JPH05157329A - Controller for drain pump of air conditioner - Google Patents
Controller for drain pump of air conditionerInfo
- Publication number
- JPH05157329A JPH05157329A JP3322708A JP32270891A JPH05157329A JP H05157329 A JPH05157329 A JP H05157329A JP 3322708 A JP3322708 A JP 3322708A JP 32270891 A JP32270891 A JP 32270891A JP H05157329 A JPH05157329 A JP H05157329A
- Authority
- JP
- Japan
- Prior art keywords
- drain
- drain pump
- water
- air conditioner
- pump
- 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
Links
Landscapes
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ドレンポンプを搭載し
た空気調和機のドレンポンプの故障診断に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a failure diagnosis of a drain pump of an air conditioner equipped with the drain pump.
【０００２】[0002]
【従来の技術】従来の空気調和機のドレンポンプ制御装
置として、図１を参照し説明する。この図は空気調和機
のドレンポンプ付近の主要部品を示す構成図で、１はド
レン水を汲み上げ廃水するドレンポンプ、２は排水管、
３は室内側熱交換器、４は室内側熱交換器で発生したド
レン水を貯める水受け皿、５は水受け皿のドレン水の水
位を監視するフロートスイッチで冷房運転中ドレン水の
水位が異常に上昇したとき（ドレンポンプの異常、排水
管のつまり等）の水もれ防止装置であり、６はこれらの
運転を制御するマイクロコンピュータを具備した制御装
置である。この構成において、一度水位が上昇しフロー
トスイッチが動作すると空気調和機の運転を停止する。2. Description of the Related Art A conventional drain pump controller for an air conditioner will be described with reference to FIG. This figure is a block diagram showing the main parts near the drain pump of the air conditioner, 1 is a drain pump that pumps drain water and waste water, 2 is a drain pipe,
3 is an indoor heat exchanger, 4 is a water pan for storing drain water generated in the indoor heat exchanger, 5 is a float switch for monitoring the drain water level in the water pan, and the drain water level is abnormal during cooling operation. A water leakage prevention device when rising (abnormality of drain pump, clogging of drain pipe, etc.), and 6 is a control device equipped with a microcomputer for controlling these operations. In this structure, once the water level rises and the float switch operates, the operation of the air conditioner is stopped.
【０００３】[0003]
【発明が解決しようとする課題】しかし、従来のドレン
ポンプの制御装置では、水受け皿にたまるドレン水の水
位が上昇し、フロートスイッチが動作し、運転が停止し
た場合にメンテナンスを行なう場合、ドレンポンプの異
常（モータコイルの断線、異物のかみ込みによるモータ
のロックなど）なのか排水系の異常（排水管のつまりな
ど）なのか判断するのに現場で多大な時間を要してい
る。However, in the conventional drain pump control device, when maintenance is performed when the level of drain water accumulated in the water receiving tray rises, the float switch operates, and the operation is stopped, the drain is removed. It takes a lot of time in the field to determine whether the pump is abnormal (motor coil is broken, motor is locked due to foreign matter being caught, etc.) or the drainage system is abnormal (clogged drain pipe, etc.).
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するため
本発明は、空気調和機の室内側熱交換器で凝縮して発生
したドレン水を排出するドレンポンプの運転電流を監視
するカレントトランス（以下ＣＴと称す）と、ドレンポ
ンプの運転状態を示す表示装置を設けたものである。In order to solve the above problems, the present invention provides a current transformer (for monitoring the operating current of a drain pump for discharging drain water generated by condensation in an indoor heat exchanger of an air conditioner). Hereinafter, referred to as CT), and a display device indicating the operating state of the drain pump is provided.
【０００５】[0005]
【作用】ドレン水が排水不能となった時、ドレンモータ
の運転電流をＣＴにより検出し、その電流値により異常
内容を区別して表示することにより、異常原因の特定が
極めて容易となり、メンテナンス性が向上する。[Operation] When the drain water cannot be drained, the operating current of the drain motor is detected by CT, and the content of the abnormality is distinguished and displayed according to the current value, which makes it extremely easy to identify the cause of the abnormality and maintainability is improved. improves.
【０００６】[0006]
【実施例】以下、本発明の一実施例について説明する。EXAMPLE An example of the present invention will be described below.
【０００７】図１は、本発明の一実施例の空気調和機主
要部の構成を示し（従来例と共用）、１はドレンポン
プ、２は排水管、３は室内側熱交換器、４は水受け皿、
５はドレン水の水位を監視するフロートスイッチ、６は
空気調和機の運転を制御するマイクロコンピュータを搭
載した電子制御装置である。FIG. 1 shows the construction of the main part of an air conditioner according to an embodiment of the present invention (shared with the conventional example), 1 is a drain pump, 2 is a drain pipe, 3 is an indoor heat exchanger, and 4 is Water saucer,
Reference numeral 5 is a float switch for monitoring the drain water level, and 6 is an electronic control unit equipped with a microcomputer for controlling the operation of the air conditioner.
【０００８】上記の構成において冷房運転を開始する
と、室内熱交換器３には空気中の水分が凝縮し、水滴と
なって流れ落ち水受け皿４内にたまる。水受け皿４に貯
ったドレン水はドレンポンプ１により汲み上げられ排水
管２をとおり屋外へと排水される。When the cooling operation is started in the above structure, the moisture in the air is condensed in the indoor heat exchanger 3 and becomes a water drop, which falls and accumulates in the water receiving tray 4. The drain water stored in the water tray 4 is pumped up by the drain pump 1 and drained through the drain pipe 2 to the outside.
【０００９】図２は、上記実施例のドレンポンプ１の駆
動部の電気回路図で、７はドレンポンプ駆動リレー、８
はドレンポンプ１の運転電流を検出するＣＴ、９はドレ
ンポンプの異常内容をＬＥＤで示す表示部である。FIG. 2 is an electric circuit diagram of the drive portion of the drain pump 1 of the above embodiment, 7 is a drain pump drive relay, and 8 is a drain pump drive relay.
Is a CT for detecting the operating current of the drain pump 1, and 9 is a display section for displaying an abnormality content of the drain pump with an LED.
【００１０】冷房運転を開始すると電子制御装置からの
信号により、リレー７がＯＮしドレンポンプ５は運転
し、ドレン水を排水管２より排水する。When the cooling operation is started, the relay 7 is turned on by the signal from the electronic control unit, the drain pump 5 is operated, and the drain water is drained from the drain pipe 2.
【００１１】今、何等かの異常が発生しドレン水の排水
が不能となり、水受け皿４内の水位が上昇し、フロート
スイッチ４が動作した。この時ＣＴ８で検出されるドレ
ンポンプ５の運転電流の大きさにより、表１に示すよう
にこの異常原因が特定できる。Now, some abnormality occurs, drain water cannot be drained, the water level in the water receiving tray 4 rises, and the float switch 4 operates. At this time, the cause of this abnormality can be identified as shown in Table 1 by the magnitude of the operating current of the drain pump 5 detected at CT8.
【００１２】[0012]
【表１】 [Table 1]
【００１３】検出電流が０であれば、ドレンポンプ５の
モータ部の断線か電線の未接続、電流が過大であれば、
異物のかみ込みによるモータ部のロックか軸受けの焼き
付き等によるモータロックかモータコイル部のレアーシ
ョート、電流が正常であれば、ドレンポンプ５には異常
がなく排水系のつまりと断定できる。この時、表示部に
は、Ｌ１からＬ３のＬＥＤが点灯し、容易に異常原因の
特定が可能となる。If the detected current is 0, the motor of the drain pump 5 is disconnected or the wire is not connected. If the current is excessive,
If the motor is locked due to foreign matter being caught or the motor is locked due to seizure of the bearing, or the motor coil is short-circuited and the current is normal, it can be concluded that the drain pump 5 has no abnormality and the drainage system is blocked. At this time, the LEDs L1 to L3 are lit on the display unit, and the cause of the abnormality can be easily specified.
【００１４】[0014]
【発明の効果】上記実施例から明らかなように本発明
は、空気調和機の室内側熱交換器で凝縮して発生したド
レン水を貯溜する水受け皿と、ドレン水を排出するドレ
ンポンプと、前記ドレンポンプの運転電流を監視するＣ
Ｔと、ドレン水の水位を検出するフロートスイッチと、
ドレンポンプの運転状態を示す表示装置と、空気調和機
の運転を制御するマイクロコンピュータを具備した電子
制御装置を設けることにより、ドレン水が排水不能とな
った時、ドレンモータの運転電流をＣＴにより検出し、
その電流値により異常内容を区別して表示部のＬＥＤを
点灯させることにより、異常原因の特定が極めて容易と
なり、メンテナンス性を著しく向上させる、優れた効果
を有するものである。As is apparent from the above-described embodiments, the present invention has a water tray for storing the drain water condensed and generated in the indoor heat exchanger of the air conditioner, a drain pump for discharging the drain water, C for monitoring the operating current of the drain pump
T and a float switch for detecting the level of drain water,
By providing an electronic control unit equipped with a display that shows the operating status of the drain pump and a microcomputer that controls the operation of the air conditioner, when the drain water cannot be drained, the operating current of the drain motor is displayed by CT. Detect and
By turning on the LED of the display unit by distinguishing the abnormality content by the current value, the cause of the abnormality can be specified very easily, and the maintainability is remarkably improved.
【図１】本発明の実施例・従来例を示す空気調和機のド
レンポンプ付近主要部の構成図FIG. 1 is a configuration diagram of a main part near a drain pump of an air conditioner showing an embodiment of the present invention and a conventional example.
【図２】同ドレンポンプ駆動部の電気回路図FIG. 2 is an electric circuit diagram of the drain pump drive unit.
１ ドレンポンプ ４ 水受け皿 ５ フロートスイッチ ６ 電子制御装置 ８ カレントトランス 1 Drain pump 4 Water pan 5 Float switch 6 Electronic control unit 8 Current transformer
Claims (1)
生したドレン水を貯溜する水受け皿と、ドレン水を排出
するドレンポンプと、前記ドレンポンプの運転電流を監
視するカレントトランス（ＣＴ）と、ドレン水の水位を
検出するフロートスイッチと、ドレンポンプの故障状態
を示す表示装置と、空気調和機の運転を制御するマイク
ロコンピュータを具備した電子制御装置を設けた、空気
調和機のドレンポンプ制御装置。1. A water tray for storing drain water generated by condensation in an indoor heat exchanger of an air conditioner, a drain pump for discharging drain water, and a current transformer for monitoring an operating current of the drain pump ( CT), a float switch for detecting the water level of the drain water, a display device for indicating a failure state of the drain pump, and an electronic control device equipped with a microcomputer for controlling the operation of the air conditioner. Drain pump control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3322708A JPH05157329A (en) | 1991-12-06 | 1991-12-06 | Controller for drain pump of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3322708A JPH05157329A (en) | 1991-12-06 | 1991-12-06 | Controller for drain pump of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05157329A true JPH05157329A (en) | 1993-06-22 |
Family
ID=18146738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3322708A Pending JPH05157329A (en) | 1991-12-06 | 1991-12-06 | Controller for drain pump of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05157329A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007129723A1 (en) * | 2006-05-10 | 2007-11-15 | Daikin Industries, Ltd. | Air conditioner |
| JP2012207873A (en) * | 2011-03-30 | 2012-10-25 | Hitachi Appliances Inc | Air conditioner |
| JP2013002719A (en) * | 2011-06-15 | 2013-01-07 | Mitsubishi Heavy Ind Ltd | Air conditioner |
| JP2013057503A (en) * | 2012-11-22 | 2013-03-28 | Mitsubishi Electric Corp | Air conditioner |
| GB2544991A (en) * | 2015-12-02 | 2017-06-07 | Aspen Pumps Ltd | Flow rate indicator |
-
1991
- 1991-12-06 JP JP3322708A patent/JPH05157329A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007129723A1 (en) * | 2006-05-10 | 2007-11-15 | Daikin Industries, Ltd. | Air conditioner |
| JP2012207873A (en) * | 2011-03-30 | 2012-10-25 | Hitachi Appliances Inc | Air conditioner |
| JP2013002719A (en) * | 2011-06-15 | 2013-01-07 | Mitsubishi Heavy Ind Ltd | Air conditioner |
| JP2013057503A (en) * | 2012-11-22 | 2013-03-28 | Mitsubishi Electric Corp | Air conditioner |
| GB2544991A (en) * | 2015-12-02 | 2017-06-07 | Aspen Pumps Ltd | Flow rate indicator |
| GB2544991B (en) * | 2015-12-02 | 2019-12-04 | Aspen Pumps Ltd | Flow rate indicator |
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