JP2011252641A - Air conditioner - Google Patents
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- JP2011252641A JP2011252641A JP2010125604A JP2010125604A JP2011252641A JP 2011252641 A JP2011252641 A JP 2011252641A JP 2010125604 A JP2010125604 A JP 2010125604A JP 2010125604 A JP2010125604 A JP 2010125604A JP 2011252641 A JP2011252641 A JP 2011252641A
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Abstract
Description
本発明は、運転停止中において、外気温度を把握する機能を備えた空気調和機に関するものである。 The present invention relates to an air conditioner having a function of grasping an outside air temperature during operation stop.
従来、室外機の吸込部に取り付けられたサーミスタからなる温度センサにより外気温度を検知しており、運転開始してから、ある一定時間後に外気温度の検出を行なっている（例えば、特許文献１参照）。 Conventionally, the outside air temperature is detected by a temperature sensor composed of a thermistor attached to the suction portion of the outdoor unit, and the outside air temperature is detected after a certain time from the start of operation (for example, see Patent Document 1). ).
しかしながら、上記外気温度を検知する温度センサは、室外機の吸込側において室外熱交換器にホルダーを使用して取り付けている場合が多い。そのため、この取付位置では、運転停止後に一定時間室外ファンが動作している時は、外気温度を正確に把握できるが、例えば、空気調和機が暖房運転を行いサーモオフなどで圧縮機が停止し、室外ファンも停止した後の室内機の凝縮温度が高い時などは、冷凍サイクルが均圧する時に室外熱交換器温度が上がり、外気温度センサが熱交換器の輻射熱を検出し、そのため実際の外気温度よりも高い温度を検知してしまうことになる。 However, the temperature sensor that detects the outside air temperature is often attached to the outdoor heat exchanger using a holder on the suction side of the outdoor unit. Therefore, at this mounting position, when the outdoor fan has been operating for a certain period of time after stopping operation, the outside air temperature can be accurately grasped.For example, the air conditioner performs heating operation and the compressor is stopped by thermo-off, etc. When the condensation temperature of the indoor unit is high after the outdoor fan is stopped, the outdoor heat exchanger temperature rises when the refrigeration cycle equalizes, and the outdoor temperature sensor detects the radiant heat of the heat exchanger. Will detect a higher temperature.
従って運転の停止中においても外気温度を室内側で表示している場合には、誤った室外温度の表示をして利用快適性が低下するという問題があった。また、圧縮機停止後、または室外ファン停止後に室外温度を更新しない様にすると、実際に外気温度が上昇した時に誤った室外温度の表示をして利用快適性が低下するという問題があった。 Therefore, when the outside air temperature is displayed indoors even while the operation is stopped, there is a problem that an erroneous outdoor temperature is displayed and use comfort is reduced. Further, if the outdoor temperature is not updated after the compressor is stopped or the outdoor fan is stopped, there is a problem that when the outdoor temperature actually increases, the outdoor temperature is erroneously displayed and the use comfort is lowered.
本発明は、前記従来の課題を解決するもので、正確に外気温度を検出し、使用者の利用快適性を損なうことのない空気調和機を提供することを目的とする。 The present invention solves the above-described conventional problems, and an object thereof is to provide an air conditioner that accurately detects the outside air temperature and does not impair user comfort.
上記課題を解決するため、本発明の空気調和機は、圧縮機・室外熱交換器・室外ファン・四方弁・電動膨張弁を少なくとも有する室外機と、室内熱交換器・室内ファンを少なくとも有する室内機とを接続してなる空気調和機において、室外熱交換器の吸い込み側側面に位置し外気温度を検出する外気温度検出手段と、室外熱交換器の温度を検出する室外熱交換器温度検出手段とを備え、圧縮機停止が停止してから外気温度と熱交換器温度との温度差が設定値になるまで、室外ファンを運転させることを特徴とするものである。 In order to solve the above problems, an air conditioner of the present invention includes an outdoor unit having at least a compressor, an outdoor heat exchanger, an outdoor fan, a four-way valve, and an electric expansion valve, and an indoor unit having at least an indoor heat exchanger and an indoor fan. In an air conditioner that is connected to an outdoor heat exchanger, an outdoor air temperature detecting means that is located on the suction side surface of the outdoor heat exchanger and detects an outdoor air temperature, and an outdoor heat exchanger temperature detecting means that detects the temperature of the outdoor heat exchanger The outdoor fan is operated until the temperature difference between the outside air temperature and the heat exchanger temperature reaches a set value after the compressor stop is stopped.
本発明の空気調和機は、正確な外気温度を検出することが出来る。 The air conditioner of the present invention can detect an accurate outside air temperature.
第１の発明は、圧縮機・室外熱交換器・室外ファン・四方弁・電動膨張弁を少なくとも有する室外機と、室内熱交換器・室内ファンを少なくとも有する室内機とを接続してなる空気調和機において、室外熱交換器の吸い込み側側面に位置し外気温度を検出する外気温度検出手段と、室外熱交換器の温度を検出する室外熱交換器温度検出手段とを備え、圧縮機停止が停止してから外気温度と熱交換器温度との温度差が設定値になるまで、室外ファンを運転させることで、圧縮機停止後に冷媒の状態により熱交換器の温度が上昇したときは室外ファンを駆動させ正確な外気温度を検出することが出来る。 The first invention is an air conditioner formed by connecting an outdoor unit having at least a compressor, an outdoor heat exchanger, an outdoor fan, a four-way valve, and an electric expansion valve, and an indoor unit having at least an indoor heat exchanger and an indoor fan. The compressor has an outdoor air temperature detecting means for detecting the outdoor air temperature located on the suction side surface of the outdoor heat exchanger, and an outdoor heat exchanger temperature detecting means for detecting the temperature of the outdoor heat exchanger, and the compressor stop is stopped. The outdoor fan is operated until the temperature difference between the outside air temperature and the heat exchanger temperature reaches the set value.When the temperature of the heat exchanger rises due to the state of the refrigerant after the compressor is stopped, It can be driven to detect the correct outside temperature.
また、例えば日射により室外温度センサの周囲に熱がこもって、高い温度を検出した場合も、熱交温度との温度差により室外ファンを駆動させ正確な外気温度を検出することが出来る。これらより、外気温度を室内側で表示している場合には、圧縮機の運転にかかわらず室外温度の表示をして利用快適性を向上させる事が可能となる。 Further, for example, even when heat accumulates around the outdoor temperature sensor due to solar radiation and a high temperature is detected, the outdoor fan can be driven by the temperature difference from the heat exchange temperature to detect an accurate outdoor air temperature. Accordingly, when the outdoor temperature is displayed indoors, it is possible to display the outdoor temperature regardless of the operation of the compressor and improve the use comfort.
以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.
（実施の形態１）
図１はこの発明の実施の形態１における空気調和機の冷媒回路の回路図である。図１に示すように、圧縮機８と、四方弁９と、室外熱交換器１０と、電動膨張弁１５と、室内熱交換器３とを環状に冷媒配管で接続して冷媒回路を形成している。そして、圧縮機８・四方弁９・室外熱交換器１０・電動膨張弁１５は室外機２内に配置し、室内熱交換器３は室内機１に配置している。本実施の形態の空気調和機は、室内機１と室外機２とを互いに冷媒回路を形成している冷媒配管で接続して構成されている。
(Embodiment 1)
1 is a circuit diagram of a refrigerant circuit of an air conditioner according to Embodiment 1 of the present invention. As shown in FIG. 1, a compressor 8, a four-way valve 9, an outdoor heat exchanger 10, an electric expansion valve 15, and an indoor heat exchanger 3 are annularly connected by a refrigerant pipe to form a refrigerant circuit. ing. The compressor 8, the four-way valve 9, the outdoor heat exchanger 10, and the electric expansion valve 15 are disposed in the outdoor unit 2, and the indoor heat exchanger 3 is disposed in the indoor unit 1. The air conditioner of the present embodiment is configured by connecting the indoor unit 1 and the outdoor unit 2 with a refrigerant pipe that forms a refrigerant circuit with each other.
また、この空気調和機は、室内熱交換器３の近傍に配置された室内ファン４と、室内ファン４を駆動させるファンモータ５、室温を検出する室内温度センサ６、これらを検出、制御を行う室内制御装置７を室内機１の内部に有している。 The air conditioner also detects and controls an indoor fan 4 disposed in the vicinity of the indoor heat exchanger 3, a fan motor 5 that drives the indoor fan 4, an indoor temperature sensor 6 that detects room temperature, and these. An indoor control device 7 is provided inside the indoor unit 1.
また、室外熱交換器１０へ送風する室外ファン１２、室外気温を検出する外気温度検出手段１１、室外熱交換器１０の温度を検出する室外熱交換器温度検出手段１４、圧縮機８・電動膨張弁１５・四方弁９を制御する室外制御装置１３を室外機２の内部に有している。そして、室内制御装置７と室外制御装置１３により空気調和機は制御される。 Moreover, the outdoor fan 12 which ventilates to the outdoor heat exchanger 10, the outdoor temperature detection means 11 which detects outdoor temperature, the outdoor heat exchanger temperature detection means 14 which detects the temperature of the outdoor heat exchanger 10, the compressor 8 and electric expansion An outdoor control device 13 that controls the valve 15 and the four-way valve 9 is provided inside the outdoor unit 2. The air conditioner is controlled by the indoor control device 7 and the outdoor control device 13.
次に、図２のフローチャートに従って、空気調和機の実施例を説明する。 Next, an embodiment of an air conditioner will be described according to the flowchart of FIG.
まず、空気調和機に圧縮機停止要求の処理がスタートすると、圧縮機８が停止しているかを判断し、圧縮機８が停止した場合、外気温度検出手段１１である室外温度センサにより検出された初期値Ｔｄ０を室外制御装置１３に記憶し、同様に室外熱交換器温度検出手段１４である熱交換器温度センサにより検出された初期値Ｔｃ０を室外制御装置１３に記憶する。 First, when processing of the compressor stop request is started in the air conditioner, it is determined whether the compressor 8 is stopped. When the compressor 8 is stopped, it is detected by the outdoor temperature sensor which is the outside air temperature detecting means 11. The initial value Td0 is stored in the outdoor control device 13, and similarly, the initial value Tc0 detected by the heat exchanger temperature sensor which is the outdoor heat exchanger temperature detecting means 14 is stored in the outdoor control device 13.
そして、室外ファン１２が停止しているかを判断し、室外ファン１２が停止した場合、外気温度検出手段１１により検出されたＴｄ１を室外制御装置１３に記憶し、同様に室外熱交換器温度検出手段１４により検出されたＴｃ１を室外制御装置１３に記憶する。 Then, it is determined whether or not the outdoor fan 12 is stopped. When the outdoor fan 12 is stopped, Td1 detected by the outdoor air temperature detecting means 11 is stored in the outdoor control device 13, and similarly the outdoor heat exchanger temperature detecting means. Tc1 detected by 14 is stored in the outdoor control device 13.
また、室内機の凝縮温度が高い時などは、冷凍サイクルが均圧する時に室外熱交換器温度が上がった状態、すなわち室外温度Ｔｄ１と熱交換器温度Ｔｃ１の温度差が設定値α１より大きくなった場合か、圧縮機停止後に外気温度が上がった状態、すなわち室外温度Ｔｄ１が初期値Ｔｄ０より設定値β１より大きくなった場合か、直射日光により輻射熱の影響が出る状態、すなわち熱交換器温度Ｔｃ１が初期値Ｔｃ０より設定値γ１より大きくな
った場合のいずれかが成立した場合は、室外ファン１２を駆動し、空気を循環させることで正確な外気温度を把握する。
Further, when the condensation temperature of the indoor unit is high, the outdoor heat exchanger temperature is increased when the refrigeration cycle is equalized, that is, the temperature difference between the outdoor temperature Td1 and the heat exchanger temperature Tc1 is larger than the set value α1. In the case where the outside air temperature has risen after the compressor is stopped, that is, the outdoor temperature Td1 is higher than the initial value Td0 than the set value β1, or the state where the influence of radiant heat is exerted by direct sunlight, that is, the heat exchanger temperature Tc1 is When any of the cases where the initial value Tc0 is larger than the set value γ1 is established, the outdoor fan 12 is driven and air is circulated to accurately grasp the outdoor temperature.
そして、室外温度Ｔｄ１と熱交換器温度Ｔｃ１の温度差が設定値α２より小さくなった場合か、室外温度Ｔｄ１が初期値Ｔｄ０より設定値β２より小さくなった場合か、熱交換器温度Ｔｃ１が初期値Ｔｃ０より設定値γ２より小さくなった場合すべてが成立したときに、室外ファン１２を停止し、その時の、室外温度Ｔｄ１と熱交換器温度Ｔｃ１を室外温度初期値Ｔｄ０と熱交換器温度初期値Ｔｃ０に置き換える。 When the temperature difference between the outdoor temperature Td1 and the heat exchanger temperature Tc1 is smaller than the set value α2, or when the outdoor temperature Td1 is smaller than the set value β2 than the initial value Td0, the heat exchanger temperature Tc1 is the initial value. When all values are satisfied when the value Tc0 is smaller than the set value γ2, the outdoor fan 12 is stopped, and the outdoor temperature Td1 and the heat exchanger temperature Tc1 at that time are set to the outdoor temperature initial value Td0 and the heat exchanger temperature initial value. Replace with Tc0.
なお、実施例として室外温度Ｔｄ１と熱交換器温度Ｔｃ１の温度差が設定値α１より大きくなった場合か、室外温度Ｔｄ１が初期値Ｔｄ０より設定値β１より大きくなった場合か、熱交換器温度Ｔｃ１が初期値Ｔｃ０より設定値γ１より大きくなった場合のいずれかが成立としたが、室外温度Ｔｄ１と熱交換器温度Ｔｃ１の温度差が設定値α１より大きくなった場合のみの判断でも同等の効果を得ることが出来る。 As an example, when the temperature difference between the outdoor temperature Td1 and the heat exchanger temperature Tc1 is larger than the set value α1, or when the outdoor temperature Td1 is larger than the initial value Td0 than the set value β1, or the heat exchanger temperature. One of the cases where Tc1 is larger than the set value γ1 from the initial value Tc0 is established, but the same judgment is made only when the temperature difference between the outdoor temperature Td1 and the heat exchanger temperature Tc1 is greater than the set value α1. An effect can be obtained.
以上のように、本実施の形態では外気温度を正確に検出することができるので、正確に外気温度を検出し、使用者の利用快適性を損なうことのない空気調和機を提供することができる。 As described above, since the outside air temperature can be accurately detected in the present embodiment, it is possible to provide an air conditioner that accurately detects the outside air temperature and does not impair the user's comfort of use. .
以上のように本発明にかかる空気調和装置は室外機で制御を行うことができるので、家庭用マルチエアコン、ヒートポンプ式温水給湯、ビル用マルチエアコン等の用途にも適用できる。 As described above, since the air conditioner according to the present invention can be controlled by the outdoor unit, it can be applied to uses such as home multi-air conditioners, heat pump hot water hot water supply, and building multi-conditioners.
１ 室内機
２ 室外機
３ 室内熱交換器
４ 室内ファン
５ ファンモータ
６ 室内温度センサ
７ 室内制御装置
８ 圧縮機
９ 四方弁
１０ 室外熱交換器
１１ 外気温度検出手段
１２ 室外ファン
１３ 室外制御装置
１４ 室外熱交換器温度検出手段
１５ 電動膨張弁
DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Outdoor unit 3 Indoor heat exchanger 4 Indoor fan 5 Fan motor 6 Indoor temperature sensor 7 Indoor controller 8 Compressor 9 Four-way valve 10 Outdoor heat exchanger 11 Outdoor air temperature detection means 12 Outdoor fan 13 Outdoor controller 14 Outdoor Heat exchanger temperature detection means 15 Electric expansion valve
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| JP2010125604A JP2011252641A (en) | 2010-06-01 | 2010-06-01 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010125604A JP2011252641A (en) | 2010-06-01 | 2010-06-01 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2011252641A true JP2011252641A (en) | 2011-12-15 |
Family
ID=45416716
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| Application Number | Title | Priority Date | Filing Date |
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| JP2010125604A Withdrawn JP2011252641A (en) | 2010-06-01 | 2010-06-01 | Air conditioner |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014190643A (en) * | 2013-03-28 | 2014-10-06 | Hitachi Appliances Inc | Refrigerator-freezer unit |
| CN106352636A (en) * | 2016-10-31 | 2017-01-25 | 广东美的制冷设备有限公司 | Control method and controller for air conditioner, and air conditioner |
| WO2018185923A1 (en) | 2017-04-07 | 2018-10-11 | 三菱電機株式会社 | Outdoor unit for air conditioner |
| JP2019027613A (en) * | 2017-07-26 | 2019-02-21 | 株式会社富士通ゼネラル | Air conditioner |
| CN111365819A (en) * | 2020-03-26 | 2020-07-03 | 宁波奥克斯电气股份有限公司 | Control method and device for adjusting high-temperature refrigerating capacity of air conditioner and air conditioner |
-
2010
- 2010-06-01 JP JP2010125604A patent/JP2011252641A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014190643A (en) * | 2013-03-28 | 2014-10-06 | Hitachi Appliances Inc | Refrigerator-freezer unit |
| CN106352636A (en) * | 2016-10-31 | 2017-01-25 | 广东美的制冷设备有限公司 | Control method and controller for air conditioner, and air conditioner |
| CN106352636B (en) * | 2016-10-31 | 2019-05-03 | 广东美的制冷设备有限公司 | Air-conditioner control method, controller and air conditioner |
| WO2018185923A1 (en) | 2017-04-07 | 2018-10-11 | 三菱電機株式会社 | Outdoor unit for air conditioner |
| CN110446894A (en) * | 2017-04-07 | 2019-11-12 | 三菱电机株式会社 | The outdoor unit of air conditioner |
| CN110446894B (en) * | 2017-04-07 | 2021-02-12 | 三菱电机株式会社 | Outdoor unit of air conditioner |
| US11131475B2 (en) | 2017-04-07 | 2021-09-28 | Mitsubishi Electric Corporation | Outdoor unit of air-conditioning apparatus |
| JP2019027613A (en) * | 2017-07-26 | 2019-02-21 | 株式会社富士通ゼネラル | Air conditioner |
| CN111365819A (en) * | 2020-03-26 | 2020-07-03 | 宁波奥克斯电气股份有限公司 | Control method and device for adjusting high-temperature refrigerating capacity of air conditioner and air conditioner |
| CN111365819B (en) * | 2020-03-26 | 2021-11-16 | 宁波奥克斯电气股份有限公司 | Control method and device for adjusting high-temperature refrigerating capacity of air conditioner and air conditioner |
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