JP2012052683A - Air conditioning control device - Google Patents
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Abstract
Description
本発明は空調装置の電動圧縮機の制御に関し、特に車両用空調装置の空調制御装置に関するものである。 The present invention relates to control of an electric compressor of an air conditioner, and more particularly to an air conditioner control device of a vehicle air conditioner.
従来、この種の冷凍回路に設けられる圧縮機は、通常運転ではガス冷媒を吸入、圧縮し、吐出するが、長時間放置後、または低温下での圧縮機停止時に外気温度や車両室内温度、圧縮機温度などの関係によっては冷媒がガス状態ではなく液冷媒状態で圧縮機内に溜まることがある。液冷媒が溜まったままの状態で空調装置を始動すれば圧縮機はそのまま始動し液圧縮を起こすことは従来からよく知られている。 Conventionally, a compressor provided in this type of refrigeration circuit sucks, compresses and discharges gas refrigerant in normal operation, but after being left for a long time or when the compressor is stopped at a low temperature, Depending on the relationship between the compressor temperature and the like, the refrigerant may accumulate in the compressor in a liquid refrigerant state instead of a gas state. It has been well known that if the air conditioner is started in a state where the liquid refrigerant is accumulated, the compressor is started as it is to cause liquid compression.
液圧縮を起こした際には圧縮負荷が大変大きくなり圧縮部内の摺動部が摩耗して耐久性が低下したり、液圧縮時の音が大きくなり乗員に不快感を与えたりすることもある。 When liquid compression occurs, the compression load becomes very large, the sliding part in the compression part wears down and the durability decreases, and the sound at the time of liquid compression becomes loud and may cause discomfort to the passenger .
かかる事情から、空調装置の始動時に起動信号を出力する手段と出力された信号に基づいて、電動圧縮機のモータの回転子を回転させることなくモータの巻き線を発熱させて、液冷媒を加熱蒸発することで液圧縮を回避する電動圧縮機が知られている。（例えば特許文献１参照）。 Under such circumstances, based on the means for outputting the start signal at the start of the air conditioner and the output signal, the motor winding is heated without rotating the motor rotor of the electric compressor, thereby heating the liquid refrigerant. Electric compressors that avoid liquid compression by evaporating are known. (For example, refer to Patent Document 1).
しかしながら、前記従来の構成では空調装置の始動時に常に液冷媒が圧縮機に溜まっているわけではないのに電動圧縮機を一定時間止めているので、不必要な場合であっても電動圧縮機が止まり、速やかに空調室内が空調されず、快適性が悪化するという課題を有していた。 However, in the conventional configuration, although the liquid refrigerant does not always accumulate in the compressor at the time of starting the air conditioner, the electric compressor is stopped for a certain period of time. It stopped, and the air-conditioned room was not quickly air-conditioned, and there was a problem that comfort deteriorated.
上記課題を解決するために、本発明に係る空調制御装置は、空調室内の温度を検出する温度検出手段Ａと、冷凍回路の電動圧縮機温度を検出する温度検出手段Ｂと、外気を検出する温度検出手段Ｃとを有し、空調装置を起動した時に前記温度検出手段Ａと前記温度検出手段Ｂまたは前記温度検出手段Ｃの温度差に基づいて電動圧縮機の始動回転数を決定する制御部を備えた構成としてある。 In order to solve the above problems, an air conditioning control device according to the present invention detects temperature detection means A for detecting the temperature in the air conditioning room, temperature detection means B for detecting the temperature of the electric compressor in the refrigeration circuit, and external air. And a control unit for determining a starting rotational speed of the electric compressor based on a temperature difference between the temperature detection unit A and the temperature detection unit B or the temperature detection unit C when the air conditioner is started. It is set as the structure provided with.
これによって、電動圧縮機内に液冷媒があっても当該電動圧縮機を適切な回転数で駆動することができ、冷媒状態に応じて液圧縮の発生を防止しつつ、速やかに空調することができる。 As a result, even if there is a liquid refrigerant in the electric compressor, the electric compressor can be driven at an appropriate number of revolutions, and air conditioning can be performed quickly while preventing the occurrence of liquid compression depending on the refrigerant state. .
本発明は、始動時に電動圧縮機に液冷媒が溜まっている場合には低回転で始動して液圧縮の圧縮負荷を軽減し、電動圧縮機の信頼性を向上するとともに、液圧縮時の不快な圧縮音を小さくして電動圧縮機を運転することができる。また、始動時に電動圧縮機に液冷媒が溜まっていない場合は空調制御部から指示された目標回転数で始動するので速やかに空調することが出来る。 In the present invention, when liquid refrigerant is accumulated in the electric compressor at the time of starting, the operation is started at a low speed to reduce the compression load of liquid compression, improving the reliability of the electric compressor and uncomfortable at the time of liquid compression. The electric compressor can be operated with a small compression noise. Further, when liquid refrigerant is not accumulated in the electric compressor at the time of start-up, the air-conditioner can be quickly air-conditioned because the engine is started at the target rotational speed designated by the air-conditioning control unit.
第１の発明に係る空調制御装置は、空調室内の温度を検出する温度検出手段Ａと、冷凍回路の電動圧縮機温度を検出する温度検出手段Ｂと、外気を検出する温度検出手段Ｃとを有し、空調装置を起動した時に前記温度検出手段Ａと前記温度検出手段Ｂまたは前記温度検出手段Ｃの温度差に基づいて電動圧縮機の始動回転数を決定する制御部を備えた構成としてある。 An air conditioning control device according to a first aspect of the present invention includes a temperature detecting means A for detecting the temperature in the air-conditioned room, a temperature detecting means B for detecting the electric compressor temperature of the refrigeration circuit, and a temperature detecting means C for detecting outside air. And having a control unit that determines the starting rotational speed of the electric compressor based on the temperature difference between the temperature detecting means A and the temperature detecting means B or the temperature detecting means C when the air conditioner is started. .
これによって、電動圧縮機内の冷媒の状態に応じて当該電動圧縮機を適切な回転数で駆動することができ、冷媒状態に応じて液圧縮の発生を防止しつつ、速やかに空調することができる。 Accordingly, the electric compressor can be driven at an appropriate rotation speed according to the state of the refrigerant in the electric compressor, and air conditioning can be performed quickly while preventing the occurrence of liquid compression according to the refrigerant state. .
第２の発明に係る空調制御装置は、温度検出手段Ｂが温度検出手段Ａまたは温度検出手段Ｃより高い場合は空調制御部から指示される目標回転数Ｎｔで電動圧縮機を始動し、温度検出手段Ｂが温度検出手段Ａまたは温度検出手段Ｃより低い場合は空調制御部から指示される目標回転数Ｎｔより低い始動回転数Ｎｓで始動するように電動圧縮機の回転数を制御する構成としてある。 When the temperature detection means B is higher than the temperature detection means A or the temperature detection means C, the air conditioning control device according to the second invention starts the electric compressor at the target rotational speed Nt instructed by the air conditioning control section, and detects the temperature. When the means B is lower than the temperature detection means A or the temperature detection means C, the rotational speed of the electric compressor is controlled so as to start at a starting rotational speed Ns lower than the target rotational speed Nt instructed by the air conditioning control unit. .
これによって、温度検出手段Ｂが温度検出手段Ａまたは温度検出手段Ｃより高い場合は電動圧縮機に液冷媒が溜まっていないので、空調制御部から指示された目標回転数Ｎｔで始動することにより、液圧縮の発生を防止しつつ、速やかに空調することができる。また、温度検出手段Ｂが温度検出手段Ａまたは温度検出手段Ｃより低い場合は電動圧縮機に多量の液冷媒が溜まっている状態なので、空調制御部から指示された目標回転数Ｎｔより低い始動回転数Ｎｓで始動するので、液圧縮の負荷を軽減することができる。 Thereby, when the temperature detection means B is higher than the temperature detection means A or the temperature detection means C, since the liquid refrigerant is not accumulated in the electric compressor, by starting at the target rotational speed Nt instructed from the air conditioning control unit, Air conditioning can be performed quickly while preventing the occurrence of liquid compression. Further, when the temperature detecting means B is lower than the temperature detecting means A or C, since a large amount of liquid refrigerant is accumulated in the electric compressor, the starting rotational speed lower than the target rotational speed Nt instructed from the air conditioning control unit. Since it starts with several Ns, the liquid compression load can be reduced.
第３の発明に係る空調制御装置は、空調室内の温度を検出する温度検出手段Ａを冷凍回路の蒸発器の周辺温度検出手段とし、空調装置の蒸発器に装備されている凍結防止センサで兼用する構成としてある。 In the air conditioning control device according to the third aspect of the invention, the temperature detecting means A for detecting the temperature in the air-conditioned room is used as the ambient temperature detecting means for the evaporator of the refrigeration circuit, and is also used as an antifreeze sensor provided in the evaporator of the air conditioning apparatus. It is as composition to do.
これによって、冷凍回路には凍結防止センサが通常装備されているので、別に温度検出手段Ａをつける必要がなくコストアップを抑制することができる。 As a result, since the refrigeration circuit is normally equipped with a freeze prevention sensor, it is not necessary to attach the temperature detection means A separately, and the cost increase can be suppressed.
第４の発明に係る空調制御装置は、電動圧縮機は圧縮部とこれを駆動するモータ部及びモータ部を駆動するインバータを有し、前記インバータを圧縮部に吸引される冷凍回路からの冷媒で冷却される位置に設けて構成するとともに、インバータは当該インバータの温度を検出する温度センサを具備し、前記インバータの温度を検出するインバータ温度センサで温度検出手段Ｂを兼用した構成としてある。 In an air conditioning control device according to a fourth aspect of the present invention, the electric compressor has a compression unit, a motor unit that drives the compression unit, and an inverter that drives the motor unit, and the inverter is a refrigerant from a refrigeration circuit that is sucked into the compression unit. The inverter is provided at a position to be cooled, and the inverter includes a temperature sensor that detects the temperature of the inverter, and the inverter temperature sensor that detects the temperature of the inverter also serves as the temperature detection means B.
これによって、電動圧縮機内部に溜まっている液冷媒近傍の温度をインバータ温度センサが検出するので、より液冷媒の温度に近くなって液圧縮を確実に防止することができる。また、別に電動圧縮機内部の温度を検出するセンサを付ける必要がなくコストアップを抑制することができる。 As a result, the inverter temperature sensor detects the temperature in the vicinity of the liquid refrigerant accumulated in the electric compressor, so that it is closer to the temperature of the liquid refrigerant and liquid compression can be reliably prevented. Moreover, it is not necessary to attach a sensor for detecting the temperature inside the electric compressor, and the cost increase can be suppressed.
第５の発明に係る空調制御装置は、外気温度を検出する温度検出手段Ｃを冷凍回路の凝縮器の周辺温度検出手段とし、空調装置の凝縮器近傍に装備されている外気温度センサで兼用する構成としてある。 In the air conditioning control device according to the fifth aspect of the invention, the temperature detecting means C for detecting the outside air temperature is used as the ambient temperature detecting means for the condenser of the refrigeration circuit, and the outside air temperature sensor provided near the condenser of the air conditioning apparatus is also used. As a configuration.
これによって、冷凍回路には外気センサが通常装備されているので、別に温度検出手段Ａをつける必要がなくコストアップを抑制することができる。 As a result, the refrigeration circuit is normally equipped with an outside air sensor, so that it is not necessary to attach the temperature detecting means A separately, and an increase in cost can be suppressed.
第６の発明に係る空調制御装置は、空調装置を制御する空調制御部を有し、この空調制御部の始動信号と温度検出手段Ａ及び温度検出手段Ｃの温度信号を前記空調制御部の通信線を介してインバータに入力し、前記インバータ単独で始動時の回転数を演算し指示することが出来る電動圧縮機を搭載した構成としてある。 An air conditioning control device according to a sixth aspect of the present invention has an air conditioning control unit that controls the air conditioning device, and the start signal of the air conditioning control unit and the temperature signals of the temperature detecting means A and the temperature detecting means C are communicated by the air conditioning control unit. An electric compressor that can be input to an inverter via a line and can calculate and instruct the rotation speed at the time of start-up by the inverter alone is mounted.
これによって、空調制御部から独立して、液圧縮を防止する制御機能を電動圧縮機自体が持つので、他の色々な空調装置に搭載されても、確実に液圧縮を防止し電動圧縮機を保護できる。 As a result, the electric compressor itself has a control function for preventing liquid compression independently from the air conditioning control unit. Therefore, even when installed in various other air conditioners, the electric compressor can be reliably prevented. Can protect.
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）
本発明の空調制御装置の第１実施形態について図１〜２を用いて説明する。空調制御装置は、車両（自動車）用の冷凍回路に適用されるものである。この空調制御装置は、図１に示すように、空調制御部１０内に設けた制御部１と、電動圧縮機１００及び空調室内の温度検出手段Ａと、電動圧縮機１００の温度検出手段Ｂ（図２参照）と、外気を検出する温度検出手段Ｃとから成る。
(Embodiment 1)
1st Embodiment of the air-conditioning control apparatus of this invention is described using FIGS. The air conditioning control device is applied to a refrigeration circuit for a vehicle (automobile). As shown in FIG. 1, the air conditioning control device includes a control unit 1 provided in an air conditioning control unit 10, a temperature detection means A in the electric compressor 100 and the air conditioning chamber, and a temperature detection means B ( 2) and temperature detecting means C for detecting outside air.
電動圧縮機１００で圧縮された高温高圧のガス冷媒は配管を通って凝縮器２で凝縮されて液冷媒となり、膨張弁３で減圧されて低温低圧となった冷媒は蒸発器４で空調室内の空気と熱交換されて蒸発し電動圧縮機１００へ戻る。蒸発器４で室内の空気を冷却することで快適な空調を得ることが出来る。凝縮器２の下流にはエンジン（図示しない）或いは電気モータ（図示しない）などの駆動源を冷却する放熱器５と送風機６が設けられ、凝縮器２にも送風して熱交換している。 The high-temperature and high-pressure gas refrigerant compressed by the electric compressor 100 is condensed by the condenser 2 through the pipe to become liquid refrigerant, and the refrigerant that has been depressurized by the expansion valve 3 to become low-temperature and low-pressure is inside the air conditioning chamber by the evaporator 4. Heat exchanges with air evaporates and returns to the electric compressor 100. Comfortable air conditioning can be obtained by cooling the indoor air with the evaporator 4. A radiator 5 and a blower 6 for cooling a drive source such as an engine (not shown) or an electric motor (not shown) are provided downstream of the condenser 2, and heat is also exchanged by blowing air to the condenser 2.
電動圧縮機１００は、図２に示すように、コンプケース１０１、リアカバー１０２、インバータケース１０３によって密閉容器として形成される。コンプケース１０１内にモータ部Ｘ及び圧縮部Ｙが収容され、インバータケース１０３内にインバータ１０４が収容されたものである。 As shown in FIG. 2, the electric compressor 100 is formed as a sealed container by a comp case 101, a rear cover 102, and an inverter case 103. The motor part X and the compression part Y are accommodated in the comp case 101, and the inverter 104 is accommodated in the inverter case 103.
モータ部Ｘは交流３相モータであり、ロータ１０５とステータ１０６で構成されている。ロータ１０５の回転軸１０７はスライドブッシュ１０８とベアリング１０９を介して圧縮部Ｙを構成する可動スクロール１１０に接続されている。そしてモータ部Ｘはインバータ１０４から出力される電力（電流）を受けて駆動する。 The motor unit X is an AC three-phase motor, and includes a rotor 105 and a stator 106. A rotating shaft 107 of the rotor 105 is connected to a movable scroll 110 constituting the compression unit Y via a slide bush 108 and a bearing 109. The motor unit X is driven by receiving electric power (current) output from the inverter 104.
圧縮部Ｙは上記モータ部Ｘの駆動によって作動し、コンプケース１０１に開けられた吸入ポート１１１から冷凍回路中の低温低圧のガス冷媒を吸い込み、吸入通路１１２を通っ
て固定スクロール１１３と可動スクロール１１０とで構成される圧縮室１１４でガス冷媒を圧縮して高温高圧ガス冷媒にする。高温高圧ガス冷媒は吐出弁１１５を押し上げて吐出され、高圧通路１１６を通ってコンプケース１０１内の高圧空間に流入しリアカバー１０２に設けられている吐出ポート１１７から冷凍回路中へ吐き出される。
The compression unit Y operates by driving the motor unit X, sucks low-temperature and low-pressure gas refrigerant in the refrigeration circuit from the suction port 111 opened in the comp case 101, passes through the suction passage 112, and the fixed scroll 113 and the movable scroll 110. The gas refrigerant is compressed into a high-temperature and high-pressure gas refrigerant in a compression chamber 114 constituted by: The high-temperature high-pressure gas refrigerant is discharged by pushing up the discharge valve 115, flows into the high-pressure space in the comp case 101 through the high-pressure passage 116, and is discharged from the discharge port 117 provided in the rear cover 102 into the refrigeration circuit.
インバータ１０４は、周知の直流−交流変換装置であり、図示しないバッテリからの直流電流を交流電流に変換すると共に、内部に設けられたスイッチング素子のＯＮ−ＯＦＦによってモータ部Ｘへの出力電流を可変する。スイッチング素子の入力側はバッテリおよび空調制御部１０に接続され、出力側はモータ部Ｘに接続されている。そして、インバータケース１０３は冷媒が吸入される吸入通路１１２に面して固定され、当該インバータケース１０３に取り付けた前記インバータ１０４はこの吸入通路１１２を通過する冷媒によって冷却されるように構成してある。 The inverter 104 is a well-known DC-AC converter, converts a DC current from a battery (not shown) into an AC current, and changes the output current to the motor unit X by ON / OFF of a switching element provided therein. To do. The input side of the switching element is connected to the battery and the air conditioning control unit 10, and the output side is connected to the motor unit X. The inverter case 103 is fixed so as to face the suction passage 112 through which refrigerant is sucked, and the inverter 104 attached to the inverter case 103 is cooled by the refrigerant passing through the suction passage 112. .
通常、空調制御装置は、空調装置起動信号や冷房のための環境条件信号等が入力され、これらの信号に基づいて電動圧縮機の目標回転数Ｎｔを決定してインバータ１０４の出力電流を調整し、モータ部Ｘの回転数を制御するものである。
空調制御部１０内の制御部１は、空調装置を起動した時に温度検出手段Ｂと温度検出手段Ａまたは温度検出手段Ｃとの温度差に基づいて電動圧縮機の始動回転数を決定するようにしたものである。以下図３を用いて説明する。
Normally, the air conditioner control device receives an air conditioner start signal, an environmental condition signal for cooling, etc., and based on these signals, determines the target rotational speed Nt of the electric compressor and adjusts the output current of the inverter 104. The number of rotations of the motor unit X is controlled.
The control unit 1 in the air conditioning control unit 10 determines the starting rotational speed of the electric compressor based on the temperature difference between the temperature detection unit B and the temperature detection unit A or the temperature detection unit C when the air conditioner is started. It is a thing. This will be described below with reference to FIG.
夏場に車両を炎天下駐車している場合、車室内は日射が当たって暑くなる一方、電動圧縮機は車両のエンジンルームに搭載されているので日陰にあるため車室内や外気より温度が低い状態で長時間放置されている。冷媒は温度の低い電動圧縮機内に凝縮し液冷媒となって満液状態となっている。また、車室内温度が高くなっているので、早く車室内を冷やすため電動圧縮機の目標回転数Ｎｔは高くなる。 When the vehicle is parked under hot weather in the summer, the interior of the vehicle becomes hot due to sunlight, while the electric compressor is installed in the engine room of the vehicle, so it is in the shade, so the temperature is lower than the interior of the vehicle or outside. It has been left for a long time. The refrigerant is condensed in the electric compressor having a low temperature to become a liquid refrigerant and is in a full liquid state. Further, since the passenger compartment temperature is high, the target rotational speed Nt of the electric compressor is increased in order to cool the passenger compartment quickly.
以上のように、温度検出手段Ｂが温度検出手段Ａまたは温度検出手段Ｃより低くなる場合は液冷媒が電動圧縮機内に溜まっているので、制御部１は空調制御部１０から指示される目標回転数Ｎｔより低い始動回転数Ｎｓで電動圧縮機を始動する。 As described above, when the temperature detection means B is lower than the temperature detection means A or the temperature detection means C, the liquid refrigerant is accumulated in the electric compressor, so that the control unit 1 performs the target rotation commanded from the air conditioning control unit 10. The electric compressor is started at a starting rotational speed Ns lower than the number Nt.
これによって、液圧縮の負荷を軽減することができ、液圧縮による不快な音の発生を抑制することができる。 Thereby, the load of liquid compression can be reduced, and generation | occurrence | production of the unpleasant sound by liquid compression can be suppressed.
また、冬場の走行時に電動圧縮機を始動する場合には放熱器５の放熱により、エンジンルーム内の電動圧縮機１００の周囲温度は外気温度より高くなり、また車室内より外気温度が低くなるので、液冷媒は凝縮器に溜まる。そういう場合には、温度検出手段Ｂが温度検出手段Ａまたは温度検出手段Ｃより高くなるので、制御部１は空調制御部１０から指示される目標回転数Ｎｔで電動圧縮機を始動する。 In addition, when starting the electric compressor during traveling in winter, the ambient temperature of the electric compressor 100 in the engine room is higher than the outside air temperature due to the heat radiation of the radiator 5, and the outside air temperature is lower than that in the passenger compartment. Liquid refrigerant accumulates in the condenser. In such a case, since the temperature detection means B becomes higher than the temperature detection means A or the temperature detection means C, the control unit 1 starts the electric compressor at the target rotational speed Nt instructed from the air conditioning control unit 10.
以上のように、温度検出手段Ｂが温度検出手段Ａ或いは温度検出手段Ｃより高い場合は電動圧縮機に液冷媒が溜まっていないので、空調制御部１０から指示された目標回転数Ｎｔで始動することにより、液圧縮の発生を防止しつつ、速やかに空調することができる。 As described above, when the temperature detection unit B is higher than the temperature detection unit A or the temperature detection unit C, no liquid refrigerant is accumulated in the electric compressor, so the engine is started at the target rotational speed Nt instructed from the air conditioning control unit 10. Thus, it is possible to quickly air-condition while preventing the occurrence of liquid compression.
（実施の形態２）
次に図４は本発明の第２の実施形態の空調制御装置を適用した場合の概略空調システム図である。
(Embodiment 2)
Next, FIG. 4 is a schematic air conditioning system diagram when the air conditioning control device of the second embodiment of the present invention is applied.
空調制御装置は、図４に示すように空調室内の温度を検出する温度検出手段Ａを冷凍回路の蒸発器４の周辺温度検出手段とし、蒸発器４に装備されている凍結防止センサ７で兼用したものである。 As shown in FIG. 4, the air-conditioning control device uses temperature detection means A for detecting the temperature in the air-conditioned room as ambient temperature detection means for the evaporator 4 of the refrigeration circuit, and is also used as the antifreeze sensor 7 provided in the evaporator 4. It is a thing.
これによって、冷凍回路には凍結防止センサ７が通常付いているので、別に温度検出手段Ａをつける必要がなくコストアップを抑制することができる。 As a result, the freezing prevention sensor 7 is usually attached to the refrigeration circuit, so that it is not necessary to attach the temperature detecting means A separately, and the cost increase can be suppressed.
（実施の形態３）
次に図５は本発明の第３の実施形態の電動圧縮機の断面図である。
(Embodiment 3)
Next, FIG. 5 is a cross-sectional view of an electric compressor according to a third embodiment of the present invention.
この実施の形態における電動圧縮機１００は図５に示すようにインバータ１０４に当該インバータ１０４の温度を検出する温度センサ８を備えており、温度検出手段Ｂをこのインバータ１０４の温度を検出するインバータ温度センサ８で兼用した構成としてある。 As shown in FIG. 5, the electric compressor 100 in this embodiment is provided with a temperature sensor 8 that detects the temperature of the inverter 104 in the inverter 104, and the temperature detection means B uses the inverter temperature that detects the temperature of the inverter 104. The sensor 8 is also used as a configuration.
これによって、電動圧縮機１００内部に溜まっている液冷媒近傍の温度をインバータ温度センサ８が検出するので、より液冷媒の温度を正確に検出することになり、液圧縮を確実に防止することができる。また、別に電動圧縮機内部の温度を検出する温度センサを付ける必要がなくコストアップとはならない。 Thus, since the inverter temperature sensor 8 detects the temperature in the vicinity of the liquid refrigerant accumulated in the electric compressor 100, the temperature of the liquid refrigerant is more accurately detected, and liquid compression can be reliably prevented. it can. In addition, there is no need to attach a temperature sensor for detecting the temperature inside the electric compressor, and the cost is not increased.
（実施の形態４）
次に図６は本発明の第４の実施形態の空調制御装置を適用した場合の概略空調システム図である。
(Embodiment 4)
Next, FIG. 6 is a schematic air conditioning system diagram when the air conditioning control device of the fourth embodiment of the present invention is applied.
本発明の空調制御装置は、外気温度を検出する温度検出手段Ｃを冷凍回路の凝縮器の周辺温度検出手段とし、空調装置の凝縮器２近傍に装備されている外気温度センサ９で兼用する構成としてある。 The air-conditioning control apparatus of the present invention uses the temperature detection means C for detecting the outside air temperature as the ambient temperature detection means for the condenser of the refrigeration circuit, and is also used as the outside air temperature sensor 9 provided near the condenser 2 of the air-conditioning apparatus. It is as.
これによって、冷凍回路には外気センサ９が通常装備されているので、別に温度検出手段Ａをつける必要がなくコストアップとはならない。 As a result, the refrigeration circuit is normally equipped with the outside air sensor 9, so that it is not necessary to attach the temperature detecting means A separately, and the cost is not increased.
（実施の形態５）
次に図７は本発明の第５の実施形態の電動圧縮機及び空調制御装置の概略構成図である。
(Embodiment 5)
Next, FIG. 7 is a schematic configuration diagram of an electric compressor and an air conditioning control device according to a fifth embodiment of the present invention.
空調制御部１０と電動圧縮機１００とは、空調制御部１０から電力（電流）を供給する電力線９ａ及び空調制御部１０と電動圧縮機１００間で回転数信号や温度信号を通信する通信線９ｂで接続し、電動圧縮機１００のインバータ１０４に制御部１を組み込んだ構成としてある。すなわち、空調制御部１０からの空調制御装置の始動信号と温度検出手段Ａの温度信号を空調制御部１０からの通信線９ａを介して制御部１を含むインバータ１０４に入力し、インバータ１０４単独で始動時の電動圧縮機１００の回転数を演算し指示することが出来るインバータ回路にしたものである。 The air conditioning control unit 10 and the electric compressor 100 are a power line 9 a that supplies electric power (current) from the air conditioning control unit 10, and a communication line 9 b that communicates a rotation speed signal and a temperature signal between the air conditioning control unit 10 and the electric compressor 100. And the control unit 1 is incorporated in the inverter 104 of the electric compressor 100. That is, the start signal of the air conditioning control device from the air conditioning control unit 10 and the temperature signal of the temperature detection means A are input to the inverter 104 including the control unit 1 via the communication line 9a from the air conditioning control unit 10, and the inverter 104 alone This is an inverter circuit that can calculate and indicate the number of rotations of the electric compressor 100 at the time of starting.
これによって、空調制御装置から独立して、液圧縮を防止する制御機能を電動圧縮機１００自体に持足すことができ、他の色々な空調装置に搭載されても、確実に液圧縮を防止し電動圧縮機１００の信頼性を向上することができる。 As a result, the electric compressor 100 itself can be provided with a control function for preventing liquid compression independently from the air conditioning control device, and reliably prevents liquid compression even when mounted on various other air conditioning devices. The reliability of the electric compressor 100 can be improved.
なお、上記各実施の形態１〜５において、その制御部１は空調制御部１０内に組み込んである場合で説明したが、制御部１と空調制御部１０は別々に構成したものであっても良いものである。 In addition, in each said Embodiment 1-5, although the control part 1 demonstrated the case where it integrated in the air-conditioning control part 10, the control part 1 and the air-conditioning control part 10 may be comprised separately. It ’s good.
本発明の空調制御装置は、冷媒状態に応じて液圧縮の発生を防止しつつ、速やかに空調することができ、特に車両用空調装置に好適である。 The air-conditioning control apparatus of the present invention can quickly air-condition while preventing the occurrence of liquid compression according to the refrigerant state, and is particularly suitable for a vehicle air-conditioning apparatus.
１ 制御部
Ａ 空調室内の温度検出手段
Ｂ 電動圧縮機の温度検出手段
Ｃ 外気の温度検出手段
７ 凍結防止センサ
８ 温度センサ
９ 外気温度センサ
９ａ 電力線
９ｂ 通信線通信線
１０ 空調制御部
１００ 電動圧縮機
Ｘ モータ部
Ｙ 圧縮部
DESCRIPTION OF SYMBOLS 1 Control part A Temperature detection means in an air-conditioning room B Temperature detection means of an electric compressor C Outside air temperature detection means 7 Freezing prevention sensor 8 Temperature sensor 9 Outside air temperature sensor 9a Power line 9b Communication line communication line 10 Air conditioning control part 100 Electric compressor X Motor part Y Compression part
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| JP2010193437A JP2012052683A (en) | 2010-08-31 | 2010-08-31 | Air conditioning control device |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2010193437A JP2012052683A (en) | 2010-08-31 | 2010-08-31 | Air conditioning control device |
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| JP2012052683A true JP2012052683A (en) | 2012-03-15 |
| JP2012052683A5 JP2012052683A5 (en) | 2013-09-12 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000291557A (en) * | 1999-04-07 | 2000-10-17 | Sanden Corp | Electric compressor |
| JP2000337682A (en) * | 1999-05-25 | 2000-12-08 | Sharp Corp | Air conditioner |
| JP2001027455A (en) * | 1999-05-13 | 2001-01-30 | Denso Corp | Heat pump air conditioner |
| JP2002340423A (en) * | 2001-05-16 | 2002-11-27 | Sanden Corp | Air conditioning apparatus for vehicle |
| JP2003326958A (en) * | 2002-05-15 | 2003-11-19 | Suzuki Motor Corp | Air conditioner |
| JP2005344971A (en) * | 2004-06-01 | 2005-12-15 | Corona Corp | Air conditioner |
| JP2007092636A (en) * | 2005-09-28 | 2007-04-12 | Mitsubishi Heavy Ind Ltd | Control device for electric compressor |
| JP2009204163A (en) * | 2008-02-26 | 2009-09-10 | Mitsubishi Heavy Ind Ltd | Refrigerating device for ground transportation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000291557A (en) * | 1999-04-07 | 2000-10-17 | Sanden Corp | Electric compressor |
| JP2001027455A (en) * | 1999-05-13 | 2001-01-30 | Denso Corp | Heat pump air conditioner |
| JP2000337682A (en) * | 1999-05-25 | 2000-12-08 | Sharp Corp | Air conditioner |
| JP2002340423A (en) * | 2001-05-16 | 2002-11-27 | Sanden Corp | Air conditioning apparatus for vehicle |
| JP2003326958A (en) * | 2002-05-15 | 2003-11-19 | Suzuki Motor Corp | Air conditioner |
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| JP2007092636A (en) * | 2005-09-28 | 2007-04-12 | Mitsubishi Heavy Ind Ltd | Control device for electric compressor |
| JP2009204163A (en) * | 2008-02-26 | 2009-09-10 | Mitsubishi Heavy Ind Ltd | Refrigerating device for ground transportation |
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