JPS6093843U

JPS6093843U - air conditioner

Info

Publication number: JPS6093843U
Application number: JP18603783U
Authority: JP
Inventors: 堀川　昭; 紀雄鍵村
Original assignee: ダイキン工業株式会社
Priority date: 1983-12-01
Filing date: 1983-12-01
Publication date: 1985-06-26
Also published as: JPH0236020Y2

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図は本考案の実施例の模式断面図、第２図は同じ（
制御系統を示すブロック線図、第３図は同じく制御系統
の電子回路図、第４図は同じく供給風量と静圧との関係
を示す関係図、第５図は同じ（周波数設定信号と制御静
圧との関係を示す関係図、第６図は同じく周波数設定信
号と出力周波数との関係を示す関係図、第７，８図は周
波数設定信号の時間変化を示す図である。１・・・モータ、２・・・ファン、３・・・利用側熱交
換器、７・・・室、１０・・・周波数変換器、１３・・
・制御器、２９・・・下限リミッタ回路、Ｒ２８・・・
第１抵抗、Ｒ４９・・・第２抵抗、Ｄ４．Ｄ５・・・ダ
イオード。Figure 1 is a schematic sectional view of an embodiment of the present invention, and Figure 2 is the same (
Figure 3 is a block diagram showing the control system. Figure 3 is an electronic circuit diagram of the control system. Figure 4 is a relationship diagram showing the relationship between supply air volume and static pressure. Figure 5 is the same (frequency setting signal and control static FIG. 6 is a relationship diagram showing the relationship between the frequency setting signal and the output frequency, and FIGS. 7 and 8 are diagrams showing the time change of the frequency setting signal. 1... Motor, 2...Fan, 3...Using side heat exchanger, 7...Room, 10...Frequency converter, 13...
・Controller, 29...Lower limiter circuit, R28...
First resistor, R49...Second resistor, D4. D5...Diode.

Claims

[Scope of utility model registration request]

A user side that serves as an evaporator for cooling, which is equipped with a fan 2 that is connected to a compressor, a heat source side heat exchanger that serves as a condenser during cooling, an expansion mechanism, and a frequency converter 10 and is driven by a motor 1 whose rotation speed can be controlled. In an air conditioner equipped with a heat exchanger 3, a controller 13 for controlling the output frequency of the frequency converter 10 is provided, and a first resistor R48 is connected to the power source;
Lower limit limiter circuit 29 consisting of a series circuit in which a parallel circuit of a second resistor R49 and a capacitor C1 are connected in series.
Further, a pair of diodes D with cathodes facing each other connect the connection point between the first resistor R48 of the lower limiter circuit 29 and the parallel circuit and the output side of the controller 13.
4. D, and these diodes D4. D
, is connected to the frequency converter 10.