575B1 (en) * 2006-12-01 2007-11-22 현대자동차주식회사 The filter integrated humidifier installed at fuel cell vehicle
KR20080079149A (en) * 2007-02-26 2008-08-29 (주)에이제이 Impinger
KR20110088244A (en) * 2010-01-28 2011-08-03 (주)이투산업환경 A hepa cleaner
US20120318137A1 (en) * 2011-06-20 2012-12-20 Honeywell International Inc. Method and systems for setting an air filter change threshold value in an hvac system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050119823A (en) * 2004-06-17 2005-12-22 모딘코리아 유한회사 Air filtering apparatus for air conditioner of vehicles and controlling method thereof
KR100778575B1 (en) * 2006-12-01 2007-11-22 현대자동차주식회사 The filter integrated humidifier installed at fuel cell vehicle
KR20080079149A (en) * 2007-02-26 2008-08-29 (주)에이제이 Impinger
KR20110088244A (en) * 2010-01-28 2011-08-03 (주)이투산업환경 A hepa cleaner
US20120318137A1 (en) * 2011-06-20 2012-12-20 Honeywell International Inc. Method and systems for setting an air filter change threshold value in an hvac system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3675984A4 (en) * 2017-08-29 2021-04-28 3M Innovative Properties Company Air filter condition sensing
WO2020088031A1 (en) * 2018-11-01 2020-05-07 青岛海尔空调器有限总公司 Purification module cleaning reminding method and system, and air conditioner
KR20230003935A (en) * 2021-06-30 2023-01-06 현대제철 주식회사 Dust collector and its control method
KR102558377B1 (en) 2021-06-30 2023-07-24 현대제철 주식회사 Dust collector and its control method

Similar Documents

Publication Publication Date Title
US10188976B2 (en) Air purifier, method for determining time to replace filter thereof, and device and method for determining filter replacement time pressure differential therefor
WO2019132111A1 (en) Air conditioner and method for controlling same
WO2016036211A2 (en) Air conditioner and control method therefor
WO2015186879A1 (en) Air purifier, method for determining time to replace filter thereof, and device and method for determining filer replacement time pressure differential therefor
CN104361218B (en) The method and device of filter element replacing
CA3088680C (en) Ductless fume hood gas monitoring and detection system
US7253743B2 (en) Techniques for identifying when to change an air filter
WO2017142346A1 (en) System and method for managing air quality, and analysis server
WO2015167098A1 (en) Mask
JP2016183856A (en) Method of calibrating air sensor and air treatment device
KR20160016504A (en) Air purifier and method for determining filter exchange period thereof
US11291940B2 (en) Air purifier including air filter life-time indicator and method for determining the life-time of an air filter
CN109106286A (en) Dust collection equipment and its control device and method
CN111282717B (en) Method, system, storage medium and device for controlling electrostatic oil fume purifier
JP5991893B2 (en) Filter device and air conditioner
WO2014148706A1 (en) Apparatus for discriminating type of analog sensor
JP5197291B2 (en) Ion generator
WO2021125662A1 (en) Atmospheric condition provision system using atmospheric pollution source measurement module
KR20150139664A (en) Air purifier and method for determining filter exchange period thereof
US20080134896A1 (en) Air cleaner having separate modules for collector plates and ionizing wires
KR101982565B1 (en) Air Cleaner And Method Of Predicting Filter Life Of Air Cleaner
JP2021037076A (en) Display system and management method of exhibits
WO2023027332A1 (en) Air conditioner and control method thereof
CN109142184A (en) The judgment method and Fresh air handling units of high efficiency particulate air filter replacement
WO2016182218A1 (en) Device for measuring fine dust inside vehicle

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14894092

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 15314530

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2016571312

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14894092

Country of ref document: EP

Kind code of ref document: A1