JPS59174579U

JPS59174579U - Refrigerant heating type air conditioning equipment

Info

Publication number: JPS59174579U
Application number: JP6932583U
Authority: JP
Inventors: 千葉　光好
Original assignee: 株式会社東芝
Priority date: 1983-05-10
Filing date: 1983-05-10
Publication date: 1984-11-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来およびこの一実施例における冷凍サイクル
の構成図、第２図は従来における制御回路の構成図、第
３図はこの考案の一実施例における制御回路の構成図で
ある。１・・・圧縮機、２・・・四方弁、４・・・室外熱交換
器、７・・・室内熱交換器、１０・・・冷媒加熱器、１
１・・・冷媒電磁弁（電磁開閉弁）、２１・・・運転切
換スイッチ、２４・・・冷媒回収用タイマ、２５・・・
サイクルバランス用タイマ、３０・・・リレー。FIG. 1 is a block diagram of a conventional refrigeration cycle and this embodiment, FIG. 2 is a block diagram of a conventional control circuit, and FIG. 3 is a block diagram of a control circuit in an embodiment of this invention. DESCRIPTION OF SYMBOLS 1... Compressor, 2... Four-way valve, 4... Outdoor heat exchanger, 7... Indoor heat exchanger, 10... Refrigerant heater, 1
1... Refrigerant solenoid valve (electromagnetic on/off valve), 21... Operation selector switch, 24... Refrigerant recovery timer, 25...
Cycle balance timer, 30...relay.

Claims

[Scope of utility model registration request]

A compressor, a four-way valve, an outdoor heat exchanger, a pressure reducing device, an indoor heat exchanger, etc. are connected in sequence, and between the communicating portion of the pressure reducing device and indoor heat exchanger and the communicating portion of the four-way valve and the compressor suction port. A refrigerant heater and an electromagnetic on-off valve are connected in sequence to form a cooling cycle through the compressor, four-way valve, outdoor heat exchanger, pressure reducing device, and indoor heat exchanger during cooling operation, and a four-way air conditioner during heating operation. A refrigeration cycle that forms a heating cycle through a compressor, a four-way valve, an indoor heat exchanger, and a refrigerant heater through the switching operation of a valve and the opening operation of an electromagnetic on-off valve, an operation changeover switch, and a fixed time t1f, J and the above-mentioned compressor. a refrigerant recovery timer for driving the compressor and delaying the opening operation of the electromagnetic on-off valve for a predetermined time t, and delaying the driving of the compressor for a predetermined time t2 and delaying the operation of the refrigerant heater for a predetermined time t2 a cycle balance timer, and a relay that operates when the power is turned on or after the cooling operation ends, and stops once the heating operation is started,
The refrigerant recovery timer is connected to the power supply via the heating side contact of the operation changeover switch and the normally open contact of the relay in series, and the cycle balance timer is connected to the heating side contact of the operation changeover switch and the normally open contact of the relay. , and a refrigerant-heating type air-conditioning/heating system, characterized in that a time-limiting contact of a refrigerant recovery timer is connected to a power source through a series circuit, and a normally-closed contact of a relay is connected in parallel to the series circuit of the normally-open contact and the time-limiting contact. Device.