JPS6238558U

JPS6238558U -

Info

Publication number: JPS6238558U
Application number: JP13000485U
Authority: JP
Priority date: 1985-08-28
Filing date: 1985-08-28
Publication date: 1987-03-07

Description

[Brief explanation of the drawing]

第１図は本考案の分離形空気調和機の一実施例
を示す冷凍サイクル図、第２図は第１図の温度セ
ンサの感温部取付個所を説明する圧縮機の外観図
、第３図は第１図の制御器の冷房運転時における
諸機能を示すフローチヤート、第４図は圧縮機内
の冷凍機油量に応じて生じる吐出管温度とケース
底部温度との温度差と、運転負荷との関係特性図
、第５図は第１図の冷凍サイクルに基づいて行わ
れる低負荷時の冷房運転と冷凍機油回収運転との
繰り返し運転における吐出管温度及びケース底部
温度の変化特性図、第６図は従来の分離空気調和
機の冷凍サイクル図である。図中、１１は圧縮機、１３は室外熱交換器、１
４は室外ユニツト、１６は室内ユニツト、１８は
減圧器、１９は圧縮機吐出管、２０は圧縮機ケー
ス底部、２１は温度センサ、２２は制御器、２３
はバイパス路、２４は電磁弁である。 Figure 1 is a refrigeration cycle diagram showing an embodiment of the separate air conditioner of the present invention, Figure 2 is an external view of the compressor illustrating the mounting location of the temperature sensor of Figure 1, and Figure 3. is a flowchart showing the various functions of the controller in Figure 1 during cooling operation, and Figure 4 is a flow chart showing the temperature difference between the discharge pipe temperature and case bottom temperature that occurs depending on the amount of refrigerating machine oil in the compressor, and the operating load. A relational characteristic diagram, Figure 5 is a change characteristic diagram of the discharge pipe temperature and case bottom temperature during repeated operation of cooling operation at low load and refrigerating machine oil recovery operation based on the refrigeration cycle of Figure 1, and Figure 6. is a refrigeration cycle diagram of a conventional separated air conditioner. In the figure, 11 is a compressor, 13 is an outdoor heat exchanger, 1
4 is an outdoor unit, 16 is an indoor unit, 18 is a pressure reducer, 19 is a compressor discharge pipe, 20 is a bottom of the compressor case, 21 is a temperature sensor, 22 is a controller, 23
24 is a bypass path, and 24 is a solenoid valve.

Claims

[Scope of utility model registration request]

In a separate air conditioner consisting of an outdoor unit and an indoor unit, the outdoor unit is equipped with a temperature sensor that detects the temperature of the compressor discharge pipe and the bottom of the compressor case, and a low pressure A bypass path that allows hot gas to flow to the side refrigerant pipe, a solenoid valve that opens and closes the bypass path based on a control signal, and a solenoid valve that operates based on the difference between the discharge pipe temperature and the case bottom temperature detected by the temperature sensor during cooling operation. A separate air conditioner characterized by comprising a controller that sends a control signal.