JP3884646B2 - Air conditioner communication control device - Google Patents

Air conditioner communication control device Download PDF

Info

Publication number
JP3884646B2
JP3884646B2 JP2001374582A JP2001374582A JP3884646B2 JP 3884646 B2 JP3884646 B2 JP 3884646B2 JP 2001374582 A JP2001374582 A JP 2001374582A JP 2001374582 A JP2001374582 A JP 2001374582A JP 3884646 B2 JP3884646 B2 JP 3884646B2
Authority
JP
Japan
Prior art keywords
indoor
circuit
outdoor
communication
power supply
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.)
Expired - Fee Related
Application number
JP2001374582A
Other languages
Japanese (ja)
Other versions
JP2003176946A (en
Inventor
裕 木村
Original Assignee
株式会社長府製作所
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 株式会社長府製作所 filed Critical 株式会社長府製作所
Priority to JP2001374582A priority Critical patent/JP3884646B2/en
Publication of JP2003176946A publication Critical patent/JP2003176946A/en
Application granted granted Critical
Publication of JP3884646B2 publication Critical patent/JP3884646B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00Details or features not otherwise provided for
    • F24F2221/32Details or features not otherwise provided for preventing human errors during the installation, use or maintenance, e.g. goofy proof

Landscapes

  • Air Conditioning Control Device (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、室内機と室外機を備えたセパレートタイプのエアコンにおいて、室内機と室外機との間の通信制御装置に関し、特に、通信異常時の制御技術に関する。
【0002】
【従来の技術】
従来のエアコンとして、例えば、図1に示すように、室内送信回路と室内受信回路を接続した室内通信回路と、この室内通信回路を制御する室内制御部が設けられている室内機と;室外送信回路と室外受信回路を接続した室外通信回路と、この室外通信回路を制御する室外制御部とが設けられている室外機を備え、前記室内送信回路と室外受信回路とが制限抵抗を介して電線で接続され、前記室内受信回路が制限抵抗を介して室内電源回路に接続されると共に、室外送信回路が制限抵抗を介して室外電源回路に接続され、この室内電源回路と室外送信回路が電線により接続され、前記室内電源回路に前記室内制御部によりON/OFF制御されるパワーリレーが設けられているものが知られている。
【0003】
この場合、前記室内通信回路と室外通信回路との通信不成立状態での強制運転時{電源投入後一定時間内(例えば2分以内)又は試運転時}においては、パワーリレーがONすると共に、室内送信回路がONするように制御されている。
このように、パワーリレーをONしておくのは、ポンプダウンによる冷媒回収を可能にさせるためであり、又、室内送信回路をONしておくのは、途中で通信が復帰したときに対応できるようにするためである。
【0004】
【発明が解決しようとする課題】
しかしながら、このような通信不成立状態で、図1破線で示すように、通信回路と電源回路との間が電線で接続された誤配線状態が生じると、パワーリレー及び室内送信回路がONであるため、電源回路の電流が全ての制限抵抗を通らず一部の制限抵抗だけを通るという回路が生じてしまう。
これでは、電流が通る制限抵抗の負荷が増大し、その結果、制限抵抗が異常発熱し、破壊に至るという問題が生じる。
尚、制限抵抗を予め容量の大きなものにしておけば、異常発熱を防止できるが、その分だけコスト負担が大きくなるという問題がある。
【0005】
本発明は、上記のような従来の問題を解決するためになされたもので、通信不成立状態で、電線の誤配線状態が生じた場合に、制限抵抗の異常発熱を防止することができるエアコンの通信制御装置を提供することを課題としている。
【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、本発明のエアコンの通信制御装置は、
室内送信回路と室内受信回路を接続した室内通信回路と、この室内通信回路を制御する室内制御部が設けられている室内機と、
室外送信回路と室外受信回路を接続した室外通信回路と、この室外通信回路を制御する室外制御部とが設けられている室外機を備え、
前記室内送信回路と室外受信回路とが制限抵抗を介して電線で接続され、
前記室内受信回路が制限抵抗を介して室内電源回路に接続されると共に、室外送信回路が制限抵抗を介して室外電源回路に接続され、この室内電源回路と室外送信回路が電線により接続され、
前記室内電源回路に前記室内制御部によりON/OFF制御されるパワーリレーが設けられ、
前記室内通信回路と室外通信回路との通信不成立状態での強制運転時{電源投入後一定時間内(例えば2分以内)又は試運転時}においてはパワーリレーがONすると共に、室内送信回路がONするように制御されているエアコンにおいて、
前記通信回路と電源回路との間が電線で接続された誤配線状態が生じると、一定時間経過後に前記室内送信回路を数秒間隔で断続させるように制御させる構成とした。
【0007】
本発明では、誤配線状態が生じると、室内送信回路を数秒間隔で断続させるため、常時接続に比べて制限抵抗の負荷が増大するのを抑えることができるし、又、室内送信回路が断続的にではあるがONするため、途中で通信が復帰したときにも対応することができる。
【0008】
【発明の実施の形態】
以下、本発明の実施の形態を図面により説明する。尚、本発明の具体的な構成は、以下の実施の形態に限定されるものではない。
図1は本発明の実施の1形態であって、エアコンの通信回路図、図2は通信制御装置のフローチャートである。
【0009】
図1で示した通信回路の構成は、前述の「従来の技術」の欄及び「発明が解決しようとする課題」の欄で説明した通りである。
図において、1は室内機で、室内送信回路20と室内受信回路21を接続した室内通信回路2と、この室内通信回路2を制御する室内マイコン3(室内制御部)が設けられている。
4は室外機で、室外送信回路50と室外受信回路51を接続した室外通信回路5と、この室外通信回路5を制御する室外マイコン6(室外制御部)とが設けられている。
前記室内機1と室外機4とは、3本の電線70,80,81により接続され、この場合、室内送信回路20と室外受信回路51とが制限抵抗R1を介して電線70で接続され、室内電源回路82と室外電源回路83が2本の電線80,81により接続されている。
【0010】
又、前記室内受信回路21は制限抵抗R2を介して室内電源回路82に接続され、室外送信回路50は制限抵抗R3を介して室外電源回路83に接続され、前記室内電源回路82に室内制御部3によりON/OFF制御されるパワーリレー84が設けられている。
尚、90はダイオード、91はコンデンサであり整流と平滑を行う。
【0011】
そして、前記室内マイコン3は、前記室内通信回路2と室外通信回路5との通信不成立状態での強制運転時、例えば、電源投入後2分以内又は試運転時において、パワーリレー84をONさせると共に、室内送信回路20をONさせるように制御する。
【0012】
このような通信不成立状態で、仮に図1の破線で示すように、通信回路2,5と電源回路82,83との間が電線70及び電線81で接続された誤配線状態が生じた場合には、前記室内マイコン3は、一定時間(例えば20秒間)経過後に前記室内送信回路20を数秒間隔で断続(例えば、ON1秒/OFF2秒)させるように制御する。尚、図1においては被制御対象である送風機、圧縮機等は省略してある。
【0013】
この制御の流れを図2のフローチャートにより説明する。
エアコンの電源投入(ステップS1)により、パワーリレー84及び室内送信回路20はONになる(ステップS2),(ステップS3)。この場合、室内送信回路20は1秒間通信出力をONして室外通信回路5からの応答待ちになり、この状態で通信異常が判断される(ステップS4)。
【0014】
この場合の判断は、室内送信回路20からの送信に対し室外通信回路5からの応答が正常か否かで判断され、通信異常(NO)の場合には、通信エラーカウンタが1秒ごとにカウントを重ねていく(ステップS5)。
上記ステップS5で通信エラーカウンタが1秒ごとにカウントを重ねていくと、そのカウント数が判断され(ステップS10)、そのカウント数が20回(20秒)をカウントするまでの間(NO)はステップS3→S4→S5→S10を繰り返す。
この20秒間はパワーリレー84及び室内送信回路20はONを維持する。
【0015】
S4で通信正常(YES)の場合には、通信エラーカウンタがゼロ復帰し(ステップS6)、次に運転停止指令等の通信終了条件が判断され(ステップS7)、通信終了条件が入力されれば(YES)、パワーリレー84がOFF(ステップS8)して正常終了し(ステップS9)、通信終了条件が入力されるまでは(NO)ステップS3→S4→S6→S7を繰り返す。
【0016】
ステップS10で通信エラーカウンタによるカウント数が20回を超えると(YES)、次に強制通信モードか否かが判断される(ステップS11)。この強制通信モードは、エアコンの運転が強制運転、即ち、電源投入後2分以内又は試運転か否かを判断するもので、強制運転でない場合(NO)には、パワーリレー84をOFFすると共に通信異常表示を行い(ステップS12)、強制終了する(ステップS13)。
【0017】
前記ステップS11で強制運転時であると判断されると(YES)、室内送信回路20からの送信を2秒間停止させた(ステップS14)のちステップS3に戻り、室内送信回路20をON1秒/OFF2秒という数秒間隔で断続させる。尚、この室内送信回路20の断続は、ステップS11において強制運転時でないと判断(NO)されるまで繰り返される。
【0018】
以上のように、電線70及び電線81の誤配線状態が生じたとしても、室内送信回路20を数秒間隔で断続させるように制御するため、常時接続に比べて制限抵抗の負荷が増大するのを抑えることができるし、又、この断続状態において室内送信回路20が断続的にではあるがONするため、途中で通信が復帰したときにも対応することができる。
【0019】
尚、本発明において、強制運転時間、室内送信回路を断続させるまでの時間(通信エラーカウンタのカウント数)、及び室内送信回路のON/OFF秒数は実施の形態に限定されない。
【0020】
【発明の効果】
以上説明してきたように、本発明のエアコンの通信制御装置にあっては、通信不成立状態で、通信ケーブル及び電線の誤配線状態が生じた場合に、室内送信回路を数秒間隔で断続させるように制御させるため、制限抵抗の異常発熱を防止することができるし、コスト負担が大きい容量の大きな制限抵抗を用いる必要もない。
【図面の簡単な説明】
【図1】本発明及び従来例の実施の1形態であって、エアコンの通信回路図である。
【図2】本発明の通信制御装置のフローチャートである。
【符号の説明】
1 室内機
2 室内通信回路
20 室内送信回路
21 室内受信回路
3 室内マイコン(室内制御部)
4 室外機
5 室外通信回路
50 室外送信回路
51 室外受信回路
6 室外マイコン(室外制御部)
70 電線
80 電線
81 電線
82 室内電源回路
83 室外電源回路
84 パワーリレー
90 ダイオード
91 コンデンサ
R1 制限抵抗
R2 制限抵抗
R3 制限抵抗
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a communication control apparatus between an indoor unit and an outdoor unit in a separate type air conditioner including an indoor unit and an outdoor unit, and more particularly to a control technique when communication is abnormal.
[0002]
[Prior art]
As a conventional air conditioner, for example, as shown in FIG. 1, an indoor communication circuit in which an indoor transmission circuit and an indoor reception circuit are connected, an indoor unit provided with an indoor control unit that controls the indoor communication circuit; An outdoor communication circuit including an outdoor communication circuit in which a circuit and an outdoor reception circuit are connected and an outdoor control unit that controls the outdoor communication circuit is provided, and the indoor transmission circuit and the outdoor reception circuit are electrically connected via a limiting resistor. The indoor reception circuit is connected to the indoor power supply circuit via a limiting resistor, and the outdoor transmission circuit is connected to the outdoor power supply circuit via a limiting resistor. The indoor power supply circuit and the outdoor transmission circuit are connected by an electric wire. It is known that a power relay that is connected and is controlled to be turned on and off by the room control unit is provided in the room power supply circuit.
[0003]
In this case, at the time of forced operation in a state where communication between the indoor communication circuit and the outdoor communication circuit is not established {within a fixed time (for example, within 2 minutes) or during trial operation after power-on), the power relay is turned on and indoor transmission is performed. The circuit is controlled to turn on.
As described above, the power relay is turned on in order to enable refrigerant recovery by pumping down, and the indoor transmission circuit is turned on when the communication is restored in the middle. It is for doing so.
[0004]
[Problems to be solved by the invention]
However, in such a communication failure state, as shown by the broken line in FIG. 1, if a miswiring state occurs in which the communication circuit and the power supply circuit are connected by electric wires, the power relay and the indoor transmission circuit are ON. As a result, a circuit in which the current of the power supply circuit passes only through some of the limiting resistors without passing through all of the limiting resistors is generated.
This increases the load of the limiting resistor through which the current passes, resulting in a problem that the limiting resistor abnormally heats up and breaks down.
If the limiting resistor has a large capacity in advance, abnormal heat generation can be prevented, but there is a problem that the cost burden increases accordingly.
[0005]
The present invention has been made to solve the above-described conventional problems, and is an air conditioner that can prevent abnormal heat generation of a limiting resistor when an incorrect wiring state of a wire occurs in a communication failure state. It is an object to provide a communication control device.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, a communication control device for an air conditioner according to the present invention provides:
An indoor communication circuit in which an indoor transmission circuit and an indoor reception circuit are connected, and an indoor unit provided with an indoor control unit that controls the indoor communication circuit;
An outdoor unit provided with an outdoor communication circuit that connects an outdoor transmission circuit and an outdoor reception circuit, and an outdoor control unit that controls the outdoor communication circuit;
The indoor transmitting circuit and the outdoor receiving circuit are connected by a wire through a limiting resistor,
The indoor reception circuit is connected to the indoor power supply circuit via the limiting resistor, and the outdoor transmission circuit is connected to the outdoor power supply circuit via the limiting resistor, and the indoor power supply circuit and the outdoor transmission circuit are connected by an electric wire,
A power relay that is ON / OFF controlled by the indoor control unit is provided in the indoor power supply circuit,
At the time of forced operation in a state where communication between the indoor communication circuit and the outdoor communication circuit is not established {within a fixed time (for example, within 2 minutes) or during trial operation after power-on), the power relay is turned on and the indoor transmission circuit is turned on. In the air conditioner controlled so that
When an erroneous wiring state in which the communication circuit and the power supply circuit are connected by an electric wire occurs, the indoor transmission circuit is controlled to be intermittent at intervals of several seconds after a predetermined time has elapsed.
[0007]
In the present invention, when an erroneous wiring state occurs, the indoor transmission circuit is intermittently interrupted at intervals of several seconds. Therefore, it is possible to suppress an increase in the load of the limiting resistor as compared to the constant connection, and the indoor transmission circuit is intermittent. However, since it is turned ON, it is possible to cope with the case where communication is restored in the middle.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the specific structure of this invention is not limited to the following embodiment.
FIG. 1 is an embodiment of the present invention, and is a communication circuit diagram of an air conditioner. FIG. 2 is a flowchart of a communication control device.
[0009]
The configuration of the communication circuit shown in FIG. 1 is as described in the above-mentioned section “Prior Art” and “Problems to be Solved by the Invention”.
In the figure, reference numeral 1 denotes an indoor unit, which is provided with an indoor communication circuit 2 in which an indoor transmission circuit 20 and an indoor reception circuit 21 are connected, and an indoor microcomputer 3 (indoor control unit) that controls the indoor communication circuit 2.
An outdoor unit 4 includes an outdoor communication circuit 5 in which an outdoor transmission circuit 50 and an outdoor reception circuit 51 are connected, and an outdoor microcomputer 6 (outdoor control unit) that controls the outdoor communication circuit 5.
The indoor unit 1 and the outdoor unit 4 are connected by three electric wires 70, 80, 81. In this case, the indoor transmission circuit 20 and the outdoor reception circuit 51 are connected by the electric wire 70 via the limiting resistor R1, The indoor power supply circuit 82 and the outdoor power supply circuit 83 are connected by two electric wires 80 and 81.
[0010]
The indoor reception circuit 21 is connected to the indoor power supply circuit 82 via the limiting resistor R2, and the outdoor transmission circuit 50 is connected to the outdoor power supply circuit 83 via the limiting resistor R3, and the indoor power supply circuit 82 is connected to the indoor control unit. 3, a power relay 84 that is ON / OFF controlled by the power supply 3 is provided.
In addition, 90 is a diode, 91 is a capacitor, and performs rectification and smoothing.
[0011]
The indoor microcomputer 3 turns on the power relay 84 during forced operation in a state where communication between the indoor communication circuit 2 and the outdoor communication circuit 5 is not established, for example, within 2 minutes after power-on or during trial operation, The indoor transmission circuit 20 is controlled to be turned on.
[0012]
In such a communication failure state, as shown by a broken line in FIG. 1, when a miswiring state in which the communication circuits 2 and 5 and the power supply circuits 82 and 83 are connected by the electric wires 70 and 81 occurs. The indoor microcomputer 3 controls the indoor transmission circuit 20 to be intermittent (for example, ON 1 second / OFF 2 seconds) at intervals of several seconds after a predetermined time (for example, 20 seconds) has elapsed. In FIG. 1, a blower, a compressor, and the like that are controlled objects are omitted.
[0013]
The flow of this control will be described with reference to the flowchart of FIG.
When the air conditioner is turned on (step S1), the power relay 84 and the indoor transmission circuit 20 are turned on (step S2) and (step S3). In this case, the indoor transmission circuit 20 turns on the communication output for 1 second and waits for a response from the outdoor communication circuit 5, and communication abnormality is determined in this state (step S4).
[0014]
The determination in this case is made based on whether or not the response from the outdoor communication circuit 5 is normal with respect to the transmission from the indoor transmission circuit 20, and in the case of communication abnormality (NO), the communication error counter is counted every second. (Step S5).
When the communication error counter repeats counting every second in step S5, the count number is determined (step S10), and until the count number counts 20 times (20 seconds) (NO) Steps S3 → S4 → S5 → S10 are repeated.
During this 20 seconds, the power relay 84 and the indoor transmission circuit 20 are kept ON.
[0015]
If the communication is normal (YES) in S4, the communication error counter returns to zero (step S6), and then a communication end condition such as an operation stop command is determined (step S7), and the communication end condition is input. (YES), the power relay 84 is turned off (step S8) and is normally terminated (step S9), and steps S3 → S4 → S6 → S7 are repeated until the communication termination condition is input (NO).
[0016]
If the count by the communication error counter exceeds 20 in step S10 (YES), it is next determined whether or not the forced communication mode is set (step S11). This forced communication mode determines whether the operation of the air conditioner is forced operation, i.e., within 2 minutes after power-on or whether it is a trial operation. If it is not forced operation (NO), the power relay 84 is turned off and communication is performed. Abnormality is displayed (step S12), and the process is forcibly terminated (step S13).
[0017]
If it is determined in step S11 that the forced operation is being performed (YES), transmission from the indoor transmission circuit 20 is stopped for 2 seconds (step S14), and then the process returns to step S3 to turn on the indoor transmission circuit 20 for 1 second / OFF2. Intermittently at intervals of a few seconds. The intermittent transmission of the indoor transmission circuit 20 is repeated until it is determined (NO) in step S11 that it is not during forced operation.
[0018]
As described above, even if an erroneous wiring state of the electric wire 70 and the electric wire 81 occurs, the indoor transmission circuit 20 is controlled to be intermittent at intervals of several seconds. In addition, since the indoor transmission circuit 20 is intermittently turned on in this intermittent state, it is possible to cope with a case where communication is restored in the middle.
[0019]
In the present invention, the forced operation time, the time until the indoor transmission circuit is interrupted (the count number of the communication error counter), and the ON / OFF seconds of the indoor transmission circuit are not limited to the embodiment.
[0020]
【The invention's effect】
As described above, in the communication control device for an air conditioner according to the present invention, when an erroneous wiring state of a communication cable and a wire occurs in a communication failure state, the indoor transmission circuit is intermittently provided at intervals of several seconds. Because of the control, abnormal heating of the limiting resistor can be prevented, and it is not necessary to use a large limiting resistor having a large cost burden.
[Brief description of the drawings]
FIG. 1 is a communication circuit diagram of an air conditioner according to an embodiment of the present invention and a conventional example.
FIG. 2 is a flowchart of a communication control apparatus according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Indoor communication circuit 20 Indoor transmission circuit 21 Indoor reception circuit 3 Indoor microcomputer (indoor control part)
4 outdoor unit 5 outdoor communication circuit 50 outdoor transmission circuit 51 outdoor reception circuit 6 outdoor microcomputer (outdoor control unit)
70 Electric wire 80 Electric wire 81 Electric wire 82 Indoor power supply circuit 83 Outdoor power supply circuit 84 Power relay 90 Diode 91 Capacitor R1 Limiting resistor R2 Limiting resistor R3 Limiting resistor

Claims (1)

室内送信回路と室内受信回路を接続した室内通信回路と、この室内通信回路を制御する室内制御部が設けられている室内機と、
室外送信回路と室外受信回路を接続した室外通信回路と、この室外通信回路を制御する室外制御部とが設けられている室外機を備え、
前記室内送信回路と室外受信回路とが制限抵抗を介して電線で接続され、
前記室内受信回路が制限抵抗を介して室内電源回路に接続されると共に、室外送信回路が制限抵抗を介して室外電源回路に接続され、この室内電源回路と室外送信回路が電線により接続され、
前記室内電源回路に前記室内制御部によりON/OFF制御されるパワーリレーが設けられ、
前記室内通信回路と室外通信回路との通信不成立状態での強制運転時においてはパワーリレーがONすると共に、室内送信回路がONするように制御されているエアコンにおいて、
前記通信回路と電源回路との間が電線で接続された誤配線状態が生じると、一定時間経過後に前記室内送信回路を数秒間隔で断続させるように制御させることを特徴としたエアコンの通信制御装置。
An indoor communication circuit in which an indoor transmission circuit and an indoor reception circuit are connected, and an indoor unit provided with an indoor control unit for controlling the indoor communication circuit;
An outdoor unit provided with an outdoor communication circuit that connects an outdoor transmission circuit and an outdoor reception circuit, and an outdoor control unit that controls the outdoor communication circuit,
The indoor transmitting circuit and the outdoor receiving circuit are connected by a wire through a limiting resistor,
The indoor reception circuit is connected to the indoor power supply circuit via a limiting resistor, and the outdoor transmission circuit is connected to the outdoor power supply circuit via a limiting resistor, the indoor power supply circuit and the outdoor transmission circuit are connected by an electric wire,
A power relay that is ON / OFF controlled by the indoor control unit is provided in the indoor power supply circuit,
In the air conditioner that is controlled so that the power relay is turned on and the indoor transmission circuit is turned on at the time of forced operation in the state where communication between the indoor communication circuit and the outdoor communication circuit is not established,
A communication control device for an air conditioner, which controls the indoor transmission circuit to be intermittent at intervals of a few seconds after a predetermined time has elapsed when an erroneous wiring state in which a wire is connected between the communication circuit and the power supply circuit occurs .
JP2001374582A 2001-12-07 2001-12-07 Air conditioner communication control device Expired - Fee Related JP3884646B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001374582A JP3884646B2 (en) 2001-12-07 2001-12-07 Air conditioner communication control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001374582A JP3884646B2 (en) 2001-12-07 2001-12-07 Air conditioner communication control device

Publications (2)

Publication Number Publication Date
JP2003176946A JP2003176946A (en) 2003-06-27
JP3884646B2 true JP3884646B2 (en) 2007-02-21

Family

ID=19183127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001374582A Expired - Fee Related JP3884646B2 (en) 2001-12-07 2001-12-07 Air conditioner communication control device

Country Status (1)

Country Link
JP (1) JP3884646B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115247870B (en) * 2022-05-31 2023-09-08 浙江中广电器集团股份有限公司 Air conditioner and energy-saving operation control method thereof

Also Published As

Publication number Publication date
JP2003176946A (en) 2003-06-27

Similar Documents

Publication Publication Date Title
US8011197B2 (en) Apparatus to sense and control compressor operation in an HVAC system
US8550368B2 (en) Interactive control system for an HVAC system
US20090049847A1 (en) Unitary control for air conditioner and/or heat pump
US20080054082A1 (en) Climate control system including responsive controllers
US20060185373A1 (en) Interactive control system for an HVAC system
JP2012117704A (en) Air conditioner
US7377120B2 (en) HVAC twinning control
JP3884646B2 (en) Air conditioner communication control device
WO2006036478A2 (en) Self diagnosing hvac zone configuration
JP3152560B2 (en) Air conditioner
JP5246324B2 (en) Air conditioner
WO2019064617A1 (en) Home electric appliance
JP3320597B2 (en) Air conditioner
WO2002007127A2 (en) Hvac control and method for interpreting broad range of input voltages
JP3157381B2 (en) Air conditioner
JPH02178556A (en) Operation control device for air conditioner
JP3855159B2 (en) Incorrect wiring protection device and equipment equipped with erroneous wiring protection device
JPH06313609A (en) Air conditioner
JP4288831B2 (en) Control circuit of separate air conditioner
JP3344157B2 (en) Air conditioner remote control device
KR102129927B1 (en) Air-conditioner
WO2017047123A1 (en) Air-conditioning apparatus and method for controlling air-conditioning apparatus
JP4229541B2 (en) Air conditioner control device
JP3134765B2 (en) Apparatus and method for detecting abnormality in mounting of capacity setting component in air conditioner
JPH05215391A (en) Operation controller for air conditioning apparatus

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20040817

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20061017

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20061117

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 3884646

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091124

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101124

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101124

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101124

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111124

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121124

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131124

Year of fee payment: 7

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees