JPS57198939A - Defrosting controller for heatr pump type air conditioner - Google Patents

Defrosting controller for heatr pump type air conditioner

Info

Publication number
JPS57198939A
JPS57198939A JP56083621A JP8362181A JPS57198939A JP S57198939 A JPS57198939 A JP S57198939A JP 56083621 A JP56083621 A JP 56083621A JP 8362181 A JP8362181 A JP 8362181A JP S57198939 A JPS57198939 A JP S57198939A
Authority
JP
Japan
Prior art keywords
coil
temperature
gradient
compressor
air conditioner
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.)
Granted
Application number
JP56083621A
Other languages
Japanese (ja)
Other versions
JPS6040774B2 (en
Inventor
Kazuji Kakubari
Hisashi Tokisaki
Masayuki Shimizu
Kazuo Ogura
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP56083621A priority Critical patent/JPS6040774B2/en
Publication of JPS57198939A publication Critical patent/JPS57198939A/en
Publication of JPS6040774B2 publication Critical patent/JPS6040774B2/en
Expired 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/006—Defroster control with electronic control circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

PURPOSE:To enable the presence or absence of frosting to be detected securely and with a high accuracy, by a method wherein the temperature of an interior coil of an air conditioner is detected, and defrosting is started when the gradient of temperature fall exceeds a set gradient at the time of heating. CONSTITUTION:At the time of the heating operation, an interior fan motor 27 is driven, and electric currents are supplied to a relay 17 for driving a compressor, a relay 18 for an exterior fan and a coil 9 for a four-way valve, so that the four-way valve is changed over to a heating cycle and both the compressor and the exterior fan are driven. Thereafter, when the exterior coil is frosted and a coolant-evaporating action in the coil is lowered, the temperature of the interior coil is also lowered. The temperature of the interior coil is detected by a sensor 12, and whether or not the gradient of the temperature fall has exceeded a set gradient is discrminated by a microcomputer 1. When an output YES is generated three times successively, the compressor and the exterior fan are stopped and the four-way valve is changed over to a defrosting cycle.
JP56083621A 1981-05-29 1981-05-29 Defrosting control method for heat pump air conditioner Expired JPS6040774B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56083621A JPS6040774B2 (en) 1981-05-29 1981-05-29 Defrosting control method for heat pump air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56083621A JPS6040774B2 (en) 1981-05-29 1981-05-29 Defrosting control method for heat pump air conditioner

Publications (2)

Publication Number Publication Date
JPS57198939A true JPS57198939A (en) 1982-12-06
JPS6040774B2 JPS6040774B2 (en) 1985-09-12

Family

ID=13807550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56083621A Expired JPS6040774B2 (en) 1981-05-29 1981-05-29 Defrosting control method for heat pump air conditioner

Country Status (1)

Country Link
JP (1) JPS6040774B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59200145A (en) * 1983-04-28 1984-11-13 Sharp Corp Air conditioner
JPS59219639A (en) * 1983-05-25 1984-12-11 Sharp Corp Air conditioner
JPS6191438A (en) * 1984-10-11 1986-05-09 Matsushita Electric Ind Co Ltd Method of controlling defrosting of heat pump type air conditioner
EP0345098A2 (en) * 1988-06-02 1989-12-06 Hussmann Manufacturing Limited Refrigeration system
EP0462524A2 (en) * 1990-06-18 1991-12-27 Sanyo Electric Co., Ltd Defrost control method for a heat pump

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01129465U (en) * 1988-02-24 1989-09-04
US11327398B2 (en) 2019-04-30 2022-05-10 Samsung Electronics Co., Ltd. Photoresist compositions and methods for fabricating semiconductor devices using the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59200145A (en) * 1983-04-28 1984-11-13 Sharp Corp Air conditioner
JPS59219639A (en) * 1983-05-25 1984-12-11 Sharp Corp Air conditioner
JPH0113015B2 (en) * 1983-05-25 1989-03-03 Sharp Kk
JPS6191438A (en) * 1984-10-11 1986-05-09 Matsushita Electric Ind Co Ltd Method of controlling defrosting of heat pump type air conditioner
JPH0319457B2 (en) * 1984-10-11 1991-03-15 Matsushita Electric Ind Co Ltd
EP0345098A2 (en) * 1988-06-02 1989-12-06 Hussmann Manufacturing Limited Refrigeration system
EP0462524A2 (en) * 1990-06-18 1991-12-27 Sanyo Electric Co., Ltd Defrost control method for a heat pump

Also Published As

Publication number Publication date
JPS6040774B2 (en) 1985-09-12

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