JPH09113009A - Control device for air conditioner - Google Patents

Control device for air conditioner

Info

Publication number
JPH09113009A
JPH09113009A JP7268214A JP26821495A JPH09113009A JP H09113009 A JPH09113009 A JP H09113009A JP 7268214 A JP7268214 A JP 7268214A JP 26821495 A JP26821495 A JP 26821495A JP H09113009 A JPH09113009 A JP H09113009A
Authority
JP
Japan
Prior art keywords
fan motor
circuit
abnormality
outdoor
drive circuit
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.)
Granted
Application number
JP7268214A
Other languages
Japanese (ja)
Other versions
JP3482752B2 (en
Inventor
Toshinari Baba
俊成 馬場
Hiroyuki Unita
浩行 宇仁田
Mitsuhisa Nakai
満久 中井
Yuji Tani
祐二 谷
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP26821495A priority Critical patent/JP3482752B2/en
Publication of JPH09113009A publication Critical patent/JPH09113009A/en
Application granted granted Critical
Publication of JP3482752B2 publication Critical patent/JP3482752B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Air Conditioning Control Device (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent an erroneous judgment from being made with regard to failures in an outdoor fan motor and a fan motor driving circuit. SOLUTION: This control device comprises a fan motor 1, a driving circuit 2 for driving the fan motor 1, a control circuit 5 for controlling the driving circuit 2, an abnormality detecting circuit 3 for detecting an out-of-step and an overcurrent of the fan motor 1 and a headwind detecting circuit 4 for detecting headwind against the fan motor 1. An abnormality signal is transmitted to an indoor unit only when an abnormality are detected not less than specified times in an outdoor unit, and a judgment that the fan motor 1 and the driving circuit 2 have failed is made only when the abnormality signal is received more than one time.

Description

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

【0001】[0001]

【発明の属する技術分野】本発明は、空気調和機の制御
装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for an air conditioner.

【0002】[0002]

【従来の技術】従来、室外機のファンモーターの異常検
出は、図6のフローチャートに示すとおり、(a)でフ
ァンモーター及び駆動回路の異常を検出した場合は、即
時に(b)で室内機に異常信号を送っていた。
2. Description of the Related Art Conventionally, when detecting an abnormality in a fan motor and a drive circuit in (a), an abnormality in the fan motor of an outdoor unit is immediately detected in (b) as shown in the flowchart of FIG. Was sending an abnormal signal to.

【0003】また、従来は、室外機用のファンモーター
には、モーター内部のロータ位置検出用センサを用いて
モーター駆動を行っていたので、モーターへの逆風に対
する配慮があまり必要なかった。
Further, conventionally, a fan motor for an outdoor unit is driven by a rotor position detecting sensor inside the motor, so that consideration of back wind to the motor is not necessary.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、今回、
室外機にロータ位置検出用センサを用いないモーターを
用いるため、ロータの位置を直接検出する手段がなく、
逆風の影響を受けやすいため、従来の制御のままでは、
逆風の影響によりファンモーターが停止したにもかかわ
らず、ファンモーター及びファンモーター駆動回路の故
障と判断してしまうといった、誤判定の恐れがあった。
[Problems to be Solved by the Invention] However, this time,
Since a motor that does not use a rotor position detection sensor is used for the outdoor unit, there is no means for directly detecting the rotor position,
Since it is easily affected by headwind, if conventional control is used,
Although the fan motor stopped due to the influence of the backwind, there was a risk of misjudgment such that the fan motor and the fan motor drive circuit were judged to be defective.

【0005】本発明は室外機ファンモーター及びファン
モーター駆動回路の故障検知の誤判定の防止を目的とす
る。
An object of the present invention is to prevent erroneous determination of failure detection of an outdoor unit fan motor and a fan motor drive circuit.

【0006】[0006]

【課題を解決するための手段】上記課題を解決するため
に本発明は、室外機で一定回数以上の異常を検知した場
合のみ室内機へ異常信号を送り、更に、室内機で複数回
数の異常信号を検知した場合にのみ、ファンモーター及
びファンモーター駆動回路の故障と判定するものであ
る。
In order to solve the above-mentioned problems, the present invention sends an abnormality signal to an indoor unit only when an abnormality is detected in the outdoor unit a certain number of times or more, and further, an abnormality signal is output a plurality of times in the indoor unit. Only when a signal is detected, it is determined that the fan motor and the fan motor drive circuit have failed.

【0007】また、本発明は、ファンモーター駆動後、
一定時間連続してファンモーターが正常運転した場合に
のみ、室外機でカウントした異常検知回数をクリアする
ものである。
Further, according to the present invention, after driving the fan motor,
Only when the fan motor operates normally for a certain period of time, the number of times of abnormality detection counted by the outdoor unit is cleared.

【0008】また、本発明は、ファンモーター駆動後、
異常検出回路が異常を検出した場合、ファンモーターを
一定時間異常停止を行う構成において、異常停止時間中
に逆風検知回路が逆風を検知した場合は、室外機でカウ
ントした異常検知回数をクリアするものである。
Further, according to the present invention, after the fan motor is driven,
When the anomaly detection circuit detects an anomaly and the fan motor is abnormally stopped for a certain period of time, if the backwind detection circuit detects backwind during the abnormal stop time, the number of abnormalities detected by the outdoor unit is cleared. Is.

【0009】そして、本発明は、前回の異常検出時より
一定時間連続してファンモーターが正常運転した場合に
のみ、室外機でカウントした異常検知回数をクリアする
ものである。
The present invention clears the number of times of abnormality detection counted by the outdoor unit only when the fan motor is normally operated continuously for a certain period of time after the previous abnormality detection.

【0010】[0010]

【発明の実施の形態】上記手段による作用は、以下のと
おりである。
BEST MODE FOR CARRYING OUT THE INVENTION The operation of the above means is as follows.

【0011】本発明は、室外機で一定回数以上の異常を
検知した場合のみ室内機へ異常信号を送り、更に、室内
機で複数回数の異常信号を検知した場合にのみ、ファン
モーター及びファンモーター駆動回路の故障と判定する
ことにより、ファンモーター及び駆動回路の故障に対す
る誤判定を防止することができる。
The present invention sends an abnormality signal to the indoor unit only when the outdoor unit detects an abnormality a certain number of times or more, and further, only when the abnormality signal is detected a plurality of times in the indoor unit, the fan motor and the fan motor. By determining the failure of the drive circuit, it is possible to prevent an erroneous determination for the failure of the fan motor and the drive circuit.

【0012】また、本発明は、ファンモーター駆動後、
一定時間連続してファンモーターが正常運転した場合に
のみ、室外機でカウントした異常検知回数をクリアする
ことにより、そして、前回の異常検出時より一定時間連
続してファンモーターが正常運転した場合にのみ、室外
機でカウントした異常検知回数をクリアすることによ
り、クリア条件を追加して、ファンモーター及び駆動回
路の故障に対する誤判定防止の精度アップを更にはかる
ことができる。
In addition, according to the present invention, after the fan motor is driven,
Only when the fan motor is operating normally for a certain period of time, clear the error detection count of the outdoor unit, and when the fan motor is operating normally for a certain period of time after the previous abnormality detection. Only, by clearing the number of times of abnormality detection counted by the outdoor unit, it is possible to add a clear condition and further improve the accuracy of erroneous determination prevention for a failure of the fan motor and the drive circuit.

【0013】そして、本発明は、ファンモーターが異常
停止時間中に逆風検知回路が逆風を検知した場合は、室
外機でカウントした異常検知回数をクリアすることによ
り、強い逆風が生じた場合に、確実に誤判定を防ぐこと
ができる。
Further, according to the present invention, when the backwind detection circuit detects backwind during the abnormal stop time of the fan motor, the number of times of abnormality detection counted by the outdoor unit is cleared to generate a strong backwind. It is possible to reliably prevent erroneous determination.

【0014】[0014]

【実施例】以下、本発明の一実施例について添付図面に
基づいて説明する。
An embodiment of the present invention will be described below with reference to the accompanying drawings.

【0015】本発明の空気調和機の制御装置の構成図を
図1に示す。1はファンモーター、2はファンモーター
駆動回路、3は脱調及び過電流を検出する異常検出回
路、4はファンモーターに対する逆風を検知する逆風検
知回路、5は室外制御回路、6は室外通信回路であり、
これらは全て室外機にて構成されており、また、7は室
内通信回路、8は室内制御回路であり、これらは全て室
内機に構成されている。
FIG. 1 shows a block diagram of a control device for an air conditioner according to the present invention. 1 is a fan motor, 2 is a fan motor drive circuit, 3 is an abnormality detection circuit that detects out-of-step and overcurrent, 4 is a backwind detection circuit that detects backwind to the fan motor, 5 is an outdoor control circuit, and 6 is an outdoor communication circuit And
These are all configured by an outdoor unit, 7 is an indoor communication circuit, 8 is an indoor control circuit, and these are all configured by an indoor unit.

【0016】第1実施例を図1、図2において説明す
る。室外ファンモーター1はファンモーター駆動回路2
により駆動されるが、ファンモーター1または駆動回路
2が故障した場合、ファンモーターが脱調したり、ファ
ンモーター及び駆動回路に流れる電流が大きくなるので
これらを異常検出回路3で検出し、それぞれの検知回数
を室外制御回路5でカウントする。そして、(a)脱調
をA回検知した場合、または、(b)過電流をB回検知
した場合に、(c)室外異常検知回数をカウントアップ
を行う。但し、台風時などの強い逆風時などにファンモ
ーターを駆動させた場合にも、脱調及び過電流を検出す
る可能性があるため、ファンモーター及び駆動回路の故
障を誤判定しないように、ファンモーター及び駆動回路
が故障した場合には脱調や過電流の検知が頻繁に起こる
ことを利用して、(d)で室外異常検出回数がC回以上
か判断し、室外異常検知回数がC回以上になることによ
り、(e)のように始めて異常信号を室内制御回路8へ
室外通信回路6及び室内通信回路7を通じて送信する。
そして、(f)で、室内制御回路8で異常信号が一定時
間内にD回以上送信されたかを判断し、(g)のよう
に、室内制御回路8では異常信号が一定時間内にD回以
上室内制御回路8へ送信されて始めて、室外ファンモー
ター及び駆動回路の故障と判断する。このように、二
重、三重の保護を行い、ファンモーター及び駆動回路故
障の誤判定防止を行う。
A first embodiment will be described with reference to FIGS. The outdoor fan motor 1 is a fan motor drive circuit 2
When the fan motor 1 or the drive circuit 2 fails, the fan motor goes out of step, or the current flowing through the fan motor and the drive circuit becomes large. Therefore, these are detected by the abnormality detection circuit 3 and The number of detections is counted by the outdoor control circuit 5. Then, (a) when out-of-step is detected A times or (b) when overcurrent is detected B times, (c) the number of outdoor abnormality detections is counted up. However, even if the fan motor is driven during strong back wind such as typhoon, step-out and overcurrent may be detected. When the motor and drive circuit break down, the frequent occurrence of step-out and overcurrent detection is used to determine whether the number of outdoor abnormality detections is C or more in (d), and the number of outdoor abnormality detections is C. Due to the above, the abnormal signal is transmitted to the indoor control circuit 8 through the outdoor communication circuit 6 and the indoor communication circuit 7 for the first time as shown in (e).
Then, in (f), the indoor control circuit 8 determines whether the abnormal signal has been transmitted D times or more within a fixed time, and as shown in (g), the indoor control circuit 8 outputs the abnormal signal D times within a fixed time. Only after being transmitted to the indoor control circuit 8, it is determined that the outdoor fan motor and the drive circuit have failed. In this way, double and triple protection is performed to prevent erroneous determination of fan motor and drive circuit failure.

【0017】次に第2の実施例について、図1、図3に
おいて、説明を行う。室外ファンモーター1はファンモ
ーター駆動回路2により駆動されるが、ファンモーター
1または駆動回路2が故障した場合、ファンモーターが
脱調したり、ファンモーター及び駆動回路に流れる電流
が大きくなるのでこれらを異常検出回路3で検出し、そ
れぞれの検知回数を室外制御回路5でカウントする。そ
して、(c)脱調をA回検知した場合、または、(d)
過電流をB回検知した場合に、(e)室外異常検知回数
をカウントアップを行う。但し、台風時などの強い逆風
時などにファンモーターを駆動させた場合にも、脱調及
び過電流を検出する可能性があるため、ファンモーター
及び駆動回路の故障を誤判定しないように、ファンモー
ター及び駆動回路が故障した場合には脱調や過電流の検
知が頻繁に起こることを利用して、(f)で室外異常検
出回数がC回以上か判断し、室外異常検知回数がC回以
上になることにより、(g)のように始めて異常信号を
室内制御回路8へ室外通信回路6及び室内通信回路7を
通じて送信する。そして、さらに、(a)で室外ファン
モーター駆動後、一定時間連続してファンモーターが正
常運転したかどうかを判断し、室外ファンモーター駆動
後、一定時間連続してファンモーターが正常運転した場
合にのみ、(b)で異常検知回数をクリアすることによ
り、更に、ファンモーター及び駆動回路故障の誤判定防
止の精度アップをはかる。
Next, a second embodiment will be described with reference to FIGS. The outdoor fan motor 1 is driven by the fan motor drive circuit 2. However, if the fan motor 1 or the drive circuit 2 fails, the fan motor goes out of step or the current flowing through the fan motor and the drive circuit becomes large. The abnormality detection circuit 3 detects the number of detections, and the outdoor control circuit 5 counts the number of detections. Then, (c) when the step-out is detected A times, or (d)
When the overcurrent is detected B times, (e) the number of outdoor abnormality detections is counted up. However, even if the fan motor is driven during strong back wind such as typhoon, step-out and overcurrent may be detected. Utilizing the fact that if the motor and drive circuit break down, detection of out-of-step or overcurrent occurs frequently. It is judged in (f) whether the number of outdoor abnormality detections is C or more, and the number of outdoor abnormality detections is C. Due to the above, an abnormal signal is transmitted to the indoor control circuit 8 through the outdoor communication circuit 6 and the indoor communication circuit 7 for the first time as shown in (g). Further, in (a), it is determined whether the fan motor has normally operated continuously for a certain period of time after driving the outdoor fan motor, and when the fan motor normally operates continuously for a certain period of time after driving the outdoor fan motor, Only by clearing the number of times of abnormality detection in (b), it is possible to further improve the accuracy of erroneous determination of fan motor and drive circuit failure.

【0018】次に第3の実施例について図1、図4にお
いて説明を行う。室外ファンモーター1はファンモータ
ー駆動回路2により駆動されるが、ファンモーター1ま
たは駆動回路2が故障した場合、ファンモーターが脱調
したり、ファンモーター及び駆動回路に流れる電流が大
きくなるのでこれらを異常検出回路5でカウントする。
そして、(d)脱調をA回検知した場合、または、
(e)過電流をB回検知した場合に、(f)室外異常検
知回数をカウントアップを行う。但し、台風時などの強
い逆風時などにファンモーターを駆動させた場合にも、
脱調及び過電流を検出する可能性があるため、ファンモ
ーター及び駆動回路の故障を誤判定しないように、ファ
ンモーター及び駆動回路が故障した場合には脱調や過電
流の検知が頻繁に起こることを利用して、(g)で室外
異常検出回数がC回以上か判断し、室外異常検知回数が
C回以上になることにより、(h)のように始めて異常
信号を室内制御回路8へ室外通信回路6及び室内通信回
路7を通じて送信する。そして、さらに、(f)で異常
検出回数をカウントアップする時に、ファンモーターを
一定時間異常停止させ、(a)、(b)で異常停止時間
中に逆風検知回路5が逆風を検知した場合は、今までの
異常検出の逆風によるものであると考えて、(c)で異
常検知回数をクリアすることにより、更に、ファンモー
ター及び駆動回路故障の誤判定防止の精度アップを行
う。
Next, a third embodiment will be described with reference to FIGS. The outdoor fan motor 1 is driven by the fan motor drive circuit 2. However, if the fan motor 1 or the drive circuit 2 fails, the fan motor goes out of step or the current flowing through the fan motor and the drive circuit becomes large. The abnormality detection circuit 5 counts.
And (d) when the step-out is detected A times, or
(E) When the overcurrent is detected B times, (f) the number of outdoor abnormality detections is counted up. However, even when the fan motor is driven during a strong headwind such as a typhoon,
Since there is a possibility of detecting out-of-step and overcurrent, step-out and overcurrent detection frequently occur when the fan motor and drive circuit fail, so as not to misjudge the failure of the fan motor and drive circuit. By using this, it is judged in (g) whether the number of outdoor abnormality detections is C or more, and when the number of outdoor abnormality detections is C or more, an abnormal signal is first sent to the indoor control circuit 8 as shown in (h). It transmits through the outdoor communication circuit 6 and the indoor communication circuit 7. Further, when the fan motor is abnormally stopped for a predetermined time when the number of times of abnormality detection is counted up in (f), and the backwind detection circuit 5 detects backwind during the abnormal stop time in (a) and (b), It is considered that it is due to the adverse wind of the abnormality detection so far, and the accuracy of prevention of erroneous determination of fan motor and drive circuit failure is further improved by clearing the number of abnormality detections in (c).

【0019】次に第4の実施例について図1、図5にお
いて説明を行う。室外ファンモーター1はファンモータ
ー駆動回路2により駆動されるが、ファンモーター1ま
たは駆動回路2が故障した場合、ファンモーターが脱調
したり、ファンモーター及び駆動回路に流れる電流が大
きくなるのでこれらを異常検出回路3で検出し、それぞ
れの検知回数を室外制御回路5でカウントする。そし
て、(c)脱調をA回検知した場合、または、(d)過
電流をB回検知した場合に、(e)室外異常検知回数を
カウントアップを行う。但し、台風時などの強い逆風時
などにファンモーターを駆動させた場合にも、脱調及び
過電流を検出する可能性があるため、ファンモーター及
び駆動回路の故障を誤判定しないように、ファンモータ
ー及び駆動回路が故障した場合には脱調や過電流の検知
が頻繁に起こることを利用して、(f)で室外異常検出
回数がC回以上か判断し、室外異常検知回数がC回以上
になることにより、(g)のように始めて異常信号を室
内制御回路8へ室外通信回路6及び室内通信回路7を通
じて送信する。そして、さらに、(a)で前回の異常検
知回数カウントアップ時より、一定時間連続してファン
モーターが正常運転したかを判断し、前回の異常検知回
数カウントアップ時より、一定時間連続してファンモー
ターが正常運転した場合にのみ、(b)で異常検知回数
をクリアすることにより、更に、ファンモーター及び駆
動回路故障の誤判定の防止を行う。
Next, a fourth embodiment will be described with reference to FIGS. The outdoor fan motor 1 is driven by the fan motor drive circuit 2. However, if the fan motor 1 or the drive circuit 2 fails, the fan motor goes out of step or the current flowing through the fan motor and the drive circuit becomes large. The abnormality detection circuit 3 detects the number of detections, and the outdoor control circuit 5 counts the number of detections. Then, (c) when out-of-step is detected A times or (d) when overcurrent is detected B times, (e) the number of outdoor abnormality detections is counted up. However, even if the fan motor is driven during strong back wind such as typhoon, step-out and overcurrent may be detected. Utilizing the fact that if the motor and drive circuit break down, detection of out-of-step or overcurrent occurs frequently. It is judged in (f) whether the number of outdoor abnormality detections is C or more, and the number of outdoor abnormality detections is C. Due to the above, an abnormal signal is transmitted to the indoor control circuit 8 through the outdoor communication circuit 6 and the indoor communication circuit 7 for the first time as shown in (g). Then, in (a), it is determined whether the fan motor has been operating normally for a certain period of time since the previous abnormality detection count was counted up. Only when the motor operates normally, the number of times of abnormality detection is cleared in (b) to further prevent erroneous determination of fan motor and drive circuit failure.

【0020】[0020]

【発明の効果】上記実施例より明らかなように、本発明
を用いれば、室外機で一定回数以上の異常を検知した場
合のみ室内機へ異常信号を送り、更に、室内機で複数回
数の異常信号を検知した場合にのみ、ファンモーター及
びファンモーター駆動回路の故障と判定することによ
り、ファンモーター及び駆動回路の故障に対する誤判定
を防止することができる。
As is apparent from the above-described embodiments, according to the present invention, an abnormal signal is sent to the indoor unit only when the outdoor unit detects an abnormality more than a certain number of times, and further, the indoor unit receives the abnormality multiple times. By determining that the fan motor and the fan motor drive circuit have failed only when the signal is detected, it is possible to prevent an erroneous determination of the fan motor and the drive circuit failure.

【0021】また、ファンモーター駆動後、一定時間連
続してファンモーターが正常運転した場合にのみ、室外
機でカウントした異常検知回数をクリアすることによ
り、そして、前回の異常検出時より一定時間連続してフ
ァンモーターが正常運転した場合にのみ、室外機でカウ
ントした異常検知回数をクリアすることにより、クリア
条件を追加して、ファンモーター及び駆動回路の故障に
対する誤判定防止の精度アップを更にはかることができ
る。
Further, after the fan motor is driven, only when the fan motor normally operates continuously for a certain period of time, the number of times of abnormality detection counted by the outdoor unit is cleared, and for a certain period of time after the previous abnormality detection. Only when the fan motor is operating normally, clear the abnormal detection count of the outdoor unit to add a clear condition to further improve the accuracy of erroneous determination prevention for fan motor and drive circuit failures. be able to.

【0022】そして、ファンモーターが異常停止時間中
に逆風検知回路が逆風を検知した場合は、室外機でカウ
ントした異常検知回数をクリアすることにより、強い逆
風が生じた場合に、確実に誤判定を防ぐことができる。
If the backwind detection circuit detects a backwind during the abnormal stop time of the fan motor, by clearing the number of times of abnormality detection counted by the outdoor unit, it is possible to reliably make an erroneous determination when a strong backwind occurs. Can be prevented.

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

【図1】本発明の第1の実施例における空気調和機の制
御装置の構成図
FIG. 1 is a configuration diagram of a control device for an air conditioner according to a first embodiment of the present invention.

【図2】本発明の第1の実施例における空気調和機の制
御装置のフローチャート
FIG. 2 is a flowchart of a control device for an air conditioner according to the first embodiment of the present invention.

【図3】本発明の第2の実施例における空気調和機の制
御装置のフローチャート
FIG. 3 is a flowchart of a control device for an air conditioner according to a second embodiment of the present invention.

【図4】本発明の第3の実施例における空気調和機の制
御装置のフローチャート
FIG. 4 is a flowchart of an air conditioner control device according to a third embodiment of the present invention.

【図5】本発明の第4の実施例における空気調和機の制
御装置のフローチャート
FIG. 5 is a flowchart of an air conditioner control device according to a fourth embodiment of the present invention.

【図6】本発明の従来例におけるフローチャートFIG. 6 is a flowchart in a conventional example of the present invention.

【符号の説明】[Explanation of symbols]

1 ファンモーター 2 ファンモーター駆動回路 3 異常検出回路 4 逆風検知回路 5 室外制御回路 6 室外通信回路 7 室内通信回路 8 室内制御回路 1 Fan Motor 2 Fan Motor Drive Circuit 3 Abnormality Detection Circuit 4 Backwind Detection Circuit 5 Outdoor Control Circuit 6 Outdoor Communication Circuit 7 Indoor Communication Circuit 8 Indoor Control Circuit

───────────────────────────────────────────────────── フロントページの続き (72)発明者 谷 祐二 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuji Tani 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】ファンモーターと、前記ファンモーターを
駆動する駆動回路と、前記駆動回路を制御する制御回路
と、前記ファンモーターの脱調及び過電流を検知する異
常検出回路と、前記ファンモーターに対する逆風を検知
する逆風検知回路を具備し、室外機で一定回数以上の異
常を検知した場合のみ室内機へ異常信号を送り、更に、
前記室内機で複数回数の異常信号を検知した場合にの
み、前記ファンモーター及び駆動回路の故障と判定する
ことを特徴とした空気調和機の制御装置。
1. A fan motor, a drive circuit for driving the fan motor, a control circuit for controlling the drive circuit, an abnormality detection circuit for detecting out-of-step and overcurrent of the fan motor, and a fan circuit for the fan motor. Equipped with a back wind detection circuit that detects back wind, sends an abnormal signal to the indoor unit only when the outdoor unit detects an error for a certain number of times or more.
An air conditioner control device characterized in that it is determined that the fan motor and the drive circuit have failed only when an abnormal signal is detected a plurality of times by the indoor unit.
【請求項2】ファンモーター駆動後、一定時間連続して
前記ファンモーターが正常運転した場合にのみ、室外機
でカウントした異常検知回数をクリアすることを特徴と
した請求項1記載の空気調和機の制御装置。
2. The air conditioner according to claim 1, wherein the number of times of abnormality detection counted by the outdoor unit is cleared only when the fan motor normally operates continuously for a certain period of time after the fan motor is driven. Control device.
【請求項3】ファンモーター駆動後、異常検出回路が異
常を検出した場合、前記ファンモーターを一定時間異常
停止を行う構成において、異常停止時間中に逆風検知回
路が逆風を検知した場合は、室外機でカウントした異常
検知回数をクリアすることを特徴とした請求項1記載の
空気調和機の制御装置。
3. When the abnormality detection circuit detects an abnormality after the fan motor is driven, the fan motor is abnormally stopped for a certain period of time. The control device for an air conditioner according to claim 1, wherein the number of times of abnormality detection counted by the machine is cleared.
【請求項4】前回の異常検出時より一定時間連続してフ
ァンモーターが正常運転した場合にのみ、室外機でカウ
ントした異常検知回数をクリアすることを特徴とした請
求項1記載の空気調和機の制御装置。
4. The air conditioner according to claim 1, wherein the number of times of abnormality detection counted by the outdoor unit is cleared only when the fan motor normally operates continuously for a certain period of time since the previous abnormality detection. Control device.
JP26821495A 1995-10-17 1995-10-17 Control device for air conditioner Expired - Fee Related JP3482752B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26821495A JP3482752B2 (en) 1995-10-17 1995-10-17 Control device for air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26821495A JP3482752B2 (en) 1995-10-17 1995-10-17 Control device for air conditioner

Publications (2)

Publication Number Publication Date
JPH09113009A true JPH09113009A (en) 1997-05-02
JP3482752B2 JP3482752B2 (en) 2004-01-06

Family

ID=17455507

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26821495A Expired - Fee Related JP3482752B2 (en) 1995-10-17 1995-10-17 Control device for air conditioner

Country Status (1)

Country Link
JP (1) JP3482752B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11159827A (en) * 1997-08-22 1999-06-15 Mitsubishi Electric Corp Heat storage equipment add operating method thereof
JP2007139202A (en) * 2005-11-14 2007-06-07 Denso Corp Control device
JP2012141110A (en) * 2011-01-05 2012-07-26 Mitsubishi Electric Corp Air conditioning management apparatus, air conditioning management method, and program
CN109139528A (en) * 2018-09-25 2019-01-04 东莞市觅智实业有限公司 A kind of fan detection system and detection method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11159827A (en) * 1997-08-22 1999-06-15 Mitsubishi Electric Corp Heat storage equipment add operating method thereof
JP2007139202A (en) * 2005-11-14 2007-06-07 Denso Corp Control device
JP4572813B2 (en) * 2005-11-14 2010-11-04 株式会社デンソー Control device
JP2012141110A (en) * 2011-01-05 2012-07-26 Mitsubishi Electric Corp Air conditioning management apparatus, air conditioning management method, and program
CN109139528A (en) * 2018-09-25 2019-01-04 东莞市觅智实业有限公司 A kind of fan detection system and detection method
CN109139528B (en) * 2018-09-25 2024-03-22 东莞市觅智智能家居有限公司 Fan detection system and detection method

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