JPS60114598U - Air conditioner control device - Google Patents

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１区は従来の空気調和機の制御装置を示す図、第２図
はこの考案の一実施例を示す図である。 図において４はインバータ手段、５は圧縮機、６は過電
流検出抵抗、１５は過電流失速用の比較器、１６は制御
手段、１７．１８，１９．２０は基準信号発生手段を構
成する抵抗及び常開接点、２１．２２，２３，２４，２
５，２６は基準信号切換手段を構成するトランジスタ、
抵抗、リレー及びダイ１−ドである。なお、各図中同一
符号は同−又は相当部分を示す。The first section is a diagram showing a conventional air conditioner control device, and the second section is a diagram showing an embodiment of this invention. In the figure, 4 is an inverter means, 5 is a compressor, 6 is an overcurrent detection resistor, 15 is a comparator for overcurrent stall, 16 is a control means, and 17.18, 19.20 are resistors constituting a reference signal generation means. and normally open contacts, 21.22, 23, 24, 2
5 and 26 are transistors constituting a reference signal switching means;
These are resistors, relays and diodes. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）交流商用電源を直流電源に変換する整流手段、こ
の整流手段からの直流電源出力が入力され、制御信号に
基づいて変換された運転周波数による電力を圧縮機へ供
給するインバータ手段、このインバータ手段に入力され
る電流値を検知してこの電流値に応じた検知信号を出力
する電流値検出手段、第１基準信号及び第２基準信号の
２つの基準信号を選択的に発生する基準信号発生手段、
上記圧縮機が第１の運転状態のときに上記基準信号発生
手段から第１基準信号を発生させ、上記圧縮機が第２の
運転状態のときに上記基準信号発生手段から第２基準信
号を発生させる基準信号切換手段、上記電流値検出手段
の検知信号が第１人力に入力され、上記基準信号発生手
段の基準信号が第２人力に入力され、これら検知信号と
基準信萼とを比較して、検知信号が基準信号を越えた時
に出力信号を発生させる比較手段、この比較手段の出力
信号を受けて上記インバータ手段から出力される周波数
を低くさせる制御信号を上記インバータ手段に供給する
制御手段を備えた空気調和機の制御装置。(1) Rectifying means for converting AC commercial power into DC power; inverter means into which the DC power output from the rectifying means is input; and supplying power to the compressor at the operating frequency converted based on a control signal; this inverter; A current value detection means that detects a current value input to the means and outputs a detection signal according to the current value, and a reference signal generator that selectively generates two reference signals, a first reference signal and a second reference signal. means,
When the compressor is in a first operating state, the reference signal generating means generates a first reference signal, and when the compressor is in a second operating state, the reference signal generating means generates a second reference signal. The detection signal of the reference signal switching means and the current value detection means is inputted to the first human power, the reference signal of the reference signal generation means is inputted to the second human power, and these detection signals are compared with the reference signal. a comparison means for generating an output signal when the detection signal exceeds a reference signal; and a control means for receiving the output signal of the comparison means and supplying the inverter means with a control signal for lowering the frequency output from the inverter means. Air conditioner control device. （２）圧縮機の第１の運転状態は圧縮機の起動時から圧
縮機が所定の設定周波数により運転されるまでの運転状
態であり、第２の運転状態は圧縮機が所定の設定周波数
により運転された以降の　。 運転状態であり、基準信号発生手段からの第１基準信号
の値が第２基準信号の値より大きい値としたことを特徴
とする実用新案登録請求の範２　間第１項記載の空気調
和機の制御装置＝　　　　　　　　゛(2) The first operating state of the compressor is the operating state from when the compressor is started until the compressor is operated at a predetermined set frequency, and the second operating state is the operating state when the compressor is operated at a predetermined set frequency. After being driven. The air conditioner according to claim 2, wherein the air conditioner is in an operating state and the value of the first reference signal from the reference signal generating means is larger than the value of the second reference signal. Control device = ゛