JPS62194143A - Filter cleaning time indicator - Google Patents

Filter cleaning time indicator

Info

Publication number
JPS62194143A
JPS62194143A JP61033008A JP3300886A JPS62194143A JP S62194143 A JPS62194143 A JP S62194143A JP 61033008 A JP61033008 A JP 61033008A JP 3300886 A JP3300886 A JP 3300886A JP S62194143 A JPS62194143 A JP S62194143A
Authority
JP
Japan
Prior art keywords
time
setting
filter
selecting
filter cleaning
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
JP61033008A
Other languages
Japanese (ja)
Inventor
Tomio Yoshikawa
富夫 吉川
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP61033008A priority Critical patent/JPS62194143A/en
Publication of JPS62194143A publication Critical patent/JPS62194143A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain a cleaning indicator for a filter, which is capable of indicating respective set times of filter cleaning without bothering an user, by selecting the flashing frequency of indicating lamp. CONSTITUTION:Settings A, B, C are memorized in the ROM of a micro-computer 13. The integrating time of the micro-computer 13 is compared with the settings A, B, C and is inputted into an indicating output selecting circuit. The indicating output selecting circuit selects the setting A, in which the flashing frequency is long, during the short elapse of time and shortens the flashing frequency such as the indications in the setting B and the setting C in accordance with the lengthening of the elapsed time to notify the degree of contamination of a filter to an user. According to this constitution, the user will never be bothered to operate switches for setting the cleaning time of the filter and various setting times for cleaning the filter may be recognized by the difference in indications.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は、空気調和機の室内側熱交換器用の塵埃除去フ
ィルタのフィルタ消掃時間表示装fitに関するもので
ある。
DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a filter cleaning time display device fit for a dust removal filter for an indoor heat exchanger of an air conditioner.

〔発明の背景〕[Background of the invention]

従来、フィルタ清掃時間表示装置として三菱電機技報V
ol 55 、陽6.1981年、2線式制御、パブケ
ージエアコンに記載のように入力としてフィルタタイマ
設定スイッチがあシ、使用者が指定時間にスイッチ操作
をしておくことによって、所望時間に表示がされるよう
に、時間設定する必要があった。
Conventionally, Mitsubishi Electric Technical Report V was used as a filter cleaning time display device.
ol 55, Yang 6. 1981, 2-wire control, as described in the pub cage air conditioner, there is a filter timer setting switch as an input, and the user operates the switch at the specified time to set it at the desired time. I had to set the time so that it would be displayed.

第4図、第5図は従来の表示装置の回路図及びブロック
図を示す。1は運転スイッチ、2a、2b 12G +
2d +2e f2fは抵抗器、3けマイクロコンピュ
ータ、4Ufi示リセツトスイツチ、5e、5fH時間
設定用のスイッチ、6Viトランジスタ、7ri表示灯
で図示のように配線され回路が形成されている。マイク
ロコンピュータ3は第5図に示すように、設定時間と、
運転信号が入力され、マイクロコンピュータ3で、時間
をカウントとすると共にこの時間と設定時間が比較され
、表示灯駆動回路に表示信号が出力される。しかして、
使用者は、上記の時間設定用スイッチ5e+5fを操作
し、その開閉の組合せにより4段階の時間設定が可能に
なっていた。
4 and 5 show a circuit diagram and a block diagram of a conventional display device. 1 is the operation switch, 2a, 2b 12G +
2d + 2e f2f is wired as shown in the figure to form a circuit with a resistor, a 3-piece microcomputer, a 4Ufi indicator reset switch, 5e, 5fH time setting switch, a 6Vi transistor, and a 7ri indicator light. As shown in FIG. 5, the microcomputer 3 inputs the setting time and
An operating signal is input, and the microcomputer 3 counts the time, compares this time with a set time, and outputs a display signal to the indicator light drive circuit. However,
The user operated the time setting switches 5e+5f, and was able to set the time in four stages by opening and closing the switches.

また、設定時間の区分けを多くするに従い時間設定用ス
イッチの個数は多く必要となる。
Furthermore, as the number of divisions of setting time increases, the number of time setting switches increases.

上述の様に従来の装置は、使用者にとってスイッチ操作
がわずられしいという問題点を有していた。
As mentioned above, the conventional device has a problem in that it is difficult for the user to operate the switch.

〔発明の目的〕[Purpose of the invention]

本発明は上記問題点VcWiみて発明されたもので、フ
ィルタ清掃時間の設定を設定時間に応じスイッチ切換を
行うことなく、フィルタ清掃の各設定時間を使用者の手
をわずられすことなく表示することが出来るフィルタの
清掃表示装置を提供することを目的とする。
The present invention was invented in view of the above-mentioned problem VcWi, and it displays each setting time of filter cleaning without the user's intervention, without changing the switch according to the setting time of the filter cleaning time. It is an object of the present invention to provide a filter cleaning display device that can perform the following steps.

〔発明の概要〕[Summary of the invention]

上記目的を達成するため本発明は、運転時間をカウント
する手段と、カウント時間に応じ各設定時間と比較し、
比較信号により表示出力を選択する手段と、選択回路の
出力により、表示灯駆動回路の点滅周期を選択する手段
を設け、使用者は表示灯の点滅周期により設定時間を知
るようにした特徴を有する。
In order to achieve the above object, the present invention includes means for counting driving time, and comparing the counted time with each set time,
The present invention is characterized by providing means for selecting a display output based on a comparison signal, and means for selecting a blinking cycle of the indicator light drive circuit based on the output of the selection circuit, so that the user can know the set time from the blinking cycle of the indicator light. .

〔発明の実施例〕[Embodiments of the invention]

以下本発明の一実施例を図面を参照して説明する。 An embodiment of the present invention will be described below with reference to the drawings.

第1図はマイクロコンピュータ−を組込んだ回路図であ
る。
FIG. 1 is a circuit diagram incorporating a microcomputer.

1は運転スイッチ、4は表示リセットスイッチ、2ae
2b+2c+2dけ抵抗器、6はトランジスタ、7は表
示灯、13はマイクロコンピュータ−で、上記各機器は
図示の如く配線し回路が形成されている。上記マイクロ
コンピュータ−13は、LSIチップ内に、CPU 、
ROM 、RAM、入出力ポート、論理演算部等を含む
いわゆるワンチップマイクロコンピュータ−である。
1 is the operation switch, 4 is the display reset switch, 2ae
2b+2c+2d resistors, 6 a transistor, 7 an indicator light, 13 a microcomputer, and the above-mentioned devices are wired to form a circuit as shown. The microcomputer 13 includes a CPU,
It is a so-called one-chip microcomputer that includes ROM, RAM, input/output ports, logic operation section, etc.

このROM中には、第2図のブロック図で示す設定時間
の設定人、設定B、設定Cが記憶されている。ここで設
定A〜段設定の時間の大小関係は設定Aく設定B〈設定
Cとしておく。
In this ROM, the setting person, setting B, and setting C of the setting time shown in the block diagram of FIG. 2 are stored. Here, the magnitude relationship of the time between setting A and stage setting is set as setting A, setting B, and setting C.

上記の如く形成された装置の作用につき以下説明する。The operation of the device formed as described above will be explained below.

運転スイッチ1が閉となると、マイクロコンピュータ1
3内に入力され、マイクロコンピュータ13内の時間カ
ウント部にて時間の積算が行われる。更に、積算時間は
、設定人、設定B1設定Cと比較され、その比較結果が
表示出力選択回路−に入力される。表示出力選択回路で
は、その時点における設定時間の最も長い時間の出力を
選択し、表示灯駆動回路に出力される。表示出力選択回
路では、その入力側である比較器A1比較器B、比較器
Cに対応した出力方式を選択し、第3図に示す表示パタ
ーンで点灯させる。つまシ、経過時間が短いうち(設定
A)は、点滅の周期が長く、経過時間が長くなるに従い
、設定B1更に設定Cのように点滅周期を短かくして使
用者にフィルタの汚れ具合を知らせることができる。
When the operation switch 1 is closed, the microcomputer 1
3, and a time counting section in the microcomputer 13 integrates the time. Furthermore, the accumulated time is compared with the setting person, setting B1, and setting C, and the comparison result is input to the display output selection circuit. The display output selection circuit selects the output with the longest set time at that time, and outputs it to the indicator lamp drive circuit. The display output selection circuit selects the output method corresponding to the comparators A, B, and C on its input side, and lights them up in the display pattern shown in FIG. However, when the elapsed time is short (Setting A), the blinking cycle is long, and as the elapsed time becomes longer, the blinking cycle is shortened as in Setting B1 and Setting C to notify the user of how dirty the filter is. I can do it.

上述のように、使用者は、時間を設定する操作が必要が
なく、点滅周期の相違により設定時間を知ることが出来
る。また、上記装置の製缶者は、時間設定スイッチは不
要となり原価低減の効果もある。
As described above, the user does not need to perform any operation to set the time, and can know the set time from the difference in the blinking cycle. Furthermore, the can maker of the above-mentioned apparatus does not need a time setting switch, which also has the effect of reducing costs.

向上記実施例は、各時間の表示を表示灯の点滅周期で行
っているが、点灯させる表示灯の数によシ時間の区別を
つけるように形成することも可能である。また場合によ
っては画表示方式を組合せた方式を形成することも可能
である。
In the above-mentioned embodiment, each time is displayed in accordance with the flashing cycle of the indicator lights, but it is also possible to differentiate the times depending on the number of indicator lights to be lit. In some cases, it is also possible to form a system that combines image display systems.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれば、使用者がフィルタ
清掃時間の設定のスイッチ操作を行うわずられしさがな
くなシ、表示区別によシフィルタ清掃の各種設定時間を
知ることが出来る。
As described above, according to the present invention, the user does not have to worry about operating a switch to set the filter cleaning time, and can know various set times for filter cleaning by distinguishing between displays.

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

第1図は本発明の一実施例を示すフィルタの清掃表示装
置の回路図、第2図は第1図の回路のブロック図、第3
図は、表示灯の表示パターンを示す線図、第4図は従来
の装置の回路図、第5図は第4図の装置のブロック図で
ある。 1・・・運転スイッチ  2・・・抵抗器  4・・・
表示リセットスイッチ  6・・・トランジスタ  7
・・・表示灯  13・・・々イクロコンピューター。
FIG. 1 is a circuit diagram of a filter cleaning display device showing one embodiment of the present invention, FIG. 2 is a block diagram of the circuit in FIG. 1, and FIG.
4 is a diagram showing a display pattern of an indicator light, FIG. 4 is a circuit diagram of a conventional device, and FIG. 5 is a block diagram of the device shown in FIG. 4. 1... Operation switch 2... Resistor 4...
Display reset switch 6...transistor 7
...Indicator light 13...Microcomputer.

Claims (1)

【特許請求の範囲】[Claims] 圧縮機、送風機を配設する熱交換器及び室内側熱交換器
の吸込口に塵埃除去用フィルタを備えた空気調和機のフ
ィルタの清掃時間表示装置において、運転信号入力部と
、運転時間カウント機構と、複数の設定時間比較機構、
比較信号にて表示出力を選択する機構を設けた制御部と
、表示灯駆動回路を備え、運転信号を上記制御部に入力
し、カウント時間に応じ設定比較時間を選択する手段と
、各比較信号にて表示出力を選択する手段と、表示灯駆
動回路の点滅周期を選択する手段を設けてなることを特
徴とするフィルタの清掃時間表示装置。
In a filter cleaning time display device for an air conditioner equipped with a dust removal filter at the suction port of a heat exchanger in which a compressor, a blower are arranged, and an indoor heat exchanger, an operation signal input section and an operation time count mechanism are provided. and multiple setting time comparison mechanisms,
A control unit equipped with a mechanism for selecting a display output based on a comparison signal, a display lamp drive circuit, means for inputting an operation signal into the control unit and selecting a set comparison time according to the count time, and a means for selecting a set comparison time according to the count time, and each comparison signal. 1. A filter cleaning time display device, comprising: means for selecting a display output at a time, and means for selecting a blinking cycle of an indicator light drive circuit.
JP61033008A 1986-02-19 1986-02-19 Filter cleaning time indicator Pending JPS62194143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61033008A JPS62194143A (en) 1986-02-19 1986-02-19 Filter cleaning time indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61033008A JPS62194143A (en) 1986-02-19 1986-02-19 Filter cleaning time indicator

Publications (1)

Publication Number Publication Date
JPS62194143A true JPS62194143A (en) 1987-08-26

Family

ID=12374792

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61033008A Pending JPS62194143A (en) 1986-02-19 1986-02-19 Filter cleaning time indicator

Country Status (1)

Country Link
JP (1) JPS62194143A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5676196A (en) * 1995-07-14 1997-10-14 M.G. General Corporation Dual energy saver for air conditioning

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5676196A (en) * 1995-07-14 1997-10-14 M.G. General Corporation Dual energy saver for air conditioning

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