JP2002327951A - Controlling device of after-purge of outdoor fan in air conditioner - Google Patents
Controlling device of after-purge of outdoor fan in air conditionerInfo
- Publication number
- JP2002327951A JP2002327951A JP2001132028A JP2001132028A JP2002327951A JP 2002327951 A JP2002327951 A JP 2002327951A JP 2001132028 A JP2001132028 A JP 2001132028A JP 2001132028 A JP2001132028 A JP 2001132028A JP 2002327951 A JP2002327951 A JP 2002327951A
- Authority
- JP
- Japan
- Prior art keywords
- outdoor
- blower fan
- compressor
- purge
- air conditioner
- 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
- Control Of Positive-Displacement Pumps (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、空調機の室外機に
設けられた室外送風ファンのアフターパージ制御装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an after-purge control device for an outdoor blower fan provided in an outdoor unit of an air conditioner.
【０００２】[0002]
【従来の技術】従来、室外機に設けた圧縮機により冷媒
配管を通して室外熱交換器と室内熱交換器との間で冷媒
を循環させる冷凍サイクルが形成されると共に、室外機
に室外送風ファンが設けられている空調機において、圧
縮機の停止時において、室外送風ファンの運転を一定時
間継続させたのち停止させるというアフターパージ制御
を行うようにしたものが知られている（例えば、特開平
１１−２１８３５２号公報、特開平５−２１５３８６号
公報）。2. Description of the Related Art Conventionally, a refrigeration cycle for circulating a refrigerant between an outdoor heat exchanger and an indoor heat exchanger through a refrigerant pipe by a compressor provided in an outdoor unit has been formed, and an outdoor blower fan has been installed in the outdoor unit. Among the provided air conditioners, there is known an air conditioner in which after-purge control is performed such that when the compressor is stopped, the operation of the outdoor blower fan is continued for a certain period of time and then stopped (for example, Japanese Patent Laid-Open No. -218352, JP-A-5-215386).
【０００３】この従来技術は、空調機の運転停止に伴な
う圧縮機の停止時、又、冷媒系の運転制御に伴なう圧縮
機の停止時において、圧縮機に接続されている電装部を
冷却する目的で、室外送風ファンをアフターパージさせ
るようにしたもので、これにより、発熱状態の電装部を
冷却させて、電装部の損傷を防止できるようにしたもの
であった。[0003] The prior art discloses an electrical component connected to a compressor when the compressor is stopped due to the operation stop of the air conditioner or when the compressor is stopped due to the operation control of the refrigerant system. In order to cool the electric equipment, the outdoor blower fan is subjected to after-purging, thereby cooling the heat-generating electric equipment and preventing the electric equipment from being damaged.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来技
術では、圧縮機の停止時においては、電装部の発熱状態
の如何を問わず、室外送風ファンをアフターパージさせ
るようにしていた。即ち、電装部が発熱している場合に
は室外送風ファンをアフターパージさせる必要はある
が、外気温度が低い場合や圧縮機が低速運転している場
合等、電装部が発熱していない場合には室外送風ファン
をアフターパージさせる必要はないもので、従来のよう
に、このようなアフターパージ不要時においても室外送
風ファンをアフターパージさせることは、室外送風ファ
ンの運転に消費する電力の無駄につながるという問題が
あった。However, in the prior art, when the compressor is stopped, the outdoor blower fan is after-purged regardless of the heat generation state of the electrical component. In other words, it is necessary to after-purge the outdoor blower fan when the electrical component is generating heat, but when the electrical component does not generate heat, such as when the outside air temperature is low or when the compressor is operating at low speed. It is not necessary to after-purge the outdoor blower fan.Conventionally, even when such after-purging is not necessary, after-purging the outdoor blower fan wastes power consumed for the operation of the outdoor blower fan. There was a problem of being connected.
【０００５】本発明は、上記のような問題を解決するた
めになされたもので、電装部が発熱している場合には室
外送風ファンをアフターパージさせ、電装部が発熱して
いないアフターパージ不要時においては、室外送風ファ
ンをアフターパージさせないようにして、室外送風ファ
ンの運転に消費する電力の無駄をなくすことができるよ
うにした空調機における室外送風ファンのアフターパー
ジ制御装置を提供することを課題としている。SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem. When an electric component is generating heat, an outdoor blower fan is after-purged, and no after-purging is required when the electric component does not generate heat. It is an object of the present invention to provide an after-purge control device for an outdoor blower fan in an air conditioner that can prevent the outdoor blower fan from being after-purged, thereby eliminating waste of power consumed in operation of the outdoor blower fan. It is an issue.
【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、本発明の空調機における室外送風ファンのアフター
パージ制御装置は、室外機に設けた圧縮機により冷媒配
管を通して室外熱交換器と室内熱交換器との間で冷媒を
循環させる冷凍サイクルが形成されると共に、室外機に
室外送風ファンが設けられている空調機において、前記
圧縮機に接続されている電装部に温度検知器が設けら
れ、圧縮機の停止時において、前記温度検知器が設定温
度未満を検知している場合には室外送風ファンの運転を
停止させ、温度検知器が設定温度以上を検知している場
合には室外送風ファンの運転を一定時間継続させたのち
停止させるように制御する構成とした。In order to solve the above-mentioned problems, an after-purge control apparatus for an outdoor blower fan in an air conditioner according to the present invention comprises an outdoor heat exchanger and an indoor heat exchanger through a refrigerant pipe by a compressor provided in an outdoor unit. A refrigeration cycle for circulating the refrigerant between the heat exchanger is formed, and in an air conditioner in which an outdoor fan is provided in an outdoor unit, a temperature detector is provided in an electrical unit connected to the compressor. When the compressor is stopped, the operation of the outdoor blower fan is stopped when the temperature detector detects a temperature lower than the set temperature, and the outdoor fan is stopped when the temperature detector detects the temperature equal to or higher than the set temperature. The configuration is such that the operation of the blower fan is controlled to be stopped after being continued for a certain period of time.
【０００７】[0007]
【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
各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形態である空調機の回路説明図、図２は室外
送風ファンのアフターパージ制御を示すフローチャート
である。Embodiments of the present invention will be described below with reference to the drawings. Note that the specific configuration of the present invention is not limited to the following embodiments. FIG. 1 is a circuit diagram of an air conditioner according to one embodiment of the present invention, and FIG. 2 is a flowchart showing after-purging control of an outdoor blower fan.
【０００８】この空調機は、室外機１と室内機２を備
え、室外機１に設けた圧縮機３０により冷媒配管３１を
通して室外熱交換器３２と室内熱交換器３３との間で冷
媒を循環させる冷凍サイクル３が形成されている。この
冷凍サイクル３には、このほかに絞り装置３４、アキュ
ームレータ（図示省略）、四方弁３５が設けられてお
り、この四方弁３５が切り換えられることにより、空調
機が冷房運転又は暖房運転に切り替えられる。即ち、四
方弁３５が冷房側に切り替えられると、冷媒が矢印Ａ方
向に流れ、室外熱交換器３２が凝縮器として作用し、室
内熱交換器３３が蒸発器として作用して、この室内熱交
換器３３による冷気が室内送風ファン２０により送風さ
れて冷房運転状態となる。又、四方弁３５を暖房側に切
り替えられると、冷媒が矢印Ｂ方向に流れ、室外熱交換
器３２が蒸発器として作用し、室内熱交換器３３が凝縮
機として作用して、この室内熱交換器３３による暖気が
室内送風ファンに２０より送風されて暖房運転状態とな
る。This air conditioner includes an outdoor unit 1 and an indoor unit 2, and circulates a refrigerant between an outdoor heat exchanger 32 and an indoor heat exchanger 33 through a refrigerant pipe 31 by a compressor 30 provided in the outdoor unit 1. A refrigeration cycle 3 is formed. The refrigeration cycle 3 is further provided with a throttle device 34, an accumulator (not shown), and a four-way valve 35. By switching the four-way valve 35, the air conditioner is switched to a cooling operation or a heating operation. . That is, when the four-way valve 35 is switched to the cooling side, the refrigerant flows in the direction of arrow A, the outdoor heat exchanger 32 acts as a condenser, and the indoor heat exchanger 33 acts as an evaporator, and this indoor heat exchange is performed. The cool air from the heater 33 is blown by the indoor blower fan 20 to enter a cooling operation state. When the four-way valve 35 is switched to the heating side, the refrigerant flows in the direction of arrow B, the outdoor heat exchanger 32 acts as an evaporator, and the indoor heat exchanger 33 acts as a condenser, and this indoor heat exchange is performed. The warm air from the heater 33 is blown from the indoor blower fan 20 to be in a heating operation state.
【０００９】又、前記圧縮機３０には、この圧縮機３０
を運転制御するトランジスタモジュール等の電装部４０
が接続され、この電装部４０は大容量の電流によって発
熱が生じるため、損傷を防止する上から発熱を抑制させ
る必要がある。尚、図１において、４１は電装部のヒー
トシンク（放熱板）である。The compressor 30 includes the compressor 30
Control unit 40 such as a transistor module for controlling the operation of
The electrical component 40 generates heat due to a large amount of current, so it is necessary to suppress the heat generation in order to prevent damage. In FIG. 1, reference numeral 41 denotes a heat sink (radiator plate) of the electrical component.
【００１０】又、室外機１には、室外送風ファン５が設
けられており、この室外送風ファン５による送風によっ
て、室外機１の内部に設置された室外熱交換器３２、ヒ
ートシンク４１、それに前記電装部４０等を冷却させる
ようになっている。Further, the outdoor unit 1 is provided with an outdoor blower fan 5. By the air blown by the outdoor blower fan 5, the outdoor heat exchanger 32, the heat sink 41 and the heat exchanger 41 installed inside the outdoor unit 1 are provided. The electrical unit 40 and the like are cooled.
【００１１】そして、この室外送風ファン５には、アフ
ターパージ制御装置６が接続されており、このアフター
パージ制御装置６は、空調機の運転停止に伴なう圧縮機
３０の停止時、又、冷媒系の運転制御に伴なう圧縮機３
０の停止時において、室外送風ファン５の停止時期を制
御するように構成されている。即ち、前記圧縮機３０の
電装部４０（ヒートシンク４１を含む）に温度検知器６
０が設けられ、この温度検知器６０が設定温度（通常６
０℃〜７０℃）未満を検知している場合には室外送風フ
ァン５の運転を圧縮機３０の停止と同時に停止させ、
又、温度検知器６０が設定温度以上を検知している場合
には圧縮機３０が停止したのち室外送風ファン５の運転
を一定時間（通常、２０秒〜３０秒）継続させ、この一
定時間継続後に停止させるように制御される。An after-purge control device 6 is connected to the outdoor blower fan 5. The after-purge control device 6 is used when the compressor 30 is stopped due to the stoppage of the operation of the air conditioner. Compressor 3 accompanying operation control of refrigerant system
At the time of stop of 0, the stop timing of the outdoor blower fan 5 is controlled. That is, the temperature detector 6 is connected to the electrical unit 40 (including the heat sink 41) of the compressor 30.
0, and the temperature detector 60 is set to the set temperature (normally 6
0 ° C. to 70 ° C.), the operation of the outdoor blower fan 5 is stopped at the same time as the compressor 30 is stopped,
When the temperature detector 60 detects the temperature equal to or higher than the set temperature, the operation of the outdoor blower fan 5 is continued for a certain time (normally, 20 seconds to 30 seconds) after the compressor 30 is stopped. It is controlled to stop later.
【００１２】次に、このアフターパージ制御装置６によ
る制御を図２に示すフローチャートによって説明する。
空調機の運転中において、図示省略したリモコンによる
空調機の運転停止又は図示省略したサーミスタの室内温
度の変化等に伴なうサーモＯＦＦ（冷媒系の運転制御）
により圧縮機３０の停止が指示されると（ステップＳ
１）、そのときの電装部４０（ヒートシンク４１を含
む）の温度が温度検知器６０により検知され（ステップ
Ｓ２）、この温度検知器６０が設定温度未満を検知して
いる場合（ＮＯ）には室外送風ファン５の運転を圧縮機
３０の停止と同時に停止させ（ステップＳ４）、又、温
度検知器６０が設定温度以上を検知している場合（ＹＥ
Ｓ）には圧縮機３０が停止したのち室外送風ファン５の
運転を一定時間継続させ（ステップＳ３）、この一定時
間継続後に室外送風ファン５の運転を停止させる（ステ
ップＳ４）ようになっている。Next, control by the after-purge control device 6 will be described with reference to a flowchart shown in FIG.
During operation of the air conditioner, operation of the air conditioner is stopped by a remote controller (not shown) or the thermo-off is caused by a change in the room temperature of the thermistor (not shown) (refrigerant system operation control).
Is instructed to stop the compressor 30 (step S
1) At that time, the temperature of the electrical unit 40 (including the heat sink 41) is detected by the temperature detector 60 (step S2), and if the temperature detector 60 detects a temperature lower than the set temperature (NO), The operation of the outdoor blower fan 5 is stopped simultaneously with the stop of the compressor 30 (step S4), and when the temperature detector 60 detects the temperature equal to or higher than the set temperature (YE).
In S), after the compressor 30 is stopped, the operation of the outdoor blower fan 5 is continued for a certain period of time (step S3), and after the fixed time period, the operation of the outdoor blower fan 5 is stopped (step S4). .
【００１３】[0013]
【発明の効果】以上説明してきたように、本発明の空調
機における室外送風ファンのアフターパージ制御装置に
あっては、圧縮機の電装部が発熱している場合には室外
送風ファンをアフターパージさせるように制御するた
め、電装部の発熱を抑制して損傷を防止することができ
る。また、外気温度が低い場合など、電装部が発熱して
いないアフターパージ不要時においては、室外送風ファ
ンをアフターパージさせないように制御するため、室外
送風ファンの運転に消費する電力の無駄をなくすことが
できるという効果が得られる。As described above, in the after-purge control apparatus for the outdoor blower fan in the air conditioner according to the present invention, the outdoor blower fan is purged when the electric component of the compressor is generating heat. Since the control is performed such that heat is generated, it is possible to suppress heat generation of the electrical component and prevent damage. In addition, when the after-purging operation is not necessary, such as when the outside air temperature is low, the outdoor unit is controlled so as not to perform the after-purging operation. Is obtained.
【図１】本発明の実施の１形態である空調機の回路説明
図である。FIG. 1 is a circuit diagram illustrating an air conditioner according to an embodiment of the present invention.
【図２】室外送風ファンのアフターパージ制御を示すフ
ローチャートである。FIG. 2 is a flowchart showing after-purging control of an outdoor blower fan.
１ 室外機 ２ 室内機 ２０ 室内送風ファン ３ 冷凍サイクル ３０ 圧縮機 ３１ 冷媒配管 ３２ 室外熱交換器 ３３ 室内熱交換器 ３４ 絞り装置 ３５ 四方弁 ４０ 電装部 ４１ ヒートシンク ５ 室外送風ファン ６ アフターパージ制御装置 ６０ 温度検知器 REFERENCE SIGNS LIST 1 outdoor unit 2 indoor unit 20 indoor blower fan 3 refrigeration cycle 30 compressor 31 refrigerant pipe 32 outdoor heat exchanger 33 indoor heat exchanger 34 expansion device 35 four-way valve 40 electrical unit 41 heat sink 5 outdoor blower fan 6 after-purge control device 60 Temperature detector
Claims (1)
通して室外熱交換器と室内熱交換器との間で冷媒を循環
させる冷凍サイクルが形成されると共に、室外機に室外
送風ファンが設けられている空調機において、 前記圧縮機に接続されている電装部に温度検知器が設け
られ、 圧縮機の停止時において、前記温度検知器が設定温度未
満を検知している場合には室外送風ファンの運転を停止
させ、温度検知器が設定温度以上を検知している場合に
は室外送風ファンの運転を一定時間継続させたのち停止
させるように制御することを特徴とした室外送風ファン
のアフターパージ制御装置。1. A refrigeration cycle for circulating a refrigerant between an outdoor heat exchanger and an indoor heat exchanger through a refrigerant pipe by a compressor provided in an outdoor unit is formed, and an outdoor blower fan is provided in the outdoor unit. In the air conditioner, a temperature detector is provided in an electrical unit connected to the compressor, and when the compressor is stopped, if the temperature detector detects a temperature lower than a set temperature, the outdoor blower fan After-purge of the outdoor blower fan, wherein if the temperature detector detects a temperature equal to or higher than the set temperature, the operation of the outdoor blower fan is controlled to be continued for a certain period of time and then stopped. Control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001132028A JP2002327951A (en) | 2001-04-27 | 2001-04-27 | Controlling device of after-purge of outdoor fan in air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001132028A JP2002327951A (en) | 2001-04-27 | 2001-04-27 | Controlling device of after-purge of outdoor fan in air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002327951A true JP2002327951A (en) | 2002-11-15 |
Family
ID=18980107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001132028A Pending JP2002327951A (en) | 2001-04-27 | 2001-04-27 | Controlling device of after-purge of outdoor fan in air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002327951A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3001114A3 (en) * | 2014-09-26 | 2016-04-20 | Mitsubishi Electric Corporation | Outdoor device and air conditioner |
| JP2017015387A (en) * | 2012-03-22 | 2017-01-19 | ビーイー・エアロスペース・インコーポレーテッドＢ／Ｅ Ａｅｒｏｓｐａｃｅ， Ｉｎｃ． | In-vehicle refrigeration device with steam cycle system |
| CN115076776A (en) * | 2022-05-12 | 2022-09-20 | 重庆海尔空调器有限公司 | Air conditioner and control method thereof |
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|---|---|---|---|---|
| JPS62132377U (en) * | 1986-02-13 | 1987-08-20 | ||
| JPH0270134U (en) * | 1988-11-18 | 1990-05-28 | ||
| JPH06265199A (en) * | 1993-03-15 | 1994-09-20 | Matsushita Seiko Co Ltd | Fan controller of air conditioner |
-
2001
- 2001-04-27 JP JP2001132028A patent/JP2002327951A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62132377U (en) * | 1986-02-13 | 1987-08-20 | ||
| JPH0270134U (en) * | 1988-11-18 | 1990-05-28 | ||
| JPH06265199A (en) * | 1993-03-15 | 1994-09-20 | Matsushita Seiko Co Ltd | Fan controller of air conditioner |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017015387A (en) * | 2012-03-22 | 2017-01-19 | ビーイー・エアロスペース・インコーポレーテッドＢ／Ｅ Ａｅｒｏｓｐａｃｅ， Ｉｎｃ． | In-vehicle refrigeration device with steam cycle system |
| US10488084B2 (en) | 2012-03-22 | 2019-11-26 | B/E Aerospace, Inc. | Vehicle refrigeration equipment having a vapor cycle system |
| EP3001114A3 (en) * | 2014-09-26 | 2016-04-20 | Mitsubishi Electric Corporation | Outdoor device and air conditioner |
| JP2016070519A (en) * | 2014-09-26 | 2016-05-09 | 三菱電機株式会社 | Outdoor machine and air conditioning device |
| US10145596B2 (en) | 2014-09-26 | 2018-12-04 | Mitsubishi Electric Corporation | Outdoor device and air conditioner |
| CN115076776A (en) * | 2022-05-12 | 2022-09-20 | 重庆海尔空调器有限公司 | Air conditioner and control method thereof |
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