JPH06337185A - Preventing and controlling device for frosting in air-conditioning machine - Google Patents
Preventing and controlling device for frosting in air-conditioning machineInfo
- Publication number
- JPH06337185A JPH06337185A JP12693793A JP12693793A JPH06337185A JP H06337185 A JPH06337185 A JP H06337185A JP 12693793 A JP12693793 A JP 12693793A JP 12693793 A JP12693793 A JP 12693793A JP H06337185 A JPH06337185 A JP H06337185A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- electric heater
- outdoor heat
- frosting
- outdoor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、暖房運転時における空
気調和機の着霜防止制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frost prevention control device for an air conditioner during heating operation.
【０００２】[0002]
【従来の技術】近年、暖房運転可能な空気調和機の普及
に伴い、暖房運転時に室外側熱交換器に着霜するのを防
止することができる空気調和機の着霜防止制御装置の要
求が高まってきている。2. Description of the Related Art In recent years, with the spread of air conditioners capable of heating operation, there has been a demand for a frost prevention control device for an air conditioner capable of preventing frost formation on the outdoor heat exchanger during heating operation. It is rising.
【０００３】従来のこの種の空気調和機の除霜制御装置
の構成について、図２を参照しながら説明する。The structure of a conventional defrost control device for an air conditioner of this type will be described with reference to FIG.
【０００４】図に示すように、室外機本体１０１に圧縮
機１０２、四方弁１０３、室外側熱交換器１０４、キャ
ピラリーチューブ１０５、第一の三方弁１０６を順次接
続し、室内機本体１０７の室内側熱交換器１０８に接続
され、室内側熱交換器１０８は、室外機本体１０１側に
設けられた第二の三方弁１０９と、四方弁１０３を介し
て、圧縮機１０２に接続されて空気調和機の冷媒回路が
構成されていた。そして、室外機本体１０１内に、室外
熱交換器用ファンモータ１１０と、室外側熱交換器１０
４の圧縮機１０２側となるガス側配管には、冷媒の温度
を検出するコイル温度検出手段１１１を設け、このコイ
ル温度検出手段１１１からの信号により、前記圧縮機１
０２、四方弁１０３、三方弁１０６、１０９および室外
熱交換器用ファンモータ１１０を制御する制御回路１１
２が設けられていた。As shown in the figure, a compressor 102, a four-way valve 103, an outdoor heat exchanger 104, a capillary tube 105, and a first three-way valve 106 are sequentially connected to an outdoor unit main body 101, and an indoor unit main body 107 chamber is connected. The indoor heat exchanger 108 is connected to the inner heat exchanger 108, and the indoor heat exchanger 108 is connected to the compressor 102 via the second three-way valve 109 provided on the outdoor unit main body 101 side and the four-way valve 103 to perform air conditioning. The refrigerant circuit of the machine was configured. Then, the outdoor heat exchanger fan motor 110 and the outdoor heat exchanger 10 are provided in the outdoor unit main body 101.
4 is provided with a coil temperature detecting means 111 for detecting the temperature of the refrigerant in the gas side pipe on the side of the compressor 102, and the compressor 1 is operated by a signal from the coil temperature detecting means 111.
02, four-way valve 103, three-way valves 106 and 109, and a control circuit 11 for controlling the fan motor 110 for the outdoor heat exchanger
Two were provided.
【０００５】上記構成において、空気調和機の暖房運転
中に室外側熱交換器１０４の温度が低下したことをコイ
ル温度検出手段１１１が検出すると、前記室外側熱交換
器１０４への霜付きを防止するため、制御回路１１２に
よって四方弁１０３を切り換えると同時に暖房運転を中
止し、冷房運転をすることで室外側熱交換器１０４に暖
かい冷媒を送り除霜運転を行っていた。In the above structure, when the coil temperature detecting means 111 detects that the temperature of the outdoor heat exchanger 104 has dropped during the heating operation of the air conditioner, frost formation on the outdoor heat exchanger 104 is prevented. Therefore, the control circuit 112 switches the four-way valve 103, and at the same time, the heating operation is stopped and the cooling operation is performed to send the warm refrigerant to the outdoor heat exchanger 104 to perform the defrosting operation.
【０００６】[0006]
【発明が解決しようとする課題】このような従来の空気
調和機の除霜制御装置では、外気温度が非常に低い状況
で暖房運転を行うと、室外側熱交換器１０４の除霜運転
が頻繁に行われることになり、除霜運転中は室内温度が
低下し、暖房効率が悪くなり快適性が損なわれるという
問題があった。In such a conventional defrosting control device for an air conditioner, when the heating operation is performed in a situation where the outside air temperature is very low, the outdoor heat exchanger 104 is frequently defrosted. Therefore, there is a problem that the indoor temperature is lowered during the defrosting operation, the heating efficiency is deteriorated, and the comfort is deteriorated.
【０００７】本発明は上記課題を解決するもので、室外
側熱交換器に着霜することがなく、除霜運転を必要とし
ない空気調和機の着霜防止制御装置を提供することを目
的とする。The present invention is intended to solve the above problems, and an object of the present invention is to provide a frost prevention control device for an air conditioner that does not frost the outdoor heat exchanger and does not require defrosting operation. To do.
【０００８】[0008]
【課題を解決するための手段】本発明の空気調和機の着
霜防止制御装置は、上記目的を達成するために、空気調
和機の室外側熱交換器の外気吸込口側に設けられる電気
式ヒータと、この電気式ヒータの加熱を制御する電気式
ヒータ制御装置とを備え、暖房運転時に前記室外側熱交
換器の温度低下を検出し、前記電気式ヒータ制御装置を
介して電気式ヒータを加熱し、前記室外側熱交換器の着
霜を防止する構成とする。In order to achieve the above object, a frost prevention control device for an air conditioner according to the present invention is an electric type installed on the outside air intake port side of an outdoor heat exchanger of an air conditioner. A heater and an electric heater control device for controlling heating of the electric heater are provided, a temperature decrease of the outdoor heat exchanger is detected during heating operation, and an electric heater is controlled via the electric heater control device. It is configured to be heated to prevent frost formation on the outdoor heat exchanger.
【０００９】[0009]
【作用】本発明は上記した構成により、空気調和機を暖
房運転した時、室外側熱交換器の温度が低下し、着霜し
そうになると、制御回路からの信号で電気式ヒータ制御
装置が動作し、電気式ヒータの熱で室外側熱交換器が加
熱され着霜が防止されることとなる。According to the present invention, when the air conditioner is operated for heating, the temperature of the outdoor heat exchanger decreases and frost formation is likely to occur, and the electric heater control device operates according to the signal from the control circuit. However, the heat of the electric heater heats the outdoor heat exchanger to prevent frost formation.
【００１０】[0010]
【実施例】以下、本発明の一実施例について図１を参照
しながら説明する。なお、従来例に付した符号と同一符
号は同一物を示し、詳細な説明は省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. The same reference numerals as those used in the conventional example indicate the same items, and detailed description thereof will be omitted.
【００１１】図に示すように、室外側熱交換器１０４の
外気吸込口側に電気式ヒータ１を設け、この電気式ヒー
タ１の加熱を制御する電気式ヒータ制御装置２をコイル
温度検出手段１１１の信号を受けて制御する制御回路１
１２に接続している。As shown in the drawing, an electric heater 1 is provided on the outside air inlet side of the outdoor heat exchanger 104, and an electric heater control device 2 for controlling heating of the electric heater 1 is provided with a coil temperature detecting means 111. Control circuit 1 for receiving and controlling
It is connected to 12.
【００１２】上記構成において、空気調和機の暖房運転
時に、室外側熱交換器１０４の温度が低下すると、コイ
ル温度検出手段１１１が前記室外側熱交換器１０４の温
度低下を検出し、その温度情報を制御回路１１２に伝達
する。そして、前記制御回路１１２は、コイル温度検出
手段１１１から伝達された温度情報を基に、電気式ヒー
タ制御装置２に信号が伝達され、前記制御回路１１２か
ら信号を受けた電気式ヒータ制御装置２は、信号の情報
に応じて電気式ヒータ１を加熱し、室外側熱交換器１０
４に吸い込まれる外気の温度を上昇させ、室外側熱交換
器１０４の着霜が防止されることとなり、暖房運転の続
行が可能となる。In the above structure, when the temperature of the outdoor heat exchanger 104 decreases during the heating operation of the air conditioner, the coil temperature detecting means 111 detects the temperature decrease of the outdoor heat exchanger 104 and the temperature information thereof is obtained. Is transmitted to the control circuit 112. Then, the control circuit 112 transmits a signal to the electric heater control device 2 based on the temperature information transmitted from the coil temperature detection means 111, and receives the signal from the control circuit 112. Heats the electric heater 1 according to the information of the signal, and the outdoor heat exchanger 10
The temperature of the outside air sucked into No. 4 is raised to prevent frost formation on the outdoor heat exchanger 104, and the heating operation can be continued.
【００１３】[0013]
【発明の効果】以上の実施例から明らかなように、本発
明によれば、室外側熱交換器の外気吸込口側に電気式ヒ
ータを設け、空気調和機の暖房運転時において、室外側
熱交換器が低温になったとき、前記電気式ヒータを加熱
し、室外側熱交換器に吸い込まれる外気の温度を上昇さ
せるように構成しているので、暖房運転を中断させる除
霜運転の必要をなくし、室内の温度低下を防止し、快適
性を向上することのできる空気調和機の着霜防止制御装
置を提供できる。As is apparent from the above embodiments, according to the present invention, an electric heater is provided on the outdoor air intake port side of the outdoor heat exchanger so that the outdoor heat is generated during the heating operation of the air conditioner. When the temperature of the exchanger becomes low, the electric heater is heated to raise the temperature of the outside air drawn into the outdoor heat exchanger, so that the defrosting operation for interrupting the heating operation is required. Therefore, it is possible to provide a frost prevention control device for an air conditioner, which can prevent the temperature drop in the room and improve comfort.
【図１】本発明の一実施例の空気調和機の着霜防止制御
装置の構成を示す回路図FIG. 1 is a circuit diagram showing a configuration of a frost prevention control device for an air conditioner according to an embodiment of the present invention.
【図２】従来の空気調和機の構成を示す回路図FIG. 2 is a circuit diagram showing a configuration of a conventional air conditioner.
１ 電気式ヒータ ２ 電気式ヒータ制御装置 １０４ 室外側熱交換器 １１１ コイル温度検出手段 １１２ 制御回路 1 Electric Heater 2 Electric Heater Control Device 104 Outdoor Heat Exchanger 111 Coil Temperature Detection Means 112 Control Circuit
Claims (1)
込口側に設けられる電気式ヒータと、この電気式ヒータ
の加熱を制御する電気式ヒータ制御装置とを備え、暖房
運転時に前記室外側熱交換器の温度低下を検出し、前記
電気式ヒータ制御装置を介して電気式ヒータを加熱し、
前記室外側熱交換器の着霜を防止する構成とした空気調
和機の着霜防止制御装置。1. An electric heater provided on the outside air inlet side of an outdoor unit side heat exchanger of an air conditioner, and an electric heater control device for controlling heating of the electric heater. Detecting a temperature drop in the outdoor heat exchanger, heating the electric heater via the electric heater controller,
A frost prevention control device for an air conditioner configured to prevent frost formation on the outdoor heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12693793A JPH06337185A (en) | 1993-05-28 | 1993-05-28 | Preventing and controlling device for frosting in air-conditioning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12693793A JPH06337185A (en) | 1993-05-28 | 1993-05-28 | Preventing and controlling device for frosting in air-conditioning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06337185A true JPH06337185A (en) | 1994-12-06 |
Family
ID=14947601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12693793A Pending JPH06337185A (en) | 1993-05-28 | 1993-05-28 | Preventing and controlling device for frosting in air-conditioning machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06337185A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010121847A (en) * | 2008-11-19 | 2010-06-03 | Hitachi Appliances Inc | Air conditioner |
| CN111609518A (en) * | 2020-05-07 | 2020-09-01 | 青岛海尔空调电子有限公司 | Control method for air conditioner and air conditioner |
| CN113587509A (en) * | 2021-06-24 | 2021-11-02 | 岳少鹏 | Anti-frost heat exchanger fin for air source heat pump |
| CN114674071A (en) * | 2020-12-24 | 2022-06-28 | 广东美的制冷设备有限公司 | Electric heater control method and device, air conditioner and storage medium |
-
1993
- 1993-05-28 JP JP12693793A patent/JPH06337185A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010121847A (en) * | 2008-11-19 | 2010-06-03 | Hitachi Appliances Inc | Air conditioner |
| CN111609518A (en) * | 2020-05-07 | 2020-09-01 | 青岛海尔空调电子有限公司 | Control method for air conditioner and air conditioner |
| CN111609518B (en) * | 2020-05-07 | 2023-02-03 | 青岛海尔空调电子有限公司 | Control method for air conditioner and air conditioner |
| CN114674071A (en) * | 2020-12-24 | 2022-06-28 | 广东美的制冷设备有限公司 | Electric heater control method and device, air conditioner and storage medium |
| CN114674071B (en) * | 2020-12-24 | 2024-01-23 | 广东美的制冷设备有限公司 | Electric heater control method and device, air conditioner and storage medium |
| CN113587509A (en) * | 2021-06-24 | 2021-11-02 | 岳少鹏 | Anti-frost heat exchanger fin for air source heat pump |
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