JPS54137756A - Process and system for defrosting in refrigerator - Google Patents
Process and system for defrosting in refrigeratorInfo
- Publication number
- JPS54137756A JPS54137756A JP4730478A JP4730478A JPS54137756A JP S54137756 A JPS54137756 A JP S54137756A JP 4730478 A JP4730478 A JP 4730478A JP 4730478 A JP4730478 A JP 4730478A JP S54137756 A JPS54137756 A JP S54137756A
- Authority
- JP
- Japan
- Prior art keywords
- defrosting
- frosting
- counting
- source side
- thermal
- 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
Links
Abstract
PURPOSE: To improve the accuracy of frosting detection for preventing the increase of the number of times and the time of frosting by counting pulses to be given at unit intervals when the thermal relation between an evaporator and the atmospheric air satisfies a certain relation and giving a defrosting instruction by the output of that counting.
CONSTITUTION: When frosting is given during a heating operation, detected temperatures in an evaporation thermal sensor 12 and an open air thermal sensor 13 are input into a microprocessor 22 for computation and discrimination, and when both temperatures satisfy a certain relation, the output is changed into pulses with unit intervals. When the number of the counting is risen to a fixed value, an auxiliary electric heater 9 is electrified for setting a three-minutes timer. After three minutes, the current to a relay 39 is intercepted for obtaining a cooling cycle, and defrosting is started in a thermal source side heat exchanger 5. Simultaneously, a relay 37 is excited to give an ultra-low-speed operation to a use side fan motor, while a thermal source side fan motor FM0 is stopped for setting a ten-minutes timer. When the pipe temperature in the thermal source side heat exchanger 5 is risen over about 10 degrees C., the defrosting is completed, and a defrosting stop signal is given for restarting a heating operation.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53047304A JPS592808B2 (en) | 1978-04-18 | 1978-04-18 | Refrigerator defrosting method and defrosting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53047304A JPS592808B2 (en) | 1978-04-18 | 1978-04-18 | Refrigerator defrosting method and defrosting device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54137756A true JPS54137756A (en) | 1979-10-25 |
JPS592808B2 JPS592808B2 (en) | 1984-01-20 |
Family
ID=12771540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53047304A Expired JPS592808B2 (en) | 1978-04-18 | 1978-04-18 | Refrigerator defrosting method and defrosting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS592808B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62119345A (en) * | 1985-11-18 | 1987-05-30 | Matsushita Electric Ind Co Ltd | Defrosting device of air conditioner |
JPS62172143A (en) * | 1986-01-24 | 1987-07-29 | Matsushita Electric Ind Co Ltd | Defrosting control device air-conditioning machine |
JPS62172140A (en) * | 1986-01-24 | 1987-07-29 | Matsushita Electric Ind Co Ltd | Control device for defrosting of air-conditioning machine |
JPS62172142A (en) * | 1986-01-24 | 1987-07-29 | Matsushita Electric Ind Co Ltd | Defrosting control device for air-conditioning machine |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6183785U (en) * | 1984-11-08 | 1986-06-03 | ||
JPS63132089U (en) * | 1987-02-19 | 1988-08-30 |
-
1978
- 1978-04-18 JP JP53047304A patent/JPS592808B2/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62119345A (en) * | 1985-11-18 | 1987-05-30 | Matsushita Electric Ind Co Ltd | Defrosting device of air conditioner |
JPH0566489B2 (en) * | 1985-11-18 | 1993-09-21 | Matsushita Electric Ind Co Ltd | |
JPS62172143A (en) * | 1986-01-24 | 1987-07-29 | Matsushita Electric Ind Co Ltd | Defrosting control device air-conditioning machine |
JPS62172140A (en) * | 1986-01-24 | 1987-07-29 | Matsushita Electric Ind Co Ltd | Control device for defrosting of air-conditioning machine |
JPS62172142A (en) * | 1986-01-24 | 1987-07-29 | Matsushita Electric Ind Co Ltd | Defrosting control device for air-conditioning machine |
JPH0566494B2 (en) * | 1986-01-24 | 1993-09-21 | Matsushita Electric Ind Co Ltd | |
JPH0566492B2 (en) * | 1986-01-24 | 1993-09-21 | Matsushita Electric Ind Co Ltd | |
JPH0566495B2 (en) * | 1986-01-24 | 1993-09-21 | Matsushita Electric Ind Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS592808B2 (en) | 1984-01-20 |
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