JPS6446530A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPS6446530A JPS6446530A JP62200458A JP20045887A JPS6446530A JP S6446530 A JPS6446530 A JP S6446530A JP 62200458 A JP62200458 A JP 62200458A JP 20045887 A JP20045887 A JP 20045887A JP S6446530 A JPS6446530 A JP S6446530A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- rotational speed
- voltage
- target
- frosting
- 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 performance in detecting frosting of an air conditioner by outputting a signal to indicate frosting when the rotational speed of a DC fan motor is at a target speed and the DC voltage to the fan is over a reference voltage which is decided according to the target speed. CONSTITUTION:The speed of a DC fan motor 1 is detected and it is judged whether or not the speed is at a target rotational speed. Next, it is judged whether or not the DC voltage of an electric power source is equal to a reference voltage. If, in those judgements, the rotational speed is not equal to the target speed, the DC voltage is controlled in order to bring the rotational speed of the DC motor 1 to the target rotational speed. If the DC voltage is larger than the reference voltage when the rotational speed is equal to the target speed, the temperature of a coolant is compared with a specified temperature. If the temperature of the coolant is lower than the specified temperature, it is judged that the frosting has occurred and the defrosting operation is conducted. With this constitution it is possible to improve the performance in detecting frosting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62200458A JPH0684837B2 (en) | 1987-08-10 | 1987-08-10 | Air conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62200458A JPH0684837B2 (en) | 1987-08-10 | 1987-08-10 | Air conditioner |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6446530A true JPS6446530A (en) | 1989-02-21 |
JPH0684837B2 JPH0684837B2 (en) | 1994-10-26 |
Family
ID=16424639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62200458A Expired - Lifetime JPH0684837B2 (en) | 1987-08-10 | 1987-08-10 | Air conditioner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0684837B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002340451A (en) * | 2001-05-21 | 2002-11-27 | Hitachi Ltd | Outdoor unit of air conditioner |
WO2015145714A1 (en) * | 2014-03-28 | 2015-10-01 | 日立アプライアンス株式会社 | Air conditioner |
JPWO2016084139A1 (en) * | 2014-11-26 | 2017-07-20 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー(ホンコン)リミテッド | Air conditioner |
JPWO2017122265A1 (en) * | 2016-01-12 | 2018-03-29 | 三菱電機株式会社 | Air conditioner |
CN114234520A (en) * | 2021-12-21 | 2022-03-25 | 海信(山东)冰箱有限公司 | Refrigerator and defrosting control method thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110302937A1 (en) * | 2009-03-17 | 2011-12-15 | Bujak Jr Walter E | Demand defrost for heat pumps |
-
1987
- 1987-08-10 JP JP62200458A patent/JPH0684837B2/en not_active Expired - Lifetime
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002340451A (en) * | 2001-05-21 | 2002-11-27 | Hitachi Ltd | Outdoor unit of air conditioner |
WO2015145714A1 (en) * | 2014-03-28 | 2015-10-01 | 日立アプライアンス株式会社 | Air conditioner |
CN105980784A (en) * | 2014-03-28 | 2016-09-28 | 江森自控日立空调技术(香港)有限公司 | Air conditioner |
CN105980784B (en) * | 2014-03-28 | 2018-12-11 | 日立江森自控空调有限公司 | Air conditioner |
US10222108B2 (en) | 2014-03-28 | 2019-03-05 | Hitachi-Johnson Controls Air Conditioning, Inc. | Air conditioner |
JPWO2016084139A1 (en) * | 2014-11-26 | 2017-07-20 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー(ホンコン)リミテッド | Air conditioner |
CN107208917A (en) * | 2014-11-26 | 2017-09-26 | 江森自控日立空调技术(香港)有限公司 | Air conditioner |
EP3225930A4 (en) * | 2014-11-26 | 2018-07-18 | Hitachi-Johnson Controls Air Conditioning, Inc. | Air conditioner |
US10989433B2 (en) | 2014-11-26 | 2021-04-27 | Hitachi-Johnson Controls Air Conditioning, Inc. | Air conditioner |
JPWO2017122265A1 (en) * | 2016-01-12 | 2018-03-29 | 三菱電機株式会社 | Air conditioner |
CN114234520A (en) * | 2021-12-21 | 2022-03-25 | 海信(山东)冰箱有限公司 | Refrigerator and defrosting control method thereof |
CN114234520B (en) * | 2021-12-21 | 2023-12-29 | 海信冰箱有限公司 | Refrigerator and defrosting control method thereof |
Also Published As
Publication number | Publication date |
---|---|
JPH0684837B2 (en) | 1994-10-26 |
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