JPH03247945A - Compressor control method for air-conditioner - Google Patents

Compressor control method for air-conditioner

Info

Publication number
JPH03247945A
JPH03247945A JP2408988A JP40898890A JPH03247945A JP H03247945 A JPH03247945 A JP H03247945A JP 2408988 A JP2408988 A JP 2408988A JP 40898890 A JP40898890 A JP 40898890A JP H03247945 A JPH03247945 A JP H03247945A
Authority
JP
Japan
Prior art keywords
frequency
compressor
temperature
revolutions
increased
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2408988A
Other languages
Japanese (ja)
Inventor
Yutaka Yamada
豊 山田
Shigeru Muramatsu
繁 村松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2408988A priority Critical patent/JPH03247945A/en
Publication of JPH03247945A publication Critical patent/JPH03247945A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0253—Compressor control by controlling speed with variable speed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE:To prevent defective lubrication of the slide part of a compressor by a method wherein the temperature of a heat exchanger on the indoor side is detected, the number of revolutions is increased by a frequency converting part to control the number of revolutions after the lapse of a specified time starting from operation of a compressor protecting device on a condition that the number of revolutions is in a low speed area. CONSTITUTION:A temperature sensitive sensor 12 detects the temperature of hot air discharged from an indoor machine on a heating overload condition. When the temperature of hot air exceeds a set room temperature, a signal K for reduction of a frequency is outputted to a frequency control part 13, and even on and following this time, detection is effected at specified intervals to continue transmission. The frequency control part 13 to receive the signal transmits a command signal L for reduction of a frequency to a frequency converting part 14 to reduce the frequency to a lowermost value. When operation is further continued, the pressure of a heat exchanger 8 on the indoor side is increased, and at a point of time when the pressure exceeds a set value, a pressure switch 16 is operated, and an operation signal P is transmitted to the frequency control part 13 except the decrease of the pressure to a value lower than the set value. When a lowermost frequency is continued for a specified time, a frequency increase signal is transmitted from the frequency control part 13. As a result, the number of revolutions is increased, capacity of an oil pump is increased, and quantities of lubricating oil can be temporarily fed to a slide part in a high load state.

Description

【発明の詳細な説明】[Detailed description of the invention]

［０００１］ [0001]

【産業上の利用分野】[Industrial application field]

本発明は、空調負荷に応じて圧縮機の るようにしたヒートポンプ式空気調和樺［０００２］ ｊ御方法 ］機を構成する室内側熱交換器の温度を検＝換部により
、前記圧縮機の回転数が低速：するために設けられた圧
縮機保護器が動ｉの回転数を上昇させる空気調和機の圧
縮）回転数を周波数変換制御によって制御す（の圧縮機
制御方法に関するものである。 【従来の技術］ 図２ないし図４を参考に従来例の構成おている周波数変
換方式の圧縮機回転数制御電源の周波数を変換すること
により圧縮機は高速回転で早く設定室温に到達するよう
要求される能力を適当な回転数で供給する［０００３］ 図２において高速回転を行なう周波数力（なう周波数が
ＣＨ−ＤＨである。これにｚ　　　　　　ｚ 到達させることができ、最小の供給能力に設定室温を示
している。 ［０００４］ 図３に周波数変換方式の設定室温に対す周波数変換によ
る能力可変ができない通常：よび問題点を説明する。一
般に知られＪによる能力可変空気調和機は、圧縮機ｉの
回転数を変化させ、立上りの段階でにし、室内機で設定
された温度設定で ものである。 ：ＢＨ、設定室温Ａに見合う回転を行 ２よって要求する空調条件に、より早くよる空調状態が
得られる。なお、Ａは ′る圧縮機運転制御例を示す。ここで、＝の圧縮機の場
合において、室内温度のThe present invention detects and adjusts the temperature of an indoor heat exchanger constituting a heat pump type air conditioning machine in which the compressor is mounted according to the air conditioning load by a converter. This relates to a compressor control method in which the rotation speed of an air conditioner (compression) is controlled by frequency conversion control, in which a compressor protector provided to increase the rotation speed of the air conditioner has a low rotation speed. [Prior Art] Referring to FIGS. 2 to 4, the frequency conversion system of the conventional configuration is used to control the compressor rotation speed. By converting the frequency of the power supply, the compressor rotates at high speed and quickly reaches the set room temperature. Supplying the required capacity at an appropriate rotational speed [0003] In Fig. 2, the frequency force for high-speed rotation (the frequency is CH-DH) can be reached, and the minimum supply capacity can be reached. The set room temperature is shown. [0004] Fig. 3 explains the problem of the frequency conversion method in which the capacity cannot be varied by frequency conversion with respect to the set room temperature.The generally known variable capacity air conditioner by J The rotational speed of machine i is changed at the start-up stage, and the temperature setting is set on the indoor unit. :BH, the rotation speed corresponding to the set room temperature A is set faster to meet the air conditioning conditions required by line 2. In addition, A shows an example of compressor operation control.Here, in the case of the compressor with

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

【図１】 本発明の一実施例における空気調子［[Figure 1] Air condition in one embodiment of the present invention [

【図２］ 従来からある周波数変換制御による 【図３】 同空気調和機の制御特性図[Figure 2] Based on conventional frequency conversion control [Figure 3] Control characteristics diagram of the air conditioner

【図４】 同空気調和機の圧縮機の断面図[Figure 4] Cross-sectional view of the compressor of the air conditioner

【符号の説明】[Explanation of symbols]

８　室内側熱交換器 １０　圧縮機 １２　感温センサ １３　周波数制御部 １４　周波数変換部 ］機のブロック図 ）空気調和機の制御特性図 圧力スイッチ （圧縮機保護器） 8 Indoor heat exchanger 10 Compressor 12 Temperature sensor 13 Frequency control section 14 Frequency conversion section ] Machine block diagram ) Control characteristics diagram of air conditioner pressure switch (compressor protector)

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】ヒートポンプ式空気調和機を構成する室内
側熱交換器の温度を検出し圧縮機の回転数を制御する周
波数変換部により、前記圧縮機の回転数が低速域にある
条件のもとで前記圧縮機を保護するために設けられた圧
縮機保護器が動作したときから一定時間後に前記圧縮機
の回転数を上昇させる空気調和機の圧縮機制御方法。[Claim 1] A frequency converter that detects the temperature of an indoor heat exchanger constituting a heat pump type air conditioner and controls the rotation speed of the compressor, even when the rotation speed of the compressor is in a low speed range. A compressor control method for an air conditioner, in which the rotation speed of the compressor is increased after a certain period of time from when a compressor protector provided to protect the compressor is activated.
JP2408988A 1990-12-28 1990-12-28 Compressor control method for air-conditioner Pending JPH03247945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2408988A JPH03247945A (en) 1990-12-28 1990-12-28 Compressor control method for air-conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2408988A JPH03247945A (en) 1990-12-28 1990-12-28 Compressor control method for air-conditioner

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP58066061A Division JPS59191838A (en) 1983-04-14 1983-04-14 Control method of compressor of air conditioner

Publications (1)

Publication Number Publication Date
JPH03247945A true JPH03247945A (en) 1991-11-06

Family

ID=18518378

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2408988A Pending JPH03247945A (en) 1990-12-28 1990-12-28 Compressor control method for air-conditioner

Country Status (1)

Country Link
JP (1) JPH03247945A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110173870A (en) * 2019-05-29 2019-08-27 广东美的制冷设备有限公司 Control method, air conditioner and the computer readable storage medium of air conditioner

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51121843A (en) * 1975-04-17 1976-10-25 Matsushita Electric Ind Co Ltd A control method of the compressor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51121843A (en) * 1975-04-17 1976-10-25 Matsushita Electric Ind Co Ltd A control method of the compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110173870A (en) * 2019-05-29 2019-08-27 广东美的制冷设备有限公司 Control method, air conditioner and the computer readable storage medium of air conditioner
CN110173870B (en) * 2019-05-29 2021-03-19 广东美的制冷设备有限公司 Control method of air conditioner, air conditioner and computer readable storage medium

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