CN101251323B - Control method for defrosting of splitting heat pump air conditioner - Google Patents
Control method for defrosting of splitting heat pump air conditioner Download PDFInfo
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- CN101251323B CN101251323B CN2008103007276A CN200810300727A CN101251323B CN 101251323 B CN101251323 B CN 101251323B CN 2008103007276 A CN2008103007276 A CN 2008103007276A CN 200810300727 A CN200810300727 A CN 200810300727A CN 101251323 B CN101251323 B CN 101251323B
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Abstract
The invention relates to the air conditioning technique, in particular to a defrosting control method for a heat pump air conditioner. To overcome the shortcoming that the prior air conditioner fails to automatically defrost due to cold bad weather, the invention discloses a defrosting control method for the split type heat pump air conditioner. The technical proposal of the invention comprises the following steps that: a. after the forced defrosting program is started, the current working mode is detected; b. if the current working mode is the defrosting mode, the defrosting mode is completed continuously; if the current working mode is the heating mode, the following step is taken, otherwise, the forced defrosting program is exited; c. the defrosting mode is taken; d. when the defrosting mode runs for a certain time or an outdoor heat exchanger is up to the set temperature, the defrosting mode is exited. The defrosting control method for the heat pump air conditioner is used for the defrosting control of the heat pump air conditioner; under the circumstance that the automatic defrosting function failed, a user can defrost in a forced way by manual operation, thereby strengthening the heating effect of the air conditioner.
Description
Technical field
The present invention relates to air-conditioning technical, particularly the defrosting control method of heat pump air conditioner.
Background technology
The splitting heat pump air conditioner device is when heating, and the heat exchanger of off-premises station absorbs heat energy from air, through cold coal heat energy is transported to indoor heat exchanger, is discharged in the room again.
In winter, outdoor environment temperature is lower, and the off-premises station heat exchanger absorbs heat energy and can cause the heat exchanger surface temperature very low from air, can reach even far below 0 ℃.Therefore, when the air-conditioning long-play, the off-premises station heat exchanger surface can frosting, in winter of cold even can freeze.Frost or ice can reduce heat exchanger effectiveness greatly attached to heat exchanger surface, make air-conditioning heating effect variation.Therefore the split heat pump air conditioner all has automatic defrosting system.
The control mode of automatic defrosting is a lot, but all is need to judge whether defrosting through heat exchange temperature, outdoor temperature, outdoor heat exchanger variation of temperature situation in the sensing chamber.This mode through temperature detection realizes automatic defrosting system, can detect the condition that major part should defrost, and satisfies most of defrosting needs.But under the certain adverse condition, have and detect the situation generation of losing efficacy.Such as the unusual severe cold of outdoor environment; Outdoor environment temperature sensor, outdoor heat exchanger temperature sensor, outdoor heat exchanger are by freezing knot, and isolated with external environment, sensor temperature no longer changes; And the air-conditioning heat exchange reaches balance; Indoor coil pipe also no longer changes, and air-conditioning will can not get into the defrosting program so, and it is very poor that the air-conditioning heating effect can become.
Summary of the invention
Technical problem to be solved by this invention; Be exactly to having air-conditioning now under the bad weather of outdoor cold; The shortcoming that may cause automatic defrosting to lose efficacy provides a kind of air-conditioner defrosting control method, under the situation that automatic defrosting lost efficacy; The user can hand-operated forcedly defrost, thereby strengthens the heating effect of air-conditioning.
The technical scheme that the present invention solve the technical problem employing is that control method for defrosting of splitting heat pump air conditioner may further comprise the steps:
A. after starting pressure defrosting program, detect the work at present pattern;
If b. the work at present pattern is a defrosting mode, then continue to accomplish defrosting mode; If the work at present pattern is heating mode then gets into following step, otherwise withdraws from the defrosting program of forcing;
C. get into defrosting mode;
D. defrosting mode operation certain hour, or outdoor heat exchanger reaches design temperature, withdraws from defrosting mode.
The invention has the beneficial effects as follows that when the weather very severe, when automatic defrosting was failed, the user can force air-conditioning to defrost, and defrosting can be proceeded, thereby strengthen the heating effect of air-conditioning.
Description of drawings
Fig. 1 is the flow chart of embodiment.
The specific embodiment
The present invention increases and forces defrosting control method in air-conditioning control program, and the user can start the defrosting program in needs, to improve the heating effect of air-conditioning.Technical scheme of the present invention is that control method for defrosting of splitting heat pump air conditioner may further comprise the steps:
A. after starting pressure defrosting program, detect the work at present pattern;
If b. the work at present pattern is a defrosting mode, then continue to accomplish defrosting mode; If the work at present pattern is a heating mode, step below then getting into, otherwise withdraw from the defrosting program of forcing;
C. get into defrosting mode;
D. defrosting mode operation certain hour, or outdoor heat exchanger reaches design temperature, withdraws from defrosting mode;
Further, among the step a, start the defrosting program of forcing through pushing " forcing the defrosting button ";
Further, among the step a, if in 5 seconds, push " forcing the defrosting button " for the second time, air-conditioning withdraws from the defrosting program of forcing;
Further, among the step c, behind the entering defrosting mode, whether detect apart from defrosted last time the concluding time above 10 minutes, if then get into steps d; If not, the defrosting mode operation was withdrawed from defrosting mode after 5 minutes;
Concrete, in the steps d, said certain hour is 8 minutes;
Concrete, in the steps d, said design temperature is 20 ℃.
Embodiment
This routine pressure defrosting control flow is referring to Fig. 1.
Whether step 101 detects air-conditioning work at present pattern for heating description, if not, withdraws from the defrosting program of forcing; If get into step 102;
Whether step 106 detects apart from defrosted last time the concluding time above 10 minutes, if get into step 207; If not, get into step 107;
Claims (6)
1. control method for defrosting of splitting heat pump air conditioner may further comprise the steps:
A. after starting pressure defrosting program, detect the work at present pattern;
If b. the work at present pattern is a defrosting mode, then continue to accomplish defrosting mode; If the work at present pattern is heating mode then gets into following step, otherwise withdraws from the defrosting program of forcing;
C. get into defrosting mode;
D. defrosting mode operation certain hour, or outdoor heat exchanger reaches design temperature, withdraws from defrosting mode.
2. control method for defrosting of splitting heat pump air conditioner according to claim 1 is characterized in that, among the step a, forces the defrosting button to start the defrosting program of forcing through pushing.
3. control method for defrosting of splitting heat pump air conditioner according to claim 2 is characterized in that, among the step a, after the defrosting program is forced in startup, forces the defrosting button if in 5 seconds, push for the second time, then withdraws from pressure defrosting program.
4. control method for defrosting of splitting heat pump air conditioner according to claim 1 is characterized in that, among the step c, behind the entering defrosting mode, whether detects apart from defrosted last time the concluding time above 10 minutes, if then get into steps d; If not, the defrosting mode operation was withdrawed from defrosting mode after 5 minutes.
5. according to claim 1,2,3 or 4 described control method for defrosting of splitting heat pump air conditioner, it is characterized in that in the steps d, said certain hour is 8 minutes.
6. control method for defrosting of splitting heat pump air conditioner according to claim 5 is characterized in that, in the steps d, said design temperature is 20 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103007276A CN101251323B (en) | 2008-03-26 | 2008-03-26 | Control method for defrosting of splitting heat pump air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103007276A CN101251323B (en) | 2008-03-26 | 2008-03-26 | Control method for defrosting of splitting heat pump air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101251323A CN101251323A (en) | 2008-08-27 |
| CN101251323B true CN101251323B (en) | 2012-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008103007276A Active CN101251323B (en) | 2008-03-26 | 2008-03-26 | Control method for defrosting of splitting heat pump air conditioner |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538126B (en) * | 2010-12-24 | 2014-02-26 | 中国扬子集团滁州扬子空调器有限公司 | Defrosting control method of heat-pump type air conditioner |
| CN103423838B (en) * | 2010-12-24 | 2017-06-30 | 中国扬子集团滁州扬子空调器有限公司 | A kind of defrosting control method of heat pump type air conditioner |
| CN102901182B (en) * | 2012-10-16 | 2015-06-03 | 青岛海尔空调电子有限公司 | Defrosting method for air conditioner |
| CN103557651B (en) * | 2013-10-25 | 2015-12-30 | 周晓明 | A kind of air-cooling heat pump air conditioner intelligent defrosting method |
| CN104197594A (en) * | 2014-08-28 | 2014-12-10 | 四川长虹电器股份有限公司 | Defrosting control method for multi-on-line variable-frequency air conditioners |
| CN105509314B (en) * | 2014-09-22 | 2018-04-20 | 珠海格力电器股份有限公司 | The defrosting method and system of a kind of air-source water heater |
| CN105387560B (en) * | 2015-10-30 | 2018-02-13 | 株洲麦格米特电气有限责任公司 | A kind of DC frequency converting air-conditioner intelligent defrosting method |
| CN105972862A (en) * | 2016-05-18 | 2016-09-28 | 珠海格力电器股份有限公司 | Heat pump and defrosting method and device for same |
| CN105972771A (en) * | 2016-05-30 | 2016-09-28 | 广东美的制冷设备有限公司 | Defrosting control method and device for air conditioner |
| CN114738968B (en) * | 2022-03-31 | 2023-11-21 | 青岛海尔空调器有限总公司 | Air conditioner misoperation prevention method and device |
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- 2008-03-26 CN CN2008103007276A patent/CN101251323B/en active Active
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Owner name: SICHUAN CHANGHONG ELECTRIC CO.,LTD. Free format text: FORMER OWNER: SICHUAN CHANGHONG ELECTRIC APPLIANCE CO., LTD. Effective date: 20090703 |
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Effective date of registration: 20090703 Address after: Postcode 35, Mian Xing East Road, Gaoxin District, Sichuan, Mianyang Province, China: 621000 Applicant after: Sichuan Changhong Air-Coditioning Co., Ltd. Address before: Postcode 35, Mian Xing East Road, Gaoxin District, Sichuan, Mianyang Province, China: 621000 Applicant before: Sichuan Changhong Electrical Appliance Co., Ltd. |
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