JPS6438576A - Controller for air conditioner - Google Patents

Controller for air conditioner

Info

Publication number
JPS6438576A
JPS6438576A JP62190999A JP19099987A JPS6438576A JP S6438576 A JPS6438576 A JP S6438576A JP 62190999 A JP62190999 A JP 62190999A JP 19099987 A JP19099987 A JP 19099987A JP S6438576 A JPS6438576 A JP S6438576A
Authority
JP
Japan
Prior art keywords
frequency
motor
output
evaporator
inverter
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
JP62190999A
Other languages
Japanese (ja)
Inventor
Haruo Ishikawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62190999A priority Critical patent/JPS6438576A/en
Publication of JPS6438576A publication Critical patent/JPS6438576A/en
Pending legal-status Critical Current

Links

Landscapes

  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE: To prevent freezing without a temperature sensor provided for an evaporator by providing a maximum rotational speed limiting means to limit the maximum rotational speed in the operation of a motor based on a specified rule to eliminate the freezing of the evaporator when the temperature in a room is lower than a specified temperature previously determined during the cooling operation. CONSTITUTION: The frequency of a motor 21 is so selected that an evaporator 26 is kept from being frozen corresponding to a room temperature based on a characteristic chart (m). The frequency fmax determined is sent to a low value preference circuit 9 by a timer 10 when a specified time passes after the determination of the frequency. Out of an output (f) of a room temperature vs output frequency determining means 4 and the output fmax of a maximum output frequency determining means 8, a lower value f* is selected by the lower value priority circuit 9 to be sent to an inverter drive circuit 11. On the other hand, a power rectified by a rectifier circuit part of the inverter 12 is controlled by an inverter drive circuit 11 so that the operation frequency of the motor 21 reaches f* through the inverter circuit part f* for converting to an AC power thereby always keeping the operation frequency of the motor 21 below fmax .
JP62190999A 1987-07-30 1987-07-30 Controller for air conditioner Pending JPS6438576A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62190999A JPS6438576A (en) 1987-07-30 1987-07-30 Controller for air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62190999A JPS6438576A (en) 1987-07-30 1987-07-30 Controller for air conditioner

Publications (1)

Publication Number Publication Date
JPS6438576A true JPS6438576A (en) 1989-02-08

Family

ID=16267179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62190999A Pending JPS6438576A (en) 1987-07-30 1987-07-30 Controller for air conditioner

Country Status (1)

Country Link
JP (1) JPS6438576A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008185250A (en) * 2007-01-29 2008-08-14 Fuji Electric Retail Systems Co Ltd Cooling apparatus
JP2021110474A (en) * 2020-01-07 2021-08-02 シャープ株式会社 Air conditioner and server

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008185250A (en) * 2007-01-29 2008-08-14 Fuji Electric Retail Systems Co Ltd Cooling apparatus
JP2021110474A (en) * 2020-01-07 2021-08-02 シャープ株式会社 Air conditioner and server

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