CN101858632A - Four-way valve defrosting backing up method of air conditioner without shutting down - Google Patents
Four-way valve defrosting backing up method of air conditioner without shutting down Download PDFInfo
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- CN101858632A CN101858632A CN200910068441A CN200910068441A CN101858632A CN 101858632 A CN101858632 A CN 101858632A CN 200910068441 A CN200910068441 A CN 200910068441A CN 200910068441 A CN200910068441 A CN 200910068441A CN 101858632 A CN101858632 A CN 101858632A
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- defrosting
- defrost
- way valve
- control program
- air conditioner
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Abstract
The invention relates to a four-way valve defrosting backing up method of air conditioner without shutting down, an operation method executed when the existing main control program of air conditioner enters defrosting stage, including the following stages: 1) whether the main control program enters the defrosting stage is judged, if no, the main control program is returned and is executed continuously, if yes, the next stage is carried out; 2) defrosting mode is determined and the defrosting stage is carried out; 3) defrosting is finished to return to the main control program. The defrosting mode includes a four-way valve defrosting mode and a compound defrosting mode. In the invention, when the main control program is executed to the defrosting stage, firstly whether an induction heater is normal and whether outdoor temperature is high are judged, and different defrosting modes are adopted according to the judging result. The defrosting mode is avoided to be operated without shutting down under abnormal condition. Thus, the service life of the air conditioner is ensured, defrosting effect under the condition that the air conditioner is not shut down is also ensured, and the service efficiency of the air conditioner is improved.
Description
Technical field
The present invention relates to a kind of Defrost method of air-conditioner.Particularly relate to a kind of four-way valve defrosting backing up method of air conditioner without shutting down of under the non-stop-machine state of air-conditioning, guaranteeing defrosting effect.
Background technology
Usually air-conditioner is made up of heater, refrigeration machine, clarifier etc., can or purify for room air refrigeration or heating, and can also regulate indoor humidity, for the user creates suitable indoor environment.
If classification substantially, air-conditioner can be divided into Saperated air conditioner and integral air conditioner.Separation type and one-piece typely have an identical function.Saperated air conditioner is provided with the indoor set with cooling/heat release in the indoor, the off-premises station with heat release/cooling and compressor is set in the outside, and links off-premises station and indoor set with the refrigerant pipe.Be arranged on and be provided with condenser (outdoor heat converter) and compressor in the outdoor off-premises station, be arranged in the indoor indoor set, be provided with evaporimeter (indoor heat converter).
Fig. 1 is the schematic diagram of common off-premises station.As shown in Figure 1, common off-premises station 10 has the housing 1 of hexahedral shape.Have peristome 14 on the front plate 12 of housing 1, the inboard of peristome 14 is provided with radiator fan.
As shown in Figure 2, the inside of housing 1 is provided with compressor 4 and condenser 5.Compressor 4 compresses the refrigerant that gasifies after indoor set and room air heat exchange.In the condenser 5, be compressed into the refrigerant of high-temperature high-pressure state,, liquefy by heat exchange.Form air-flow through outdoor machine fan again, allow air flow to outflow by peristome.During airflow passes condenser 5, can allow the refrigerant heat release of the condition of high temperature.When air-conditioner carries out heating operation, carry out the action opposite with above-mentioned action.
Above-mentioned air-conditioning is in heating process, and frosting is understood on the surface of condenser, and the frost of being tied has hindered the heat exchange performance of condenser.Therefore, after condenser has been tied frost to a certain degree, master control program will be carried out operation defrosting program.
At present, what the Defrost mode of air-conditioning mostly adopted is, shuts down the back and earlier cross valve is closed, and cross valve is commutated to the refrigerating operaton state, and the running refrigerating pattern defrosts, and the blower fan of indoor and outdoor machine is out of service simultaneously, and in defrost process, air-conditioning stops heating operation.Owing to stop heating operation, directly influenced the heating effect of air-conditioning, and the cycle of defrosting is also longer.
In order to overcome the problem that air-conditioner defrosting must be shut down, also developed the air-conditioner of not shutting down defrosting now.But described air-conditioner of not shutting down defrosting exists following problem:
1, do not judge the process whether induction heater makes mistakes in the master control program,, just may cause dangerous operating mode in case induction heater is made mistakes;
The process of the temperature conditions when 2, not judging defrosting in the master control program, low or too high because temperature is crossed, all be difficult to operation and do not shut down defrosting mode;
3, defrosting is not thorough.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of and can control the four-way valve defrosting backing up method of air conditioner without shutting down of the Defrost mode of air-conditioner according to the outdoor temperature and the ruuning situation of induction heater.
The technical solution adopted in the present invention is: a kind of four-way valve defrosting backing up method of air conditioner without shutting down is to enter operation method performed in the defrost phase in the existing master control program operation of air-conditioner, comprises as the next stage:
1) judges whether master control program enters defrost phase,, then continue to return the master control program operation,, then enter next stage if enter defrost phase if do not enter defrost phase;
2) determine Defrost mode and the stage of defrosting;
3) defrosting finishes to return master control program.
Described Defrost mode includes four-way valve defrosting and compound defrosting mode.
Described definite Defrost mode is to judge at first whether induction heater makes mistakes, if induction heater is made mistakes, then adopt the four-way valve defrosting mode to defrost, otherwise, continue to judge that whether outdoor temperature is less than design temperature, if less than design temperature, then adopt the four-way valve defrosting mode to defrost, otherwise, continue to judge that whether outdoor temperature is greater than design temperature, if greater than design temperature, then adopt the four-way valve defrosting mode to defrost, otherwise, compound Defrost mode adopted.
Four-way valve defrosting backing up method of air conditioner without shutting down of the present invention when master control program runs to defrost phase, is judged the height whether normal, outdoor temperature of induction heater earlier, adopts different Defrost modes according to the result who judges.Avoided also not shutting down defrosting mode under the induction heater error situation and under situation too high or too low for temperature in operation.Thereby guaranteed the service life of air-conditioner, also guaranteed the defrosting effect under the state of air conditioner without shutting, and improved the service efficiency of air-conditioner.
Description of drawings
Fig. 1 is the external structure schematic diagram of air-conditioner outdoor unit;
Fig. 2 is the internal structure schematic diagram of air-conditioner outdoor unit;
Fig. 3 is the schematic flow sheet that the present invention does not shut down down four-way valve defrosting backing up method.
Wherein:
1: casing 2: outdoor machine fan
3: printed circuit board (PCB) 4: compressor
5: condenser 6: deflector
7: top panel 8: lower panel
10: off-premises station 12: front plate
14: peristome
The specific embodiment
Below, describe four-way valve defrosting backing up method of air conditioner without shutting down of the present invention in conjunction with the accompanying drawings and embodiments in detail and how to realize.
As shown in Figure 3, four-way valve defrosting backing up method of air conditioner without shutting down of the present invention is to enter operation method performed in the defrost phase in the existing master control program operation of air-conditioner, comprises as the next stage:
1) judges whether master control program enters defrost phase;
When master control program runs to the stage of setting, begin to carry out the operation that judges whether to enter defrosting, judged result, if do not need the operation defrosting, just also do not enter defrost phase, then continue to return the master control program operation, judged result, if need the operation defrosting, then enter defrost phase, promptly enter next stage.
2) determine Defrost mode and the stage of defrosting;
Defrost mode described here includes the mode and the compound defrosting mode of four-way valve defrosting.
Described definite Defrost mode is, judges at first whether the induction heater that is arranged in the air-conditioning on the compressor liquid storage can makes mistakes, judged result, if induction heater makes mistakes, then the four-way valve defrosting mode that generally adopts at present of operation defrosts.That is, shut down the back and earlier cross valve is closed, and cross valve is commutated to the refrigerating operaton state, the running refrigerating pattern defrosts, and the blower fan of indoor and outdoor machine is out of service simultaneously, and in defrost process, air-conditioning stops heating operation.Otherwise, continue whether to judge outdoor temperature that the design temperature of present embodiment is 10 ℃ less than design temperature, judged result is if outdoor temperature less than 10 ℃ of design temperatures, then still adopts above-mentioned four-way valve defrosting mode to defrost, otherwise, continue whether to judge outdoor temperature greater than design temperature, the design temperature of present embodiment is 10 ℃, judged result, if outdoor temperature is greater than 10 ℃ of design temperatures, then still adopt the four-way valve defrosting mode to defrost, otherwise, compound Defrost mode adopted.Described compound Defrost mode is that to adopt number of patent application be 200810153761.5, and name is called disclosed a kind of compound Defrost mode in the patent application of " a kind of hot gas of air-conditioner is close to logical continuous heat-supply and defrost loop structure ".
3) defrosting finishes to return master control program, continues the operation master control program.
From the above mentioned, the present invention has avoided both having improved the service efficiency of air-conditioning also not shutting down defrosting mode in operation under the induction heater error situation and under situation too high or too low for temperature, has guaranteed the service life of air-conditioning again.
Content of the present invention is not limited in the above-described embodiment, and the knowledgeable people in the same area can propose other embodiment easily within technological guidance's thought of the present invention, but this embodiment comprises within the scope of the present invention.
Claims (3)
1. a four-way valve defrosting backing up method of air conditioner without shutting down is characterized in that, is to enter operation method performed in the defrost phase in the existing master control program operation of air-conditioner, comprises as the next stage:
1) judges whether master control program enters defrost phase,, then continue to return the master control program operation,, then enter next stage if enter defrost phase if do not enter defrost phase;
2) determine Defrost mode and the stage of defrosting;
3) defrosting finishes to return master control program.
2. four-way valve defrosting backing up method of air conditioner without shutting down according to claim 1 is characterized in that, described Defrost mode includes four-way valve defrosting and compound defrosting mode.
3. four-way valve defrosting backing up method of air conditioner without shutting down according to claim 1; it is characterized in that; described definite Defrost mode is; judge at first whether induction heater makes mistakes; if induction heater is made mistakes; then adopt the four-way valve defrosting mode to defrost, otherwise, continue to judge that whether outdoor temperature is less than design temperature; if less than design temperature; then adopt the four-way valve defrosting mode to defrost, otherwise, continue to judge that whether outdoor temperature is greater than design temperature; if greater than design temperature; then adopt the four-way valve defrosting mode to defrost, otherwise, compound Defrost mode adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910068441A CN101858632A (en) | 2009-04-10 | 2009-04-10 | Four-way valve defrosting backing up method of air conditioner without shutting down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910068441A CN101858632A (en) | 2009-04-10 | 2009-04-10 | Four-way valve defrosting backing up method of air conditioner without shutting down |
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| Publication Number | Publication Date |
|---|---|
| CN101858632A true CN101858632A (en) | 2010-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910068441A Pending CN101858632A (en) | 2009-04-10 | 2009-04-10 | Four-way valve defrosting backing up method of air conditioner without shutting down |
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| CN (1) | CN101858632A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698452A (en) * | 2016-02-29 | 2016-06-22 | 广东万和电气有限公司 | Control method used for defrosting mode withdrawing of heat pump and heat pump using control method |
| CN108954676A (en) * | 2018-07-17 | 2018-12-07 | 苏州韵之秋智能科技有限公司 | A kind of intelligent air condition does not shut down defrosting method |
| CN111351309A (en) * | 2020-03-11 | 2020-06-30 | 合肥美的电冰箱有限公司 | Refrigeration equipment and fault detection method, control method and processing device thereof |
-
2009
- 2009-04-10 CN CN200910068441A patent/CN101858632A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698452A (en) * | 2016-02-29 | 2016-06-22 | 广东万和电气有限公司 | Control method used for defrosting mode withdrawing of heat pump and heat pump using control method |
| CN105698452B (en) * | 2016-02-29 | 2018-07-06 | 广东万和电气有限公司 | The control method for exiting defrosting mode for heat pump and the heat pump using its method |
| CN108954676A (en) * | 2018-07-17 | 2018-12-07 | 苏州韵之秋智能科技有限公司 | A kind of intelligent air condition does not shut down defrosting method |
| CN111351309A (en) * | 2020-03-11 | 2020-06-30 | 合肥美的电冰箱有限公司 | Refrigeration equipment and fault detection method, control method and processing device thereof |
| CN111351309B (en) * | 2020-03-11 | 2022-04-15 | 合肥美的电冰箱有限公司 | Refrigeration equipment and fault detection method, control method and processing device thereof |
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Application publication date: 20101013 |