JPS6357483U

JPS6357483U -

Info

Publication number: JPS6357483U
Application number: JP15167586U
Authority: JP
Priority date: 1986-10-01
Filing date: 1986-10-01
Publication date: 1988-04-16

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による冷凍回路図
、第２図は第１図に示す冷凍回路を備えた冷凍装
置の制御回路図、第３図は第２図に示す制御回路
を備えた冷凍装置の冷凍能力特性比較線図、第４
図、第５図は従来の冷凍装置の冷凍回路図、第６
図は第４図に示す冷凍回路を有する冷凍装置の制
御回路図である。図において、１は圧縮機、２は凝縮器、３は冷
却装置、４，４ａは冷媒用電磁弁、５，５ａは絞
り装置、６，６ａは蒸発器、１９，２０はそれぞ
れ第１、第２の分岐回路、２１は可変速送風機、
１３，１５はそれぞれ第１、第２のタイムスイツ
チである。なお、各図中、同一符号は同一、また
は相当部分を示す。 Fig. 1 is a refrigeration circuit diagram according to an embodiment of this invention, Fig. 2 is a control circuit diagram of a refrigeration system equipped with the refrigeration circuit shown in Fig. 1, and Fig. 3 is a control circuit diagram of a refrigeration system equipped with the refrigeration circuit shown in Fig. 2. Refrigeration capacity characteristic comparison diagram of refrigeration equipment, Part 4
Figure 5 is a refrigeration circuit diagram of a conventional refrigeration system, and Figure 6 is a refrigeration circuit diagram of a conventional refrigeration system.
This figure is a control circuit diagram of a refrigeration system having the refrigeration circuit shown in FIG. 4. In the figure, 1 is a compressor, 2 is a condenser, 3 is a cooling device, 4, 4a are refrigerant electromagnetic valves, 5, 5a are throttle devices, 6, 6a are evaporators, 19, 20 are first and second 2 branch circuit, 21 variable speed blower,
13 and 15 are first and second time switches, respectively. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A compressor, a condenser, and a cooling device are sequentially connected to form a refrigeration circuit, and the refrigeration circuit is branched in the cooling device, and each includes a refrigerant liquid solenoid valve,
The first and second diaphragms are connected in sequence to a throttle device and an evaporator.
A branch circuit comprising a variable speed blower for blowing air cooled by the evaporator, and first and second time switches, and a defrosting start signal generated from the first time switch. , closing the refrigerant liquid electromagnetic valve of the first branch circuit and increasing the speed of the variable speed blower;
The first time switch is energized, and the first time switch is activated by the defrosting release signal generated from the first time switch.
At the same time as or immediately before the refrigerant liquid solenoid valve of the branch circuit opens, a defrosting start signal generated from the second time switch closes the refrigerant liquid solenoid valve of the second branch circuit and the variable A refrigeration device characterized by comprising a control circuit that maintains a blower in an accelerated state.