JP2005249338A - Wiring error detecting method for air-conditioner - Google Patents

Wiring error detecting method for air-conditioner Download PDF

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JP2005249338A
JP2005249338A JP2004062406A JP2004062406A JP2005249338A JP 2005249338 A JP2005249338 A JP 2005249338A JP 2004062406 A JP2004062406 A JP 2004062406A JP 2004062406 A JP2004062406 A JP 2004062406A JP 2005249338 A JP2005249338 A JP 2005249338A
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compressor
relay
way valve
outdoor unit
wiring
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Kazuyuki Katayama
和幸 片山
Shigenobu Mochizuki
重伸 望月
Kazuhiro Kazama
和広 風間
Hiroyasu Yamada
浩尉 山田
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive wiring error detecting method for an air-conditioner, simplifying the detection of an wiring error for protecting electric parts including relays. <P>SOLUTION: The air-conditioner has an indoor unit 1 having a compressor relay 3, a fan motor relays 4 and a four-way valve relay 5 connected to a power source 6 and an outdoor unit 11 having a compressor 13, a fan motor 14 and a four-way valve 15 connected to the compressor relay 3, the fan motor relay 4 and the four-way valve relay 5, respectively, and driven. The condition of the compressor relay 3 and the compressor 13 being connected to each other is detected in accordance with a temperature change of the indoor unit 1 or the outdoor unit 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、室内熱交換器と室外熱交換器とを有する空気調和機の誤配線検知方法に関するものである。   The present invention relates to an erroneous wiring detection method for an air conditioner having an indoor heat exchanger and an outdoor heat exchanger.

室内熱交換器と室外熱交換器とを有する空気調和機において、据付時に誤って配線されたまま運転を開始すると、四方弁駆動用のリレーあるいはファンモータ駆動用リレーにより電源と圧縮機が接続されてこれらリレーに過電流が流れ、リレー等の部品が破損して製品の機能に支障を来すという問題がある。   In an air conditioner having an indoor heat exchanger and an outdoor heat exchanger, when operation is started with incorrect wiring during installation, the power supply and compressor are connected by a relay for driving a four-way valve or a relay for driving a fan motor. As a result, overcurrent flows through these relays, and the components such as the relays are damaged, which hinders the function of the product.

このような問題を解消するために、室内機の接続部と室外機の接続部とを接続した後、電源を投入して圧縮機用リレーをオンし、その後、電流センサにより室外機の入力電流を検出する。そして、入力電流判別部により電流センサにより検出された入力電流が所定電流値以上か否かを判別し、電流センサにより検出された入力電流が所定電流値以上のときは室内機の接続部と室外機の接続部との接続が正常であるとし、入力電流判別部により電流センサにより検出された入力電流が所定電流値未満のときは異常通知部により誤配線であることを通知するようにした空気調和機の誤配線検知方法が提案されている（例えば、特許文献１参照）。
特開２０００−１８６８６号公報（第３−４頁、図１） In order to solve such problems, after connecting the connection part of the indoor unit and the connection part of the outdoor unit, the power is turned on and the compressor relay is turned on, and then the input current of the outdoor unit is detected by the current sensor. Is detected. Then, the input current discriminating unit discriminates whether or not the input current detected by the current sensor is equal to or greater than a predetermined current value, and when the input current detected by the current sensor is equal to or greater than the predetermined current value, When the input current detected by the current sensor by the input current discriminating unit is less than the predetermined current value, the abnormality notifying unit notifies that the wiring is incorrect. An incorrect wiring detection method for a harmony machine has been proposed (see, for example, Patent Document 1).
JP 2000-18686 A (page 3-4, FIG. 1)

特許文献１の誤配線検知方法は、電源と圧縮機との間に電流センサを接続しなければならないので、構造が複雑になるばかりでなく、コストアップを招来するという問題がある。   The erroneous wiring detection method of Patent Document 1 has a problem that not only the structure is complicated but also the cost is increased because a current sensor must be connected between the power source and the compressor.

本発明は、上記の課題を解決するためになされたもので、電流センサの如き別部品を設けることなく、簡単に誤配線を検知することができ、リレーを含む電気部品を保護することのできる安価な空気調和機の誤配線検知方法を提供することを目的としたものである。   The present invention has been made to solve the above-described problems, and can easily detect miswiring and protect electrical components including a relay without providing a separate component such as a current sensor. An object of the present invention is to provide an inexpensive method of detecting an incorrect wiring of an air conditioner.

本発明に係る電気調和機の誤配線検知方法は、電源に接続された圧縮機用リレー、ファンモータ用リレー及び四方弁用リレーを有する室内機と、前記圧縮機用リレー、ファンモータ用リレー及び四方弁用リレーにそれぞれ接続されて駆動される圧縮機、ファンモータ及び四方弁を有する室外機とを備え、前記圧縮機用リレーと圧縮機との接続状態を前記室内機又は室外機の温度変化によって検知するようにしたものである。   The method for detecting an incorrect wiring of an electric conditioner according to the present invention includes a compressor relay, a fan motor relay, and a four-way valve relay connected to a power source, the compressor relay, the fan motor relay, An outdoor unit having a compressor, a fan motor, and a four-way valve connected to and driven by a four-way valve relay, respectively, and a change in temperature of the indoor unit or the outdoor unit according to the connection state between the compressor relay and the compressor. Is to be detected.

本発明は、電流センサの如き別部品を付加することなく簡単に誤配線を検知することができるので、コストが上昇することなく圧縮機用リレー以外のリレー及び電気回路を保護することができ、また、圧縮機用リレー以外のリレーを負荷に見合ったものにできるので、コストを低減することができる。   Since the present invention can easily detect miswiring without adding another component such as a current sensor, it can protect relays and electric circuits other than the compressor relay without increasing the cost, Moreover, since relays other than the relay for compressors can be made according to load, cost can be reduced.

［実施の形態１］
図１は本発明の実施の形態１に係る空気調和機の概略配線図、図２は図１の空気調和機の概略構成を示すブロック図である。
図２において、１は室内熱交換器（以下、室内機という）、２は室内機１の温度を検出する温度センサ、１１は室外熱交換器（以下、室外機という）、１２は室外機１１の温度を検出する温度センサである。１３は室外機１１に設けられた圧縮機、１５は同じく四方弁で、これらは配管により接続されている。 [Embodiment 1]
1 is a schematic wiring diagram of an air conditioner according to Embodiment 1 of the present invention, and FIG. 2 is a block diagram showing a schematic configuration of the air conditioner of FIG.
In FIG. 2, 1 is an indoor heat exchanger (hereinafter referred to as an indoor unit), 2 is a temperature sensor for detecting the temperature of the indoor unit 1, 11 is an outdoor heat exchanger (hereinafter referred to as an outdoor unit), and 12 is an outdoor unit 11. It is a temperature sensor that detects the temperature of 13 is a compressor provided in the outdoor unit 11, 15 is also a four-way valve, and these are connected by piping.

また、図１において、７は室内機１の端子台、１６は室外機１１の端子台で、それぞれ端子Ａ1〜Ａ4、Ｂ1〜Ｂ4を備えており、電源６に接続された端子Ａ1は配線２１ａを介して端子Ｂ1に接続され、電源回路を形成している。
３は一端が電源６に接続され、他端が端子Ａ2に接続された圧縮機駆動用のリレー（以下、圧縮機用リレーという）で、端子Ａ2は配線２１ｂを介して室外機１１の端子Ｂ2に接続され、端子Ｂ2は圧縮機１３に接続されている。 In FIG. 1, 7 is a terminal block of the indoor unit 1, and 16 is a terminal block of the outdoor unit 11, each having terminals A 1 to A 4 and B 1 to B 4 , and terminals connected to the power source 6. A 1 is connected to the terminal B 1 via the wiring 21a to form a power supply circuit.
Reference numeral 3 denotes a compressor driving relay having one end connected to the power source 6 and the other end connected to the terminal A 2 (hereinafter referred to as a compressor relay). The terminal A 2 is connected to the outdoor unit 11 via the wiring 21b. is connected to the terminal B 2, terminal B 2 is connected to the compressor 13.

４は同じく端子Ａ3に接続されたファンモータ駆動用のリレー（以下、ファンモータ用リレーという）で、端子Ａ3は配線２１ｃを介して室外機１１の端子Ｂ3に接続され、端子Ｂ3はファンモータ１４に接続されている。また、５は同じく端子Ａ4に接続された四方弁駆動用のリレー（以下、四方弁用リレーという）で、端子Ａ4は配線２１ｄを介して室外機１１の端子Ｂ4に接続され、端子Ｂ4は四方弁１５に接続されている。８は圧縮機用リレー３、ファンモータ用リレー４、四方弁用リレー５などを制御する制御部である。なお、圧縮機１３には、ファンモータ１４、四方弁１５より大きな駆動電流が供給されるようになっている。 4 also relays for connection to a fan motor drive that the terminal A 3 (hereinafter, the fan that the motor relay), the terminal A 3 is connected to a terminal B 3 of the outdoor unit 11 via the wiring 21c, the terminal B 3 Is connected to the fan motor 14. Further, 5 also relays for the connected four-way valve drive to the terminal A 4 (hereinafter, referred to as four-way valve relay), the terminal A 4 is connected to the terminal B 4 of the outdoor unit 11 through the wiring 21d, terminals B 4 is connected to the four-way valve 15. A control unit 8 controls the compressor relay 3, the fan motor relay 4, the four-way valve relay 5, and the like. The compressor 13 is supplied with a driving current larger than that of the fan motor 14 and the four-way valve 15.

上記のような空気調和機において、冷房運転時は、冷媒は図２に実線矢印で示すように流れる。すなわち、圧縮機１３で圧縮されたガス冷媒は四方弁１５の実線経路を経て室外機１１に流入する。ガス冷媒は室外機１１で外気と熱交換されて液冷媒となる。室外機１１から流出した液冷媒は減圧されて低温低圧液冷媒となって室内機１に送られ、室内の空気と熱交換を行うことにより蒸発したガス冷媒は、四方弁１５を経て圧縮機１３に送られ、再び圧縮される。なお、このとき、室内機１の温度は熱交換により低下し、室外機１１の温度は上昇する。   In the air conditioner as described above, during the cooling operation, the refrigerant flows as shown by solid line arrows in FIG. That is, the gas refrigerant compressed by the compressor 13 flows into the outdoor unit 11 through the solid line path of the four-way valve 15. The gas refrigerant exchanges heat with the outside air in the outdoor unit 11 and becomes liquid refrigerant. The liquid refrigerant flowing out of the outdoor unit 11 is reduced in pressure to be sent to the indoor unit 1 as a low-temperature low-pressure liquid refrigerant, and the gas refrigerant evaporated by exchanging heat with the indoor air passes through the four-way valve 15 and is compressed by the compressor 13. To be compressed again. At this time, the temperature of the indoor unit 1 decreases due to heat exchange, and the temperature of the outdoor unit 11 increases.

また、暖房運転時は、冷房運転の場合と同様に圧縮機１３で圧縮されたガス冷媒は、四方弁１５の破線経路を経て破線矢印で示すように冷房運転の場合と逆方向に流れる。そして、室内機１で熱交換されて液冷媒となる。室内機１から流出した液冷媒は減圧されて低温低圧液冷媒となって室外機１１に送られ、外気と熱交換されてガス冷媒となり、四方弁１５を経て圧縮機１３に送られ、再び圧縮される。このとき、室内機１の温度は熱交換により上昇し、室外機１１の温度は低下する。   Further, during the heating operation, the gas refrigerant compressed by the compressor 13 flows in the opposite direction to that in the cooling operation as indicated by the broken line arrow through the broken line path of the four-way valve 15 as in the cooling operation. Then, heat is exchanged in the indoor unit 1 to become a liquid refrigerant. The liquid refrigerant flowing out of the indoor unit 1 is depressurized to be sent to the outdoor unit 11 as low-temperature low-pressure liquid refrigerant, exchanged heat with the outside air to become gas refrigerant, sent to the compressor 13 through the four-way valve 15, and compressed again. Is done. At this time, the temperature of the indoor unit 1 increases due to heat exchange, and the temperature of the outdoor unit 11 decreases.

次に、上記のように構成した本実施の形態の作用を、図３のフローチャートを参照して説明する。なお、四方弁１５は四方弁用リレー５がＯＦＦの場合は冷房運転（実線で示す）、四方弁用リレー５がＯＮの場合は暖房運転（破線で示す）となる。
いま、冷房運転状態の空気調和機（四方弁用リレー５がＯＦＦ）において、電源６を投入して圧縮機用リレー３をＯＮし（ステップＳ−１）、圧縮機１３に通電する。そして、温度センサ２で検出した室内機１の温度が低下したときは（ステップＳ−２）、端子Ａ2、配線２１ｂ、端子Ｂ2を介して圧縮機１３に通電されて圧縮機１３が駆動され、室内機１が熱交換を行なっていることがわかるので、配線が正常に接続されていると判断し、正常処理を行う（ステップＳ−３）。また、室内機１の温度が低下しないときは（ステップＳ−２）、誤配線により圧縮機１３に通電されていないと判断し、警告表示などの異常処理を行う（ステップＳ−４）。 Next, the operation of the present embodiment configured as described above will be described with reference to the flowchart of FIG. The four-way valve 15 is in a cooling operation (indicated by a solid line) when the four-way valve relay 5 is OFF, and is in a heating operation (indicated by a broken line) when the four-way valve relay 5 is ON.
Now, in the air conditioner in the cooling operation state (four-way valve relay 5 is OFF), the power supply 6 is turned on to turn on the compressor relay 3 (step S-1), and the compressor 13 is energized. When the temperature of the indoor unit 1 detected by the temperature sensor 2 decreases (step S-2), the compressor 13 is energized through the terminal A 2 , the wiring 21b, and the terminal B 2 to drive the compressor 13. Since it is understood that the indoor unit 1 is performing heat exchange, it is determined that the wiring is normally connected, and normal processing is performed (step S-3). Further, when the temperature of the indoor unit 1 does not decrease (step S-2), it is determined that the compressor 13 is not energized due to incorrect wiring, and abnormality processing such as warning display is performed (step S-4).

本実施の形態においては、電流センサ等の電気部品を付加したり、回路を変更したりすることなく、圧縮機用リレー３と圧縮機１３との配線接続が正常か異常か（配線２１ｂにより端子Ａ2とＢ2が正常に接続されているかどうか）を、室内機１の温度変化によって検知するようにしたので、コストが上昇することなく、圧縮機用リレー３以外のリレーを含む回路を保護することができ、また、圧縮機用リレー３以外のリレーを負荷に見合って小型（安価）にすることができ。 In the present embodiment, whether the wiring connection between the compressor relay 3 and the compressor 13 is normal or abnormal without adding an electric component such as a current sensor or changing the circuit (the terminal by the wiring 21b). Whether or not A 2 and B 2 are normally connected) is detected by the temperature change of the indoor unit 1, so that the circuit including relays other than the compressor relay 3 is protected without increasing the cost. In addition, relays other than the compressor relay 3 can be made compact (inexpensive) in accordance with the load.

［実施の形態２］
実施の形態１では、圧縮機用リレー３と圧縮機１３との配線接続の状態を検知する方法について説明したが、本実施の形態は、ファンモータ１４と四方弁１５の配線の接続状態を検知するようにしたものである。なお、空気調和機の構成及び電気的配線は実施の形態１の場合と同様なので、説明を省略する（以下の実施の形態においても同じである）。
以下に、本実施の形態の冷房運転時における作用を、図４のフローチャートにより説明する。 [Embodiment 2]
In the first embodiment, the method of detecting the wiring connection state between the compressor relay 3 and the compressor 13 has been described. However, the present embodiment detects the connection state of the fan motor 14 and the four-way valve 15. It is what you do. Note that the configuration and electrical wiring of the air conditioner are the same as those in the first embodiment, and a description thereof will be omitted (the same applies to the following embodiments).
Below, the effect | action at the time of the air_conditionaing | cooling operation of this Embodiment is demonstrated with the flowchart of FIG.

冷房運転状態において、先ず、電源６を投入して圧縮機用リレー３をＯＮし（ステップＳ−１１）、圧縮機１３が駆動されて室内機１の温度が低下するかどうかを確認する（ステップＳ−１２）。室内機１の温度が低下した場合は、端子Ａ2、配線２１ｂ、端子Ｂ2を介して圧縮機１３に通電して圧縮機１３が駆動されたので、配線接続が正常であると判断する。 In the cooling operation state, first, the power supply 6 is turned on to turn on the compressor relay 3 (step S-11), and it is confirmed whether the compressor 13 is driven and the temperature of the indoor unit 1 is lowered (step S11). S-12). When the temperature of the indoor unit 1 is lowered, the compressor 13 is driven by energizing the compressor 13 via the terminal A 2 , the wiring 21b, and the terminal B 2 , so that it is determined that the wiring connection is normal.

次に、四方弁用リレー５をＯＮし、四方弁１５を暖房運転に切換える（ステップＳ−１３）。これにより、室内機１の温度が上昇すれば、端子Ａ4、配線２１ｄ、端子Ｂ4を介して四方弁１５に通電され、四方弁１３が駆動されて切換られたので、配線接続が正常であると判断し、正常処理を行う（ステップＳ−１５）。
圧縮機１３又は四方弁１５に通電しても室内機１の温度が変化しない場合は（ステップＳ−１２又はＳ−１４）、誤配線されて圧縮機１３又は四方弁１５に通電されていないと判断し、警告表示などの異常処理を行う（ステップＳ−１６）。 Next, the four-way valve relay 5 is turned ON, and the four-way valve 15 is switched to the heating operation (step S-13). As a result, if the temperature of the indoor unit 1 rises, the four-way valve 15 is energized via the terminal A 4 , the wiring 21 d and the terminal B 4 , and the four-way valve 13 is driven and switched. It is determined that there is, and normal processing is performed (step S-15).
If the temperature of the indoor unit 1 does not change even when the compressor 13 or the four-way valve 15 is energized (step S-12 or S-14), the compressor 13 or the four-way valve 15 is not energized. Judgment is performed, and abnormality processing such as warning display is performed (step S-16).

本実施の形態によれば、圧縮機１３及び四方弁１５の配線接続が正常か異常かを検知することができるので、実施の形態１の場合とほぼ同様の効果を得ることができる。また、例えば、端子Ａ1とＢ2あるいは端子Ａ2とＢ1というような誤配線を検知することができ、さらに、ファンモータ１４と四方弁１５との誤配線も検知することができる。 According to the present embodiment, it is possible to detect whether the wiring connection between the compressor 13 and the four-way valve 15 is normal or abnormal, and therefore, substantially the same effect as in the case of the first embodiment can be obtained. Further, for example, erroneous wiring such as terminals A 1 and B 2 or terminals A 2 and B 1 can be detected, and further, erroneous wiring between the fan motor 14 and the four-way valve 15 can also be detected.

［実施の形態３］
実施の形態１，２では室内機１の温度の変化を検出して誤配線を検知する場合を示したが、本実施の形態においては、室外機１１の温度の変化を検出することにより誤配線を検知するようにしたものである。
以下、図５のフローチャートを用いて本実施の形態の作用を説明する。 [Embodiment 3]
In the first and second embodiments, the case where the change in the temperature of the indoor unit 1 is detected to detect the incorrect wiring is shown. However, in the present embodiment, the incorrect wiring is performed by detecting the change in the temperature of the outdoor unit 11. Is to be detected.
The operation of the present embodiment will be described below using the flowchart of FIG.

先ず、空気調和機が冷房運転状態（四方弁用リレー５がＯＦＦ）において、圧縮機用リレー３をＯＮし（ステップＳ−２１）、圧縮機１３に通電しつつ室外機２１の温度変化を確認する。温度センサ１２で検出した室外機１１の温度が上昇した場合は、端子Ａ2、配線２１ｂ、端子Ｂ2を介して圧縮機１３に通電され、圧縮機１３が駆動されて室外機１１が熱交換していることがわかるので、配線は正常に接続されていると判断し、正常処理を行う（ステップＳ−２３）。
室外機１１の温度が上昇しない場合は誤配線されて圧縮機１３に通電されていないと判断し、警告表示などの異常処理を行う（ステップＳ−２４）。 First, when the air conditioner is in the cooling operation state (four-way valve relay 5 is OFF), the compressor relay 3 is turned ON (step S-21), and the temperature change of the outdoor unit 21 is confirmed while the compressor 13 is energized. To do. When the temperature of the outdoor unit 11 detected by the temperature sensor 12 rises, the compressor 13 is energized through the terminal A 2 , the wiring 21 b and the terminal B 2 , and the compressor 13 is driven to exchange heat with the outdoor unit 11. Therefore, it is determined that the wiring is normally connected, and normal processing is performed (step S-23).
When the temperature of the outdoor unit 11 does not increase, it is determined that the compressor 13 is not connected with power due to incorrect wiring, and an abnormal process such as a warning display is performed (step S-24).

本実施の形態によれば、実施の形態１とほぼ同様の効果が得られるが、さらに、圧縮機用リレー３と圧縮機１３との誤配線の有無を、圧縮機１３に近い室外機１１の温度の変化によって検知するようにしたので、温度の変化を早く検出することができ、これにより判定時間を短かくすることができる。   According to the present embodiment, substantially the same effect as in the first embodiment can be obtained, but the presence or absence of incorrect wiring between the compressor relay 3 and the compressor 13 can be determined by checking the outdoor unit 11 close to the compressor 13. Since the detection is performed based on the change in temperature, the change in temperature can be detected quickly, and the determination time can be shortened.

［実施の形態４］
実施の形態１，２では室内機１の温度変化、実施の形態３では室外機１１の温度変化を検出して誤配線の有無を検知する場合を示したが、本実施の形態においては、室内機１と室外機１１の両者の温度変化を検出して誤配線の有無を検知するようにしたものである。
以下、図６のフローチャートを用いて本実施の形態の作用を説明する。 [Embodiment 4]
In the first and second embodiments, the temperature change of the indoor unit 1 is shown, and in the third embodiment, the temperature change of the outdoor unit 11 is detected to detect the presence of incorrect wiring. The temperature change of both the unit 1 and the outdoor unit 11 is detected to detect the presence of miswiring.
Hereinafter, the operation of the present embodiment will be described with reference to the flowchart of FIG.

四方弁１５が冷房運転状態の空気調和機において、先ず、圧縮機用リレー３をＯＮし（ステップＳ−３１）、圧縮機１３に通電しつつ室外機１１の温度が上昇するかどうかを確認する（ステップＳ−３２）、室外機１１の温度が上昇した場合は、端子Ａ2、配線２１ｂ、端子Ｂ2を介して圧縮機１３に通電され、圧縮機１３が駆動されているので配線の接続は正常であると判断する。その後、四方弁用リレー５をＯＮし（ステップＳ−３３）、四方弁１５を暖房運転に切換えて室内機１の温度が変化するかどうかを確認する。室内機１の温度が上昇すれば、端子Ａ4、配線２１ｄ、端子Ｂ4を介して四方弁１５に通電され、四方弁１５が駆動されたことがわかるので、配線接続が正常であると判断し、正常処理を行う（ステップＳ−３５）。圧縮機用リレー３又は四方弁用リレー５をＯＮしても、室外機１１又は室内機１の温度が変化しない場合は、誤配線されていると判断し、警告表示などの異常処理を行う（ステップＳ−３６）。 In the air conditioner in which the four-way valve 15 is in the cooling operation state, first, the compressor relay 3 is turned on (step S-31), and it is confirmed whether the temperature of the outdoor unit 11 rises while energizing the compressor 13. (Step S-32) When the temperature of the outdoor unit 11 rises, the compressor 13 is energized through the terminal A 2 , the wiring 21b, and the terminal B 2 and the compressor 13 is driven. Is determined to be normal. Thereafter, the four-way valve relay 5 is turned on (step S-33), and the four-way valve 15 is switched to the heating operation to check whether the temperature of the indoor unit 1 changes. If the temperature of the indoor unit 1 rises, it can be seen that the four-way valve 15 is energized via the terminal A 4 , the wiring 21 d and the terminal B 4 , and the four-way valve 15 is driven, so it is determined that the wiring connection is normal. Then, normal processing is performed (step S-35). If the temperature of the outdoor unit 11 or the indoor unit 1 does not change even if the compressor relay 3 or the four-way valve relay 5 is turned on, it is determined that the wiring is incorrect and abnormal processing such as warning display is performed ( Step S-36).

本実施の形態においては、冷房運転時には圧縮機１３に近い室外機１１の温度変化により、圧縮用リレー３と圧縮機１３との配線状態を判断し、暖房運転時には圧縮機１３に近い室内機１の温度変化により、四方弁用リレー５と四方弁１５との配線状態を判断するようにしたので、より早く温度の変化を検出することができ、判定時間を早めることができる。   In the present embodiment, the wiring state between the compression relay 3 and the compressor 13 is determined based on the temperature change of the outdoor unit 11 close to the compressor 13 during the cooling operation, and the indoor unit 1 close to the compressor 13 during the heating operation. Since the wiring state between the four-way valve relay 5 and the four-way valve 15 is determined by this temperature change, the temperature change can be detected earlier and the determination time can be advanced.

本発明の実施の形態１に係る空気調和機の概略配線図である。1 is a schematic wiring diagram of an air conditioner according to Embodiment 1 of the present invention. 図１の空気調和機の概略構成を示すブロック図である。It is a block diagram which shows schematic structure of the air conditioner of FIG. 実施の形態１の作用を説明するためのフローチャートである。3 is a flowchart for explaining the operation of the first embodiment. 本発明の実施の形態２の作用を説明するためのフローチャートである。It is a flowchart for demonstrating the effect | action of Embodiment 2 of this invention. 本発明の実施の形態３の作用を説明するためのフローチャートである。It is a flowchart for demonstrating the effect | action of Embodiment 3 of this invention. 本発明の実施の形態４の作用を説明するためのフローチャートである。It is a flowchart for demonstrating the effect | action of Embodiment 4 of this invention.

符号の説明Explanation of symbols

１ 室内機、２，１２ 温度センサ、３ 圧縮機用リレー、４ ファンモータ用リレー、５ 四方弁用リレー、７ 室内機側端子台、１１ 室外機、１３ 圧縮機、１４ ファンモータ、１５ 四方弁、１６ 室外機側端子台。
DESCRIPTION OF SYMBOLS 1 Indoor unit, 2,12 Temperature sensor, 3 Relay for compressors, 4 Fan motor relay, 5 Four-way valve relay, 7 Indoor unit side terminal block, 11 Outdoor unit, 13 Compressor, 14 Fan motor, 15 Four-way valve , 16 Outdoor unit side terminal block.

Claims (2)

電源に接続された圧縮機用リレー、ファンモータ用リレー及び四方弁用リレーを有する室内機と、前記圧縮機用リレー、ファンモータ用リレー及び四方弁用リレーにそれぞれ接続されて駆動される圧縮機、ファンモータ及び四方弁を有する室外機とを備え、
前記圧縮機用リレーと圧縮機との接続状態を前記室内機又は室外機の温度変化によって検知することを特徴とする空気調和機の誤配線検知方法。 An indoor unit having a compressor relay, fan motor relay, and four-way valve relay connected to a power source, and a compressor connected to and driven by the compressor relay, fan motor relay, and four-way valve relay An outdoor unit having a fan motor and a four-way valve,
An erroneous wiring detection method for an air conditioner, wherein a connection state between the compressor relay and the compressor is detected by a temperature change of the indoor unit or the outdoor unit. 電源に接続された圧縮機用リレー、ファンモータ用リレー及び四方弁用リレーを有する室内機と、前記圧縮機用リレー、ファンモータ用リレー及び四方弁用リレーにそれぞれ接続されて駆動される圧縮機、ファンモータ及び四方弁を有する室外機とを備え、
前記圧縮機用リレーと圧縮機及び前記四方弁用リレーと四方弁との接続状態を前記室内機又は室外機の温度変化によって検知することを特徴とする空気調和機の誤配線検知方法。
An indoor unit having a compressor relay, fan motor relay, and four-way valve relay connected to a power source, and a compressor connected to and driven by the compressor relay, fan motor relay, and four-way valve relay An outdoor unit having a fan motor and a four-way valve,
An erroneous wiring detection method for an air conditioner, characterized in that a connection state of the compressor relay and the compressor and the four-way valve relay and the four-way valve is detected by a temperature change of the indoor unit or the outdoor unit.
JP2004062406A 2004-03-05 2004-03-05 Wiring error detecting method for air-conditioner Withdrawn JP2005249338A (en)

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CN106054064A (en) * 2016-08-19 2016-10-26 芜湖美智空调设备有限公司 Fault detection method and fault detection device of air conditioner, and air conditioner
JP2017122543A (en) * 2016-01-07 2017-07-13 株式会社コロナ Cooling/heating indoor terminal, cooling/heating system and incorrect wiring detection method
CN114877495A (en) * 2022-03-24 2022-08-09 宁波奥克斯电气股份有限公司 Compressor phase sequence control method and device and air conditioner
CN115127193A (en) * 2022-07-06 2022-09-30 宁波奥克斯电气股份有限公司 Detection method and system for loose wiring of zero line and live line and air conditioner outdoor unit
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017122543A (en) * 2016-01-07 2017-07-13 株式会社コロナ Cooling/heating indoor terminal, cooling/heating system and incorrect wiring detection method
CN106054064A (en) * 2016-08-19 2016-10-26 芜湖美智空调设备有限公司 Fault detection method and fault detection device of air conditioner, and air conditioner
CN114877495A (en) * 2022-03-24 2022-08-09 宁波奥克斯电气股份有限公司 Compressor phase sequence control method and device and air conditioner
CN114877495B (en) * 2022-03-24 2023-10-20 宁波奥克斯电气股份有限公司 Compressor phase sequence control method and device and air conditioner
CN115183347A (en) * 2022-06-21 2022-10-14 青岛海尔空调电子有限公司 Control method of air conditioning system and air conditioning system
CN115183347B (en) * 2022-06-21 2024-06-07 青岛海尔空调电子有限公司 Control method of air conditioning system and air conditioning system
CN115127193A (en) * 2022-07-06 2022-09-30 宁波奥克斯电气股份有限公司 Detection method and system for loose wiring of zero line and live line and air conditioner outdoor unit
CN115127193B (en) * 2022-07-06 2023-09-01 宁波奥克斯电气股份有限公司 Zero and live wire wiring looseness detection method and system and air conditioner outdoor unit

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