JPS54101533A - Defrosting control device - Google Patents
Defrosting control deviceInfo
- Publication number
- JPS54101533A JPS54101533A JP728178A JP728178A JPS54101533A JP S54101533 A JPS54101533 A JP S54101533A JP 728178 A JP728178 A JP 728178A JP 728178 A JP728178 A JP 728178A JP S54101533 A JPS54101533 A JP S54101533A
- Authority
- JP
- Japan
- Prior art keywords
- defrosting
- heater
- completion
- switching element
- resistance
- 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
- Defrosting Systems (AREA)
- Control Of Resistance Heating (AREA)
Abstract
PURPOSE: To avoid the overheating during defrosting and to eliminate the defrosting completion timer by arranging such that a heater or a part of a heater is made into a positive-characteristic thermister with a large positive temperature coefficient of resistance.
CONSTITUTION: A circuit is formed of heater 2 having a positive characteristic thermister element with a very large positive temperature coefficient of resistance, switching element 3, which controls the heater, control circuit 4, which gives the switching element control signals, and sensor 5, which detects the current in the circuit. Switching element 3 is set ON by the signal from the control circuit, current flows in heater 2, and heat is generated, and thereby defrosting starts. The heat generated during the time of defrosting is absorbed by frost, and thus the temperature rise in the heater is checked but the temperature rises on completion of defrosting. As a result of this temperature rise, resistance increases sharply, and the current decreases and the heat generation is reduced. In this way, the excess heating after completion of defrosting is prevented without using a defrosting completion sensor.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP728178A JPS54101533A (en) | 1978-01-27 | 1978-01-27 | Defrosting control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP728178A JPS54101533A (en) | 1978-01-27 | 1978-01-27 | Defrosting control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54101533A true JPS54101533A (en) | 1979-08-10 |
Family
ID=11661644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP728178A Pending JPS54101533A (en) | 1978-01-27 | 1978-01-27 | Defrosting control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54101533A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5784956A (en) * | 1980-11-17 | 1982-05-27 | Hitachi Ltd | Defroster |
| DE3145445A1 (en) * | 1980-11-17 | 1982-08-05 | Hitachi, Ltd., Tokyo | DEFROSTING DEVICE |
| JPS5823186A (en) * | 1981-07-31 | 1983-02-10 | 東芝熱器具株式会社 | Electric carpet |
| JPS5825244U (en) * | 1981-08-13 | 1983-02-17 | 森 孝弘 | Image sensor direction indicator |
| US5345775A (en) * | 1993-03-03 | 1994-09-13 | Ridenour Ralph Gaylord | Refrigeration system detection assembly |
| DE102015008041A1 (en) * | 2015-06-23 | 2016-12-29 | Liebherr-Hausgeräte Ochsenhausen GmbH | Fridge and / or freezer |
| WO2024093781A1 (en) * | 2022-10-31 | 2024-05-10 | 青岛海尔电冰箱有限公司 | Defrosting heating device for refrigerator, and refrigerator |
-
1978
- 1978-01-27 JP JP728178A patent/JPS54101533A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5784956A (en) * | 1980-11-17 | 1982-05-27 | Hitachi Ltd | Defroster |
| DE3145445A1 (en) * | 1980-11-17 | 1982-08-05 | Hitachi, Ltd., Tokyo | DEFROSTING DEVICE |
| US4432211A (en) * | 1980-11-17 | 1984-02-21 | Hitachi, Ltd. | Defrosting apparatus |
| JPS6142179B2 (en) * | 1980-11-17 | 1986-09-19 | Hitachi Ltd | |
| JPS5823186A (en) * | 1981-07-31 | 1983-02-10 | 東芝熱器具株式会社 | Electric carpet |
| JPS5825244U (en) * | 1981-08-13 | 1983-02-17 | 森 孝弘 | Image sensor direction indicator |
| US5345775A (en) * | 1993-03-03 | 1994-09-13 | Ridenour Ralph Gaylord | Refrigeration system detection assembly |
| DE102015008041A1 (en) * | 2015-06-23 | 2016-12-29 | Liebherr-Hausgeräte Ochsenhausen GmbH | Fridge and / or freezer |
| WO2024093781A1 (en) * | 2022-10-31 | 2024-05-10 | 青岛海尔电冰箱有限公司 | Defrosting heating device for refrigerator, and refrigerator |
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