JPS6438576A - Controller for air conditioner - Google Patents
Controller for air conditionerInfo
- 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
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 .
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)
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 |
-
1987
- 1987-07-30 JP JP62190999A patent/JPS6438576A/en active Pending
Cited By (2)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
MY105741A (en) | Refrigerating system for use in vehicle with engine which enables selective use of commercial ac power source and a generator driven by the engine for driving a refrigerant compressor | |
JPS5515349A (en) | Power conservation type air-conditioning control method and its device | |
KR900005723B1 (en) | Method for controlling air-conditioner | |
EP0353520A3 (en) | Method of and apparatus for detecting shaft position of compressor for air conditioner, and control apparatus for stopping air compressor by using shaft position detecting apparatus | |
JPS6438576A (en) | Controller for air conditioner | |
JPS5712244A (en) | Air conditioner | |
TW262529B (en) | Refrigerating apparatus | |
JPS5488641A (en) | Heat source system | |
JPS5762348A (en) | Air conditioner | |
JPS5596858A (en) | Method of controlling operation of capacity-variable freezing air conditioner | |
JPS55107016A (en) | Driving controller for electric fan of automobile engine | |
JPS5682627A (en) | Controlling method for air conditioning for automobile | |
JPS5712245A (en) | Air conditioner | |
JPS56151826A (en) | Air conditioner | |
JPS5520334A (en) | Indoor fan control system for heat-pump type air-conditioning device | |
JPS5735234A (en) | Method of controlling cooling and heating system | |
JPS5471454A (en) | Heat source apparatus | |
JPS57203816A (en) | Cooling fan control circuit for motor car | |
JPS6419281A (en) | Freezer/refrigerator | |
TW253937B (en) | A control device for cooling fan motor of refrigerator compressor | |
JPS56162342A (en) | Air conditioner | |
FR2294870A1 (en) | Railway passenger coach air conditioning - varies compressor speed with temp and cylinders cut in and out for rough control | |
JPS5694142A (en) | Frosting detecting device for freezer | |
JPS56137032A (en) | Air conditioner | |
JPH0249400U (en) |