JPWO2021192275A5 - - Google Patents
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- JPWO2021192275A5 JPWO2021192275A5 JP2022510374A JP2022510374A JPWO2021192275A5 JP WO2021192275 A5 JPWO2021192275 A5 JP WO2021192275A5 JP 2022510374 A JP2022510374 A JP 2022510374A JP 2022510374 A JP2022510374 A JP 2022510374A JP WO2021192275 A5 JPWO2021192275 A5 JP WO2021192275A5
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- JP
- Japan
- Prior art keywords
- refrigerant
- flow path
- outdoor unit
- connection end
- liquid reservoir
- 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.)
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- 239000003507 refrigerant Substances 0.000 claims 45
- 239000007788 liquid Substances 0.000 claims 14
- 238000005057 refrigeration Methods 0.000 claims 4
- 230000000630 rising effect Effects 0.000 claims 4
- 238000001514 detection method Methods 0.000 claims 3
- 239000007791 liquid phase Substances 0.000 claims 2
- 230000035515 penetration Effects 0.000 claims 1
Claims (10)
前記冷媒を圧縮する圧縮機と、前記圧縮機から吐出された前記冷媒を凝縮する凝縮器とを含み、かつ前記冷媒回路の一部を構成するメイン流路と、
前記凝縮器から流出した前記冷媒の一部を前記圧縮機の吸入口に導くバイパス流路とを備え、
前記バイパス流路は、前記冷媒回路に封入された前記冷媒の不足を検知する検知部を含み、
前記検知部は、
前記バイパス流路を流れる前記冷媒を加熱する加熱器と、
前記加熱器によって加熱される前の前記冷媒の温度を検出する第１温度センサと、
前記加熱器によって加熱された前記冷媒の温度を検出する第２温度センサと、
前記第１温度センサおよび前記第２温度センサが検出した温度を用いて、前記冷媒回路に封入された前記冷媒の不足を検知する制御装置とを含み、
前記メイン流路は、前記凝縮器よりも下流側に配置された第１流路を含み、
前記バイパス流路は、前記第１流路に接続された接続端部と、前記接続端部から上方に向かって延びている立ち上がり部とをさらに含み、
前記バイパス流路に流入する前記冷媒の流速がゼロペネトレーション流速となる場合の前記立ち上がり部の内径を基準内径とすると、前記内径は前記基準内径よりも大きい、室外機。 An outdoor unit of a refrigeration cycle device equipped with a refrigerant circuit through which refrigerant circulates.
A main flow path including a compressor for compressing the refrigerant and a condenser for condensing the refrigerant discharged from the compressor, and forming a part of the refrigerant circuit.
It is provided with a bypass flow path that guides a part of the refrigerant flowing out of the condenser to the suction port of the compressor.
The bypass flow path includes a detection unit for detecting a shortage of the refrigerant enclosed in the refrigerant circuit.
The detector is
A heater that heats the refrigerant flowing through the bypass flow path, and
A first temperature sensor that detects the temperature of the refrigerant before it is heated by the heater, and
A second temperature sensor that detects the temperature of the refrigerant heated by the heater, and
A control device for detecting a shortage of the refrigerant enclosed in the refrigerant circuit by using the temperature detected by the first temperature sensor and the second temperature sensor is included.
The main flow path includes a first flow path located downstream of the condenser.
The bypass flow path further includes a connection end portion connected to the first flow path and a rising portion extending upward from the connection end portion.
An outdoor unit in which the inner diameter is larger than the reference inner diameter, where the inner diameter of the rising portion is used as the reference inner diameter when the flow velocity of the refrigerant flowing into the bypass flow path becomes the zero penetration flow velocity .
前記接続端部は、前記液溜器に接続され、前記液溜器から前記バイパス流路に前記冷媒を導くように構成されている、請求項１に記載の室外機。 The first flow path includes a liquid reservoir for storing the liquid phase refrigerant, and includes a liquid reservoir.
The outdoor unit according to claim 1 , wherein the connection end is connected to the liquid reservoir and is configured to guide the refrigerant from the liquid reservoir to the bypass flow path .
前記液溜器の内部において、前記接続端部は、前記第１管部の端部よりも下方であって、前記第２管部の端部よりも上方に配置されている、請求項２に記載の室外機。 The first flow path further includes a first pipe portion for guiding the refrigerant from the condenser to the liquid reservoir, and a second pipe portion arranged on the downstream side of the liquid reservoir.
According to claim 2 , the connection end portion is arranged below the end portion of the first pipe portion and above the end portion of the second pipe portion inside the liquid reservoir. The listed outdoor unit.
前記接続端部は、前記バッフルプレートの前記上面よりも上方に配置されている、請求項２～４のいずれか１項に記載の室外機。 The liquid reservoir comprises a baffle plate having an upper surface and a lower surface and having through holes formed from the upper surface to the lower surface.
The outdoor unit according to any one of claims 2 to 4 , wherein the connection end is arranged above the upper surface of the baffle plate .
前記冷媒を圧縮する圧縮機と、前記圧縮機から吐出された前記冷媒を凝縮する凝縮器とを含み、かつ前記冷媒回路の一部を構成するメイン流路と、
前記凝縮器から流出した前記冷媒の一部を前記圧縮機の吸入口に導くバイパス流路とを備え、
前記バイパス流路は、前記冷媒回路に封入された前記冷媒の不足を検知する検知部を含み、
前記検知部は、
前記バイパス流路を流れる前記冷媒を加熱する加熱器と、
前記加熱器によって加熱される前の前記冷媒の温度を検出する第１温度センサと、
前記加熱器によって加熱された前記冷媒の温度を検出する第２温度センサと、
前記第１温度センサおよび前記第２温度センサが検出した温度を用いて、前記冷媒回路に封入された前記冷媒の不足を検知する制御装置とを含み、
前記メイン流路は、前記凝縮器よりも下流側に配置された第１流路を含み、
前記バイパス流路は、前記第１流路に接続された接続端部と、前記接続端部から上方に向かって延びている立ち上がり部とをさらに含み、
前記第１流路は、液相冷媒を貯留する液溜器を含み、
前記接続端部は、前記液溜器に接続され、前記液溜器から前記バイパス流路に前記冷媒を導くように構成されており、
前記液溜器は、上面および下面を有し、前記上面から前記下面に達する貫通孔が形成されたバッフルプレートを含み、
前記接続端部は、前記バッフルプレートの前記上面よりも上方に配置されている、室外機。 An outdoor unit of a refrigeration cycle device equipped with a refrigerant circuit through which refrigerant circulates.
A main flow path including a compressor for compressing the refrigerant and a condenser for condensing the refrigerant discharged from the compressor, and forming a part of the refrigerant circuit.
It is provided with a bypass flow path that guides a part of the refrigerant flowing out of the condenser to the suction port of the compressor.
The bypass flow path includes a detection unit for detecting a shortage of the refrigerant enclosed in the refrigerant circuit.
The detector is
A heater that heats the refrigerant flowing through the bypass flow path, and
A first temperature sensor that detects the temperature of the refrigerant before it is heated by the heater, and
A second temperature sensor that detects the temperature of the refrigerant heated by the heater, and
A control device for detecting a shortage of the refrigerant enclosed in the refrigerant circuit by using the temperature detected by the first temperature sensor and the second temperature sensor is included.
The main flow path includes a first flow path located downstream of the condenser.
The bypass flow path further includes a connection end portion connected to the first flow path and a rising portion extending upward from the connection end portion.
The first flow path includes a liquid reservoir for storing the liquid phase refrigerant, and includes a liquid reservoir.
The connection end is connected to the liquid reservoir and is configured to guide the refrigerant from the liquid reservoir to the bypass flow path.
The liquid reservoir comprises a baffle plate having an upper surface and a lower surface and having through holes formed from the upper surface to the lower surface.
The outdoor unit whose connection end is arranged above the upper surface of the baffle plate .
前記接続端部は、前記第４管部に接続されている、請求項１に記載の室外機。 The first flow path has a third pipe portion and a fourth pipe portion connected in parallel with the third pipe portion and arranged above the third pipe portion.
The outdoor unit according to claim 1, wherein the connection end is connected to the fourth pipe.
前記冷媒を圧縮する圧縮機と、前記圧縮機から吐出された前記冷媒を凝縮する凝縮器とを含み、かつ前記冷媒回路の一部を構成するメイン流路と、
前記凝縮器から流出した前記冷媒の一部を前記圧縮機の吸入口に導くバイパス流路とを備え、
前記バイパス流路は、前記冷媒回路に封入された前記冷媒の不足を検知する検知部を含み、
前記検知部は、
前記バイパス流路を流れる前記冷媒を加熱する加熱器と、
前記加熱器によって加熱される前の前記冷媒の温度を検出する第１温度センサと、
前記加熱器によって加熱された前記冷媒の温度を検出する第２温度センサと、
前記第１温度センサおよび前記第２温度センサが検出した温度を用いて、前記冷媒回路に封入された前記冷媒の不足を検知する制御装置とを含み、
前記メイン流路は、前記凝縮器よりも下流側に配置された第１流路を含み、
前記バイパス流路は、前記第１流路に接続された接続端部と、前記接続端部から上方に向かって延びている立ち上がり部とをさらに含み、
前記第１流路は、第３管部と、前記第３管部と並列に接続されておりかつ前記第３管部よりも上方に配置された第４管部とを有し、
前記接続端部は、前記第４管部に接続されている、室外機。 An outdoor unit of a refrigeration cycle device equipped with a refrigerant circuit through which refrigerant circulates.
A main flow path including a compressor for compressing the refrigerant and a condenser for condensing the refrigerant discharged from the compressor, and forming a part of the refrigerant circuit.
It is provided with a bypass flow path that guides a part of the refrigerant flowing out of the condenser to the suction port of the compressor.
The bypass flow path includes a detection unit that detects a shortage of the refrigerant enclosed in the refrigerant circuit.
The detector is
A heater that heats the refrigerant flowing through the bypass flow path, and
A first temperature sensor that detects the temperature of the refrigerant before it is heated by the heater, and
A second temperature sensor that detects the temperature of the refrigerant heated by the heater, and
A control device for detecting a shortage of the refrigerant enclosed in the refrigerant circuit by using the temperature detected by the first temperature sensor and the second temperature sensor is included.
The main flow path includes a first flow path located downstream of the condenser.
The bypass flow path further includes a connection end portion connected to the first flow path and a rising portion extending upward from the connection end portion.
The first flow path has a third pipe portion and a fourth pipe portion connected in parallel with the third pipe portion and arranged above the third pipe portion.
The connection end is an outdoor unit connected to the fourth pipe .
前記接続端部は前記第２部分と前記上下方向に連なっている、請求項７又は８に記載の室外機。 The fourth pipe portion has a first portion extending in the vertical direction and a second portion arranged on the downstream side of the first portion and extending in the vertical direction.
The outdoor unit according to claim 7 or 8 , wherein the connection end portion is connected to the second portion in the vertical direction.
前記室外機と接続された室内機とを備える、冷凍サイクル装置。 The outdoor unit according to any one of claims 1 to 9 , and the outdoor unit.
A refrigeration cycle device including the outdoor unit and an indoor unit connected to the outdoor unit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2020/014229 WO2021192275A1 (en) | 2020-03-27 | 2020-03-27 | Outdoor unit and refrigeration cycle device equipped with same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2021192275A1 JPWO2021192275A1 (en) | 2021-09-30 |
| JPWO2021192275A5 true JPWO2021192275A5 (en) | 2022-05-10 |
| JP7224533B2 JP7224533B2 (en) | 2023-02-17 |
Family
ID=77889985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022510374A Active JP7224533B2 (en) | 2020-03-27 | 2020-03-27 | Outdoor unit and refrigeration cycle device provided with the same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7224533B2 (en) |
| WO (1) | WO2021192275A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024009394A1 (en) * | 2022-07-05 | 2024-01-11 | 三菱電機株式会社 | Air conditioner and refrigerant leak detection method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63169461A (en) * | 1986-12-27 | 1988-07-13 | 三菱電機株式会社 | Air conditioner |
| JP3126420B2 (en) * | 1991-07-23 | 2001-01-22 | 東芝キヤリア株式会社 | Air conditioner |
| JPH05346271A (en) * | 1992-06-15 | 1993-12-27 | Toshiba Corp | Control device for refrigerant heating type air conditioner |
| JP2005282885A (en) * | 2004-03-29 | 2005-10-13 | Mitsubishi Heavy Ind Ltd | Air conditioner |
| JP5346271B2 (en) | 2009-11-17 | 2013-11-20 | 株式会社水道技術開発機構 | Branch pipe connection device |
| JP5582773B2 (en) * | 2009-12-10 | 2014-09-03 | 三菱重工業株式会社 | Air conditioner and refrigerant amount detection method for air conditioner |
| JP6888418B2 (en) * | 2017-05-23 | 2021-06-16 | ダイキン工業株式会社 | Heat source side unit and refrigeration equipment |
-
2020
- 2020-03-27 JP JP2022510374A patent/JP7224533B2/en active Active
- 2020-03-27 WO PCT/JP2020/014229 patent/WO2021192275A1/en active Application Filing
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