JPS60147212A - Judgement of exchange period of air filter - Google Patents

Judgement of exchange period of air filter

Info

Publication number
JPS60147212A
JPS60147212A JP59003814A JP381484A JPS60147212A JP S60147212 A JPS60147212 A JP S60147212A JP 59003814 A JP59003814 A JP 59003814A JP 381484 A JP381484 A JP 381484A JP S60147212 A JPS60147212 A JP S60147212A
Authority
JP
Japan
Prior art keywords
input value
filter
function
value
fan motor
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP59003814A
Other languages
Japanese (ja)
Inventor
Mitsunori Kurachi
倉地 光教
Fujio Hitomi
人見 不二夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP59003814A priority Critical patent/JPS60147212A/en
Publication of JPS60147212A publication Critical patent/JPS60147212A/en
Pending legal-status Critical Current

Links

Landscapes

  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

PURPOSE:To make it possible to accurately judge the life of an air filter, by measuring the initial input value of a fan motor and setting a reference input value on the basis of the measured input value while comparing said reference input value with the input value of the fan motor at an arbitrary period. CONSTITUTION:The initial input value W of a fan motor measured by an input value measuring function 8 is applied to a selection function 12 and a reference input value W2 is set and indicated on the basis of said input value W to enter a setting function 13. Characteristics of machinery are preliminarily inputted to the setting function 13 and the reference input value W2 of the set value is outputted by the input of W. On the other hand, when W2 is not set and indicated, W passes through the selection function 12 as it is to enter a comparison function 9 and is compared with the aforementioned set value W2 and, when W exceeds W2, a signal is issued from an alarm function 10.

Description

【発明の詳細な説明】 〔発明の技術分野〕 この発明は、例えば空調機6等に組み込まれたエアーフ
ィルターc以下、フィルターと呼ぶ)の目詰ま9による
変換時期f以下、寿命と呼ぶ〕を的確に判定する方法に
関するものである。
[Detailed Description of the Invention] [Technical Field of the Invention] [Technical Field of the Invention] This invention relates to the conversion period f or less due to clogging 9 of an air filter c (hereinafter referred to as a filter) incorporated in an air conditioner 6, etc. This relates to a method for making accurate judgments.

〔従来技術〕[Prior art]

従来、音調機器等のフィルターの寿命を判定する方法と
しては、目視によるチェックが最゛も一般的であったが
、これは覗測者の主+i、Il的判断のためしばしば判
定をあやまり、特に再生不能な使い捨てのフィルターの
場合は判定のあやまりから、まだ使用可能なフィルター
を廃棄したり、また逆に寿#を越えたものを使用し、著
るしいVd&器能力の低下や、風量の減少による過熱を
招ねいていた@また同、上の方法はフィルターがqQ内
部に内J疲されているノ勿合、いちいちフィルター全敗
り出すというわずられしい作業を余儀無くされるという
欠点をもっていた。
Conventionally, the most common method for determining the lifespan of filters in tone equipment, etc. was to check visually, but this often led to errors in judgment due to the subjective judgment of the observer. In the case of non-recyclable disposable filters, due to an error in judgment, a filter that is still usable may be discarded, or on the other hand, a filter that has exceeded its lifespan may be used, resulting in a significant drop in Vd and air capacity, and a decrease in air volume. Also, the above method had the disadvantage that if the filter was internally worn out inside the QQ, the troublesome work of removing the entire filter one by one was forced.

これらの欠点をおぎなうために、従1来からも牙1図に
示されるようにフィルタfi+の前置に投光詣+21と
受光器(3)を配置にシ、その戊元湿(2)から出た光
がフイjレター111全透過し受光器(3)に入る量の
減少により、フィルタ、−111の寿命全検知すること
が試みられていた。この方法は、前者の目視よりはるか
にすぐれた方法ではあるが、フイレターjl)の局部し
か観察していないこと、投光δ1t21、g72光器(
3)のレンーズの汚れによる光の減少がおこり得る等の
理由によυ、決して確実な方法でなく、しばしばその4
’lJ定をあやまっていた。
In order to overcome these drawbacks, as shown in Fig. 1, a light emitter 21 and a receiver (3) have been placed in front of the filter fi+, and from its source (2) Attempts have been made to detect the entire life of the filter -111 by reducing the amount of emitted light that passes through the filter 111 and enters the light receiver (3). Although this method is far superior to the former visual observation method, there are two things that are observed: only a local part of the filler jl) is observed, and the projection δ1t21, g72 light device (
3) is not a reliable method and is often used because the light may be reduced due to dirt on the lens.
'lJ was mistaken.

又、両者いづれの方法も、フィルター(1)の汚れ程度
によってフィルター+lIの寿命を判定しようとするも
のであり、その最終目的である所の、フィルター(11
の目詰まりによって低下する風量(のるいは能力)との
関係が明確でないため、判定方法としてはきわめて不的
確であると言える。その胆の方法として機器の連転時間
によりフィルターfi+の寿命k ’FJ定するという
方法が試みられているが、この方法はフィルター+lI
 f通過する空気の1」長埃媒度によって寿命に大きな
差を生じるため誤差が大きく、特殊な一合を除いては天
川的ではない◇ また、このような問題を解消するために、第2図及び第
3凶に示されるような構成の装置が考察されている。即
ち、第2図及び第8図に於いて、改器内部にはシロッコ
ファン(4)を駆動スるインダクションモータ(5)の
入力値w il″j:〆に外部ユニット(7)にある入
力値+TtU定截能(8)VCて読み収らル、比較IN
 E t91 Mζあらかじリセットされて゛いる所定
の入力値過と比較され、ファンモータ(5)の入力・1
直Wがそのセット値W2をよえた時−報機目己+lOi
からの4M号によりランプ1川が発せられるしくみにな
っている。筐だ、第4図S−i、第2図及び第8図に示
される構成の装置の助作犀理を示す天瞼結果であり、以
下、その原理を説明すると、第4図のグラフの横1咄に
はシロッコファン(4)からの」虫(這Qa、縦軸に(
111日、及びファンモータ(5)の−転数N及び入力
値Wがきさまれている。今、初期機内圧損P6+が3j
#mApの時、緘差Qatは7沁偽であり、その時の回
転数N1は11000rp入力値W目ゴ88(旬である
In addition, both methods attempt to judge the lifespan of the filter +1I based on the degree of dirt on the filter (1), and their ultimate purpose is to determine the life of the filter (11).
It can be said that this method is extremely inaccurate as a determination method because the relationship between the air volume (airflow or capacity) that decreases due to clogging is not clear. As a countermeasure, a method has been attempted in which the lifespan k'FJ of the filter fi+ is determined by the continuous operation time of the equipment, but this method
The error is large because there is a large difference in life due to the 1" long dust medium of the air passing through, and it is not Tenkawa-like except in a special case. ◇ In order to solve this problem, A device having the configuration as shown in the figure and the third figure is considered. That is, in Fig. 2 and Fig. 8, the input value of the induction motor (5) that drives the sirocco fan (4) is inside the converter. Value + TtU fixed function (8) VC is read, comparison IN
E t91 Mζ Compared with a predetermined input value that has been reset in advance, the fan motor (5) input 1
When the direct W exceeds its set value W2 - the alarm value +lOi
The structure is such that Ramp 1 River is emitted by the 4M from the station. Figure 4 S-i, Figure 2, and Figure 8 show the results of the operation of the device configured as shown in Figure 4. In the horizontal 1 ko, there is ``Mushi'' (from Sirocco fan (4)), and on the vertical axis (
111, and the -rotation number N and input value W of the fan motor (5) are set. Now, the initial in-flight pressure loss P6+ is 3j
At the time of #mAp, the difference Qat is 7 minutes, and the rotation speed N1 at that time is 11000 rpm.The input value W is 88 (seasonal).

フィルター〇lの寿命を風m Qaが初期の80%ダク
ンした時期とすると、風量q。がQa+X0.7= 7
4.9→偽= Qasになった時が411[jであり、
その時のファンモータ人力11ffi W 2 = 7
0 (vz〕である◎また、この場合、フイ・レターi
llの圧力損失はPBs−Patり8、1 m+IノA
?、ファンモータの回転数はNx−Nr≠fJ60rp
m増加したことになる。
If the life of the filter 〇l is defined as the time when the airflow mQa has reached 80% of its initial value, then the airflow rate q. is Qa+X0.7=7
4.9 → false = When it becomes Qas, it is 411 [j,
At that time, the fan motor power was 11ffi W 2 = 7
0 (vz) ◎Also, in this case, fi letter i
The pressure loss of 1 m is PBs-Pat 8, 1 m + I no A
? , the rotation speed of the fan motor is Nx-Nr≠fJ60rp
This means that the number has increased by m.

この入力+はWt−を前記外部ユニット(7)のセント
値Wtとしておき、式化する7アンモータの入力値Wと
1i vCJt、i父しておけば、フィルター用の寿命
全知ることかでさる。
For this input +, let Wt- be the cent value Wt of the external unit (7), and by formulating the input value W of the 7 motor and 1i vCJt, i father, you can know the entire lifespan of the filter. .

この撞dはフィルター11】の局部的な汚れを見てその
4命tPjポする装置と雇い、フィルターIl+全体全
超過してくる火除の風量を把握するため、フィルター1
1)の呼命籾定がより的確であるが、戴置の装盾者が、
セット+1 ’Vhを装置が朕付けらnる11器の持・
1生に合わせておいても、その1&器が、英除に医用さ
れる現地の使用場所、使用方法が入力画セットasを決
定する条件と異なっているノ揚台はフィルター11)の
寿命判定に誤まシを生じることになる。例え674図の
特性金もつ1欠6にで、使用現地に於いて、1器に送風
ダクト台を接桃して機外静圧が1 rnm Aft増加
したとすると、初期lit 量Qa+’は6.35 n
1AJnその時のファンモータ回1広数N+’は112
0 rpm人力IN W+’ i 78 (wl フィ
ルター111の寿命とされるM量。a!′−9a1′×
(1,7=−4,45trrY、tn 、その時の入力
値w(は6Y、5vt)。
This method uses a device that detects local dirt on the filter 11 and detects it, and in order to grasp the amount of fire extinguishing air that exceeds the entire filter Il+, filter 1
1) is more accurate in determining the call, but if the shielder is
Set +1 'Vh is attached to the device and
Even if it is adjusted to 1 life, the life of the filter 11) is determined if the location and method of use of the device is different from the conditions for determining the input image set as. This will result in a mistake. For example, in case 674 has the characteristics shown in Figure 674, if a blower duct stand is attached to one unit at the site of use and the external static pressure increases by 1 rnm Aft, then the initial lit amount Qa+' is 6 .35n
1AJn At that time, the fan motor times 1 broad number N+' is 112
0 rpm manual power IN W+' i 78 (wl M amount considered to be the lifespan of filter 111.a!'-9a1'×
(1,7=-4,45trrY, tn, the input value at that time w(is 6Y, 5vt).

* fBvcセットされたWt (!−1/j: l 
5 (”l (7)差71” 6 ’)、もしセット1
dがw2のままであれば、フィルターIIIの寿命を天
1系より短かくvノ定してしまうことになる。捷た使用
現地に於いて、このような米作の差音FJ定してセット
値をW、Fに変更することは、 )Q!l疋器具や技#
全嬰する為%d易なことではなかった〇 〔究明のグ1モ要〕 この究明は以上のような従来のものの欠点ご改暦する目
的でなされたものであり、ファンモータの初期入力値全
測定してこれ全基準に標準入力ti全設定し、任意の時
期におけるファンモータの入力値との比較によりフィル
ターの寿命葡ヤJ定するようにしたものである。
* fBvc set Wt (!-1/j: l
5 ("l (7) difference 71"6'), if set 1
If d remains at w2, the lifespan of filter III will be set to be shorter than that of the Ten-1 system. In the field where rice crops are used, it is possible to change the set value to W and F after determining the difference tone FJ of rice crops. )Q! Equipment and techniques #
It was not an easy task to solve all the problems.〇〇〇〇          Research Key〕 The filter's lifespan is determined by measuring, setting all standard inputs to all standards, and comparing with the input value of the fan motor at any given time.

〔究明の英施例〕[English example of investigation]

第5図はこの発明+、Q (錐j戊を示すブロック図で
のるが、入力直測定截能(8)により測定された7アン
モータ+51の初期人カ噛Ll’f選択1涜能(1匂に
与えらノt1 これ?基準にして標準入力値Wtがセッ
ト指示され、設定機能0場に入る。1役、定機能(+場
にはあらかじめ機器の特性が入力されており、Wの入力
によってセット値の標準入力値Wtが出力される。一方
、W、セット指示が与えられない場合、Wはそのまま]
A択礪能1!カを纏り抜け、比較・4能(9)に入り、
前記セット値Wtと比較され、WがW2を越えた時、j
報機能(10)から1d号が発せられる。このように構
成された装置が祖み込まれた僧器を現地で使用する場合
、運転開始当初に自動的にセット値W3が得られ、その
1麦、連続的に得られる7アンモータ(5)の入力11
1iWとの比較において、フィルターの4命全的確に昶
ることができる〇 〔軸間の切味〕 この純量は、゛ユ上説明したと2す、エアーフィルター
の目詰まりによる機内圧損の増加によシ変化するファン
モータの入力値f!:測定し、その人力1vjiがファ
ンモータの初期入力値ρ・ら設定された標準入力値との
比軟によりエアーフィルターの4命と判定するようにし
たので、この装置;つ;取付けられた様器の使用条件に
合わせた設定入力値を・I幾器使用現地で容易にセット
出来、゛それによってエアーフィルターの寿命判定が、
的確にできるという実用上極めてすぐれた効呆をもって
いる。
Figure 5 is a block diagram showing the present invention +, The standard input value Wt is set based on the standard input value Wt, and the setting function field 0 is entered. Depending on the input, the standard input value Wt of the set value is output.On the other hand, if W and no set instruction are given, W remains unchanged]
A choice 1! Pass through the power, enter the comparison/four abilities (9),
It is compared with the set value Wt, and when W exceeds W2, j
No. 1d is issued from the information function (10). When a device with this configuration is installed on-site, the set value W3 is automatically obtained at the beginning of operation, and the set value W3 is continuously obtained. Input 11
In comparison with 1IW, 4 lives in the filter can be fully lived in the filter. The input value of the fan motor changes depending on f! :The human power of 1vji was determined to be the life of the air filter based on the comparison between the fan motor's initial input value ρ and the set standard input value. Setting input values that match the usage conditions of the device can be easily set at the site where the device is being used, thereby making it possible to determine the lifespan of the air filter.
It has excellent practical effectiveness in that it can be done accurately.

【図面の簡単な説明】[Brief explanation of the drawing]

オ1図、第2図は従来の方法全適用したファンユニット
の断面図、牙8図は第2図に示される装置の1機能構成
図、第4図は第2図、及び第8図に示される構成の装置
の動作原理を示す天験冶果の特性図、第5図は、この発
明の二実施例装置の機能構成図でちる◇ 図中111ハエアーフイルター、(6)はファンモータ
、(7)は外部ユニット、(glは入力値測定機能、(
9)は比軟Ijfk能、(lO)は−証報1云能、θ2
1d 7択機能、 7(l:1は設定機能である。 なお、図中同一符号は同一、または相当部分を示す。 代理人 大暑 増雄 第1図 第2図 第41′4
Figures 1 and 2 are cross-sectional views of the fan unit in which all conventional methods are applied, Figure 8 is a functional configuration diagram of the device shown in Figure 2, and Figure 4 is the same as Figures 2 and 8. Figure 5 is a diagram showing the operating principle of the device having the configuration shown, and is a functional configuration diagram of the second embodiment of the device of the present invention. In the figure, 111 is the air filter, and (6) is the fan motor. , (7) is an external unit, (gl is an input value measurement function, (
9) is the relative soft Ijfk capability, (lO) is the -Shiho 1n capability, θ2
1d 7 selection function, 7 (l:1 is the setting function. In addition, the same reference numerals in the figures indicate the same or equivalent parts. Agent Masuo Ohatsu Figure 1 Figure 2 Figure 41'4

Claims (1)

【特許請求の範囲】[Claims] 少なくともエアーフィルター及びインダクションモータ
によシ駆動されるファンを備え、前記7アンモータの初
期入力値を測定し、その入力値を趙準として標準入力値
全設定し、吋記ファンモータの任意時期における測定入
力値を測定して前記標準入力1直と比較し、前記測定し
た入力値が、前記標準入力1直趨えたとき、前記エアー
フィルターの交換時期と判定するようにしたことヲ将徴
とするエアーフィルターの交換時−判定方法。
Equipped with at least an air filter and a fan driven by an induction motor, measure the initial input value of the 7 fan motor, set the input value as the standard input value, and measure the fan motor at any time. The air filter is characterized in that an input value is measured and compared with the standard input 1, and when the measured input value exceeds the standard input 1, it is determined that it is time to replace the air filter. When replacing the filter - Judgment method.
JP59003814A 1984-01-10 1984-01-10 Judgement of exchange period of air filter Pending JPS60147212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59003814A JPS60147212A (en) 1984-01-10 1984-01-10 Judgement of exchange period of air filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59003814A JPS60147212A (en) 1984-01-10 1984-01-10 Judgement of exchange period of air filter

Publications (1)

Publication Number Publication Date
JPS60147212A true JPS60147212A (en) 1985-08-03

Family

ID=11567653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59003814A Pending JPS60147212A (en) 1984-01-10 1984-01-10 Judgement of exchange period of air filter

Country Status (1)

Country Link
JP (1) JPS60147212A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792345A (en) * 1986-09-10 1988-12-20 Matsushita Electric Industrial Co., Ltd. Control circuit for an air cleaner
US5036698A (en) * 1990-05-04 1991-08-06 Allied-Signal Inc. Method and apparatus for predicting life of air filter cartridges
US5810908A (en) * 1997-05-02 1998-09-22 Bemis Manufacturing Company Electronic control for air filtering apparatus
US6423118B1 (en) * 2000-09-05 2002-07-23 General Electric Company Methods and systems for controlling air filtration systems
CN109695940A (en) * 2017-10-23 2019-04-30 青岛海尔智能技术研发有限公司 A kind of control method, control unit and the dust-extraction unit of air-conditioning filter net dust-extraction unit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792345A (en) * 1986-09-10 1988-12-20 Matsushita Electric Industrial Co., Ltd. Control circuit for an air cleaner
US5036698A (en) * 1990-05-04 1991-08-06 Allied-Signal Inc. Method and apparatus for predicting life of air filter cartridges
US5810908A (en) * 1997-05-02 1998-09-22 Bemis Manufacturing Company Electronic control for air filtering apparatus
US6423118B1 (en) * 2000-09-05 2002-07-23 General Electric Company Methods and systems for controlling air filtration systems
CN109695940A (en) * 2017-10-23 2019-04-30 青岛海尔智能技术研发有限公司 A kind of control method, control unit and the dust-extraction unit of air-conditioning filter net dust-extraction unit
CN109695940B (en) * 2017-10-23 2022-01-28 青岛海尔智能技术研发有限公司 Control method and control unit of air conditioner filter screen dust removal device and dust removal device

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