JPH05197882A - Abnormality display device for domestic electric equipment - Google Patents

Abnormality display device for domestic electric equipment

Info

Publication number
JPH05197882A
JPH05197882A JP4006867A JP686792A JPH05197882A JP H05197882 A JPH05197882 A JP H05197882A JP 4006867 A JP4006867 A JP 4006867A JP 686792 A JP686792 A JP 686792A JP H05197882 A JPH05197882 A JP H05197882A
Authority
JP
Japan
Prior art keywords
display
abnormality
front panel
absence
unit
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
JP4006867A
Other languages
Japanese (ja)
Inventor
Takehiro Kobayashi
林 壮 寛 小
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.)
Toshiba Corp
Toshiba AVE Co Ltd
Original Assignee
Toshiba Corp
Toshiba AVE Co 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 Toshiba Corp, Toshiba AVE Co Ltd filed Critical Toshiba Corp
Priority to JP4006867A priority Critical patent/JPH05197882A/en
Publication of JPH05197882A publication Critical patent/JPH05197882A/en
Pending legal-status Critical Current

Links

Landscapes

  • Air Conditioning Control Device (AREA)
  • Audible And Visible Signals (AREA)

Abstract

PURPOSE:To recognize at a glance the presence/absence of abnormality in an equipment and to easily observe the display of an abnormality cause. CONSTITUTION:This device is composed of abnormality detecting means 4, 5, 11 and 12 to detect abnormality at the respective parts of the electric equipment, display means 15 to switch a display mode between display showing the presence/absence of abnormality and the display of an abnormality code corresponding to the abnormality cause while being arranged at a position exposing one part of a display element from display holes 22a-22c on a front panel 21 of the equipment, switch 23 as a means to detect whether the front panel 21 is opened or closed, and control part 6 to discriminate the presence/ absence of abnormality from the output of the abnormality detecting means and to control the display mode of the display means 15 based on the detected result of the open/close detecting means.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、空気調和機などの家庭
用電気機器について故障による異常をユーザーに知らせ
るとともに、異常箇所を表示する家庭用電気機器の異常
表示装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an abnormality display device for household electric equipment, which informs a user of an abnormality due to a failure of an electric equipment such as an air conditioner and displays the abnormal portion.

【0002】[0002]

【従来の技術】空気調和機を初めとして家庭用電気機器
の中には、故障が生じたときの運転異常を表示灯の点滅
により表示し、安全性の確保に加えて、修理の容易化、
迅速化を図ったものがある。サービスマンは、このラン
プ表示に基づいて故障箇所を特定できるようになってい
る。例えば、空気調和機に設けられているこの種の異常
表示装置では、3個の表示素子(例えば、LED)の点
灯、点滅、消灯の組み合わせに異常項目をそれぞれ対応
させている(特開昭62−197894号参照)。
2. Description of the Related Art In household electric appliances such as an air conditioner, an operation abnormality when a failure occurs is indicated by blinking an indicator light to ensure safety and facilitate repair.
There are some that are aimed at speeding up. The service person can identify the failure location based on this lamp display. For example, in this type of abnormality display device provided in an air conditioner, abnormality items are made to correspond to combinations of lighting, blinking, and extinguishing of three display elements (for example, LEDs) (Japanese Patent Laid-Open No. 62-62160). -197894).

【0003】[0003]

【発明が解決しようとする課題】しかしながら、上記の
従来技術では、サービスマンが点検修理専用のリモコン
を用いて、サービスマニュアルに予め定められた手順に
従って点検項目をリモコンで設定し、さらにそれぞれの
点検項目についてリモコンを操作して異常の有無を表示
灯に表示させるようになっている。このため、正確に異
常箇所を見つけられるようになるまでは、かなりの習熟
を要していた。
However, in the above prior art, the service person uses the remote controller dedicated to inspection and repair to set the inspection items by the remote controller according to the procedure predetermined in the service manual, and then the respective inspections are performed. For the items, the remote control is operated to display the presence / absence of abnormality on the indicator lamp. For this reason, it took a considerable amount of proficiency to be able to accurately find the abnormal portion.

【0004】一方、各異常原因項目に対応するコードな
どの表示を、表示灯に替えてセグメントLED等の表示
器を用いてディジタル表示するようにした従来技術も知
られている。しかし、この種の表示器は普段使用するも
のではないので、室内機のパネルの裏側などの普段は人
目にふれない位置に内蔵されるものが一般であり、点
検、修理のときだけビスを外してカバーを取り外すなど
しなければならないため、煩雑で、簡単には見られない
難点が指摘されている。
On the other hand, there is also known a conventional technique in which a code corresponding to each abnormality cause item is digitally displayed by using a display device such as a segment LED instead of a display lamp. However, since this type of display is not usually used, it is usually installed in a location that is normally hidden from the public such as the back of the panel of the indoor unit, and the screw is removed only during inspection and repair. It has been pointed out that it is complicated and difficult to see because it is necessary to remove the cover and so on.

【0005】そこで、本発明の目的は、上記従来技術の
有する問題点を解消し、特別な操作の必要なく機器の異
常の有無が一目でわかり、しかも異常原因の表示が簡単
に見られるようにして保守、修理に役立つ家庭用電気機
器の異常表示装置を提供することを目的とする。
SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art so that the presence / absence of a device abnormality can be seen at a glance without requiring any special operation, and the cause of the abnormality can be easily displayed. It is an object of the present invention to provide an abnormality display device for household electric appliances that is useful for maintenance and repair.

【0006】[0006]

【課題を解決するための手段】上記目的を達成するため
に、本発明は、電気機器の各部の異常を検出する異常検
出手段と、機器の前面パネルの裏側において前面パネル
に形成した表示孔から表示素子の一部が露呈する位置に
配置され、異常の有無の表示と異常原因に対応する異常
コードの表示との間で表示モードを切り換え可能な表示
手段と、前記前面パネルの開閉を検出する開閉検出手段
と、前記異常検出手段の出力から異常の有無を判別する
とともに、前記開閉検出手段の検出結果に基づき前記表
示手段の表示モードを制御する制御部とを設けて構成し
たものである。
In order to achieve the above object, the present invention comprises an abnormality detecting means for detecting an abnormality in each part of an electric device and a display hole formed in the front panel on the back side of the front panel of the device. A display unit, which is arranged at a position where a part of the display element is exposed, can switch the display mode between the display of the presence or absence of an abnormality and the display of an abnormality code corresponding to the cause of the abnormality, and detects the opening / closing of the front panel. An open / close detection unit and a control unit for determining the presence or absence of an abnormality from the output of the abnormality detection unit and controlling the display mode of the display unit based on the detection result of the open / close detection unit are provided.

【0007】[0007]

【作用】本発明によれば、機器の運転中に異常が生じる
と、表示手段の表示素子が点滅などして異常が発生した
ことを前面パネルの表示孔を通して表示される。また、
機器を点検、修理するときには、前面パネルを開けたと
きに表示手段の表示モードが異常コードの表示に切り換
わり、この異常コードから異常箇所を知ることができ
る。
According to the present invention, when an abnormality occurs during the operation of the equipment, the display element of the display means blinks to indicate that the abnormality has occurred through the display hole of the front panel. Also,
When inspecting or repairing the equipment, when the front panel is opened, the display mode of the display means is switched to the display of the abnormal code, and the abnormal portion can be known from the abnormal code.

【0008】[0008]

【実施例】以下、本発明による家庭用電気機器の異常表
示装置の一実施例について添付の図面を参照して説明す
る。図1は、空気調和機の制御装置のブロック図であ
り、この制御装置は、室内機に組み込まれた室内制御部
1と、室外機に組み込まれた室外制御部2とから構成さ
れている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an abnormality display device for household electric appliances according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram of a control device for an air conditioner, and this control device includes an indoor control unit 1 incorporated in an indoor unit and an outdoor control unit 2 incorporated in an outdoor unit.

【0009】室内制御部1には、室内ファンモータの運
転を制御するファン制御回路3と、室内ファンモータの
運転中の異常を検出するファン異常検出回路4と、室温
を検出するセンサおよび室内熱交換器の温度を検出する
センサの出力に基づき室温、室内熱交換器の温度を検出
する温度検出回路5と、空気調和機の全般の動作を制御
するとともに、前記ファン異常検出回路4、温度検出回
路5および後述する過電流検出回路11等の異常検出手
段から与えられた検出信号から異常を判定する機能を有
する制御部6(CPU)と、室外制御部2との間で信号
の伝達をする信号伝送回路8を備えている。
The indoor control unit 1 includes a fan control circuit 3 for controlling the operation of the indoor fan motor, a fan abnormality detection circuit 4 for detecting an abnormality during operation of the indoor fan motor, a sensor for detecting room temperature, and an indoor heat. Based on the output of the sensor that detects the temperature of the exchanger, the temperature detection circuit 5 that detects the room temperature and the temperature of the indoor heat exchanger, and the overall operation of the air conditioner are controlled. A signal is transmitted between the outdoor control unit 2 and a control unit 6 (CPU) having a function of determining an abnormality from a detection signal provided from the circuit 5 and an abnormality detection unit such as an overcurrent detection circuit 11 described later. The signal transmission circuit 8 is provided.

【0010】一方、室外制御部2には、室内制御部1と
の信号伝達を行う信号伝送回路9と、インバータを駆動
するインバータ駆動回路10と、インバータの過電流を
検出する過電流検出回路11と、室外熱交換器に設けた
センサの出力から室外熱交換器の温度を検出する温度検
出回路12と、室外機の全般の動作を制御する制御部1
3を有している。この制御部13は、前記過電流検出回
路11、温度検出回路12の出力を信号伝送回路9を介
して室内制御部1の制御部6に送信する。
On the other hand, the outdoor control unit 2 has a signal transmission circuit 9 for transmitting signals to and from the indoor control unit 1, an inverter drive circuit 10 for driving an inverter, and an overcurrent detection circuit 11 for detecting an overcurrent of the inverter. And a temperature detection circuit 12 that detects the temperature of the outdoor heat exchanger from the output of a sensor provided in the outdoor heat exchanger, and a control unit 1 that controls the overall operation of the outdoor unit.
Have three. The control unit 13 sends the outputs of the overcurrent detection circuit 11 and the temperature detection circuit 12 to the control unit 6 of the indoor control unit 1 via the signal transmission circuit 9.

【0011】しかして、この実施例では、制御部6は後
述する図4のフローチャートに従って動作し、表示制御
回路14を介して表示器15を点滅させて異常が生じた
ことを表示させ、また、発生した異常がどこの故障に起
因するかの異常原因項目に対応する異常コードを表示さ
せるなど、表示器15の表示モードを制御する。ここ
で、図2は、室内機における表示器15の取付位置を示
した図で、この実施例では、表示手段としての表示器1
5には7セグメントのセグメントLEDが用いられ、2
桁の数字が表示されるように構成されている。このよう
な表示器15は、室内機の本体20の前面側に配置さ
れ、前面パネル21を開けることによって表示が見える
ようになっている。そして、図3に示されるように、前
面パネル21には、表示器15の位置に対応させて、3
個の表示孔22a乃至22cが形成されている。この場
合、これら表示孔22a乃至22cは全面パネル21を
閉じたときには、各7セグメントLEDの一部が呈出す
るよう、次のように配列されている。この実施例では、
表示孔22aは、LED21、LED22、の一部が露
呈する位置に、表示孔22bはLED23の略半分が露
呈する位置に、表示孔22cはLED17全体が露呈す
るようにそれぞれ大きさを異ならせた長孔として設けら
れている。また、全面パネル21の開閉を検出する手段
としてのスイッチ23は、前面パネル21を開けると接
点が開き、前面パネル21を閉めると接点が閉じるよう
になっている。このスイッチ23のON/OFF信号
は、制御部6に導入される。
In this embodiment, however, the control unit 6 operates according to the flow chart of FIG. 4, which will be described later, and causes the display control circuit 14 to blink the display 15 to indicate that an abnormality has occurred. The display mode of the display unit 15 is controlled by displaying an error code corresponding to an error cause item indicating which failure causes the error that has occurred. Here, FIG. 2 is a diagram showing a mounting position of the display unit 15 in the indoor unit, and in this embodiment, the display unit 1 as a display unit.
7 segment LED is used for 5, 2
It is configured to display digits. Such a display 15 is arranged on the front side of the main body 20 of the indoor unit, and the display can be seen by opening the front panel 21. Then, as shown in FIG.
Individual display holes 22a to 22c are formed. In this case, these display holes 22a to 22c are arranged as follows so that a part of each 7-segment LED is exposed when the front panel 21 is closed. In this example,
The display hole 22a is so sized that a part of the LED 21 , LED 22 is exposed, the display hole 22b is so sized that almost half of the LED 23 is exposed, and the display hole 22c is so sized that the entire LED 17 is exposed. Is provided as a long hole. Further, the switch 23 as a means for detecting the opening / closing of the front panel 21 is configured such that the contact is opened when the front panel 21 is opened and the contact is closed when the front panel 21 is closed. The ON / OFF signal of the switch 23 is introduced into the control unit 6.

【0012】次に、本実施例による異常表示装置の動作
について、図4のフローチャートを参照して説明する。
まず、本実施例では、空気調和機に発生した故障や動作
不良などの異常原因項目と、各項目にそれぞれ2桁の数
字を割り当てた異常コードとの対応が下記の表のように
なっている。 異常コード 異常原因項目 00 誤配線 01 室内ファン異常 02 室温センサ異常 03 熱交換器異常 04 過電流 そこで、空気調和機が運転される間は、異常検出手段を
構成するファン異常検出回路4、温度検出回路5、1
2、過電流検出回路11からの各出力信号が制御部6に
導入される。この制御部6はそれぞれ各出力信号に基づ
き異常発生の有無を判別し(ステップS1)、異常が発
生していれば、ステップS2に進み、表示制御回路14
にLEDの点滅指令信号を出力する。表示制御回路14
は、この指令信号を受けて、表示器15のセグメントL
EDのうちLED21、LED22LED17、LED
27の点滅制御を実行する。このようなLEDの点滅
は、前面パネル21の表示孔22a乃至22cから視認
できるので、ユーザーはこの点滅を見て空気調和機に故
障等の異常が発生したことを知ることができる。なお、
空気調和機で正常運転が継続されているときには、制御
部6は表示制御回路14に表示器15のセグメントLE
Dの全部のLEDを消灯させる指令信号を出力する(ス
テップS3)。これにより、ユーザーは表示器が消灯し
ている間は、正常運転が継続していることを知ることが
できる。
Next, the operation of the abnormality display device according to this embodiment will be described with reference to the flowchart of FIG.
First, in the present embodiment, the table below shows the correspondence between abnormal cause items such as failures and malfunctions occurring in the air conditioner and abnormal code in which each item is assigned a two-digit number. .. Abnormal code Abnormal cause item 00 Wrong wiring 01 Indoor fan abnormality 02 Room temperature sensor abnormality 03 Heat exchanger abnormality 04 Overcurrent Therefore, while the air conditioner is operating, the fan abnormality detection circuit 4 and temperature detection that constitute abnormality detection means Circuits 5, 1
2. Each output signal from the overcurrent detection circuit 11 is introduced into the control unit 6. The control unit 6 determines whether or not an abnormality has occurred based on each output signal (step S1). If an abnormality has occurred, the process proceeds to step S2 and the display control circuit 14
The LED blinking command signal is output to. Display control circuit 14
In response to this command signal, the segment L of the display 15
Of ED, LED 21 , LED 22, LED 17 , LED
The blinking control of 27 is executed. Since such blinking of the LED can be visually recognized through the display holes 22a to 22c of the front panel 21, the user can know the abnormality such as a failure in the air conditioner by seeing the blinking. In addition,
When the air conditioner continues to operate normally, the control unit 6 causes the display control circuit 14 to display the segment LE of the display unit 15.
A command signal for turning off all the LEDs of D is output (step S3). As a result, the user can know that normal operation continues while the display is off.

【0013】次に、ユーザーが販売店に依頼して故障を
修理してもらうときには、次のようにして異常箇所を示
すコードが表示器13に表示される。すなわち、室内機
の前面パネル21が開かれると、スイッチ23が開とな
り、このときのOFF信号が制御部6に出力される。こ
の制御部6はスイッチ23からのOFF信号の受信から
前面パネル23が開かれたことを検出し(ステップS
4)、次のステップS5に進んで表示器15の表示モー
ドを異常コードを表示する表示モードに切り換える指令
信号を表示制御回路14に出力する。これにより、現状
の異常箇所が、例えば、室温を検出するセンサに異常が
生じているときには、表示器に02の数字を表示される
ようセグメントLEDが点灯する。
Next, when the user requests the dealer to repair the failure, the code indicating the abnormal portion is displayed on the display 13 as follows. That is, when the front panel 21 of the indoor unit is opened, the switch 23 is opened, and the OFF signal at this time is output to the control unit 6. The control unit 6 detects that the front panel 23 is opened from the reception of the OFF signal from the switch 23 (step S
4) Proceed to the next step S5, and output to the display control circuit 14 a command signal for switching the display mode of the display 15 to the display mode for displaying the abnormal code. As a result, the segment LED is turned on so that the number 02 is displayed on the display when the current abnormal location is abnormal, for example, in the sensor that detects room temperature.

【0014】[0014]

【発明の効果】以上の説明から明らかなように、本発明
によれば、運転中に異常が生じたときには、前面パネル
の表示孔から異常が表示され、前面パネルを開けたとき
に異常箇所に対応する異常コードが表示されるように構
成しているので、機器の異常を一目でユーザが知ること
ができるとともに、点検、修理する側にとっては異常原
因の表示が簡単に見られ故障箇所を正確に判断できるの
で、保守、修理を容易かつ迅速化することができる。
As is apparent from the above description, according to the present invention, when an abnormality occurs during operation, the abnormality is displayed through the display hole of the front panel, and when the front panel is opened, the abnormality is displayed. Since the corresponding abnormality code is displayed, the user can know at a glance the abnormality of the equipment, and the inspection and repair side can easily see the indication of the cause of the abnormality and pinpoint the fault location. Therefore, maintenance and repair can be performed easily and quickly.

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

【図1】本発明による家庭用電気機器の異常表示装置を
空気調和機に適用した一実施例の制御部の構成を示すブ
ロック図。
FIG. 1 is a block diagram showing a configuration of a control unit of an embodiment in which an abnormality display device for household electric appliances according to the present invention is applied to an air conditioner.

【図2】空気調和機の室内機における全面パネル開閉検
出手段表示手段の取付位置を示す側面図。
FIG. 2 is a side view showing a mounting position of a front panel open / close detection means display means in an indoor unit of an air conditioner.

【図3】室内機の前面パネルの表示孔と表示手段の対応
関係を示す説明図。
FIG. 3 is an explanatory diagram showing a correspondence relationship between a display hole on a front panel of an indoor unit and a display unit.

【図4】本実施例の制御部の動作を表したフローチャー
ト。
FIG. 4 is a flowchart showing the operation of the control unit of this embodiment.

【符号の説明】[Explanation of symbols]

4 ファン異常検出回路 5 温度検出回路 6 制御部 11 過電流検出回路 15 表示器 21 前面パネル 22a〜c 表示孔 23 スイッチ 4 Fan Abnormality Detection Circuit 5 Temperature Detection Circuit 6 Control Unit 11 Overcurrent Detection Circuit 15 Display 21 Front Panel 22a-c Display Hole 23 Switch

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】電気機器の各部の異常を検出する異常検出
手段と、 機器の前面パネルの裏側において前面パネルに形成した
表示孔から表示素子の一部が露呈する位置に配置され、
異常の有無の表示と異常原因に対応する異常コードの表
示との間で表示モードを切り換え可能な表示手段と、 前記前面パネルの開閉を検出する開閉検出手段と、 前記異常検出手段の出力から異常の有無を判別するとと
もに、前記開閉検出手段の検出結果に基づき前記表示手
段の表示モードを制御する制御部とを具備したことを特
徴とする家庭用電気機器の異常表示装置。
1. An abnormality detecting means for detecting an abnormality in each part of an electric device, and a position where a part of a display element is exposed from a display hole formed in the front panel on the back side of the front panel of the device,
A display unit that can switch the display mode between the display of the presence or absence of an abnormality and the display of the abnormality code corresponding to the cause of the abnormality, the opening and closing detection unit that detects opening and closing of the front panel, and the abnormality from the output of the abnormality detection unit. An abnormality display device for household electrical equipment, comprising: a control unit that determines the presence or absence of the presence / absence and controls the display mode of the display unit based on the detection result of the opening / closing detection unit.
JP4006867A 1992-01-17 1992-01-17 Abnormality display device for domestic electric equipment Pending JPH05197882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4006867A JPH05197882A (en) 1992-01-17 1992-01-17 Abnormality display device for domestic electric equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4006867A JPH05197882A (en) 1992-01-17 1992-01-17 Abnormality display device for domestic electric equipment

Publications (1)

Publication Number Publication Date
JPH05197882A true JPH05197882A (en) 1993-08-06

Family

ID=11650193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4006867A Pending JPH05197882A (en) 1992-01-17 1992-01-17 Abnormality display device for domestic electric equipment

Country Status (1)

Country Link
JP (1) JPH05197882A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007212136A (en) * 2007-05-07 2007-08-23 Fujitsu General Ltd Air conditioner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007212136A (en) * 2007-05-07 2007-08-23 Fujitsu General Ltd Air conditioner
JP4737137B2 (en) * 2007-05-07 2011-07-27 株式会社富士通ゼネラル Air conditioner

Similar Documents

Publication Publication Date Title
US5378874A (en) Diagnostic method and apparatus for a domestic appliance
US6043461A (en) Over temperature condition sensing method and apparatus for a domestic appliance
US5321229A (en) Remote control for a domestic appliance
US7532810B2 (en) Portable electrical appliance with diagnostic system
US5307050A (en) Display apparatus for a first out type of fault status annunciator having a series of interlock switches
JPH05197882A (en) Abnormality display device for domestic electric equipment
KR20190094647A (en) Wireless control type gas opening and closing device and gas management system having this same
US7197429B2 (en) Diagnosis system for household electric appliances
JPH06108502A (en) Freezing prevention device for service water piping
KR900003126B1 (en) Fault diagnostic apparatus for electric appliance
JP3288234B2 (en) Cooking device
JPH06257906A (en) Airconditioning apparatus
JPS6252347A (en) Indication of abnormality in air-conditioning machine
CN221303449U (en) Commercial inspection testing circuit and commercial inspection testing device
KR900007735B1 (en) Fault diagnostic apparatus for electric appliance
CN217715348U (en) Air conditioner fault monitoring and alarming device
JPH05346231A (en) Combustion controller
CN117330879A (en) Commercial inspection testing circuit and commercial inspection testing device
JP2518338B2 (en) Abnormality display device for refrigeration equipment
JPH07135693A (en) Hot water supply equipment
JPH05157313A (en) Trouble diagnosing device of air conditioner
JPH10220851A (en) Operation control device for air conditioner
KR100408875B1 (en) AC power supply for the protection of short circuit in the sequence-control development system
KR100452769B1 (en) Air-conditioner including circuit for warning fail-wiring
JPH07247072A (en) Indicating lamp checking device for elevator