CN103353156A - Control method for variable frequency air conditioner adopting duplex cylinder compressor - Google Patents
Control method for variable frequency air conditioner adopting duplex cylinder compressor Download PDFInfo
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- CN103353156A CN103353156A CN2013101519266A CN201310151926A CN103353156A CN 103353156 A CN103353156 A CN 103353156A CN 2013101519266 A CN2013101519266 A CN 2013101519266A CN 201310151926 A CN201310151926 A CN 201310151926A CN 103353156 A CN103353156 A CN 103353156A
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Abstract
The invention discloses a control method for a variable frequency air conditioner adopting a duplex cylinder compressor. When the air conditioner is opened by a user, an infrared sensor conducts real-time detection; when a controller judges that the user leaves the room and the leave time arrives a preset time I, the temperature set by the user is adjusted to a temperature close to the outdoor environment temperature; when the controller judges that the user leaves the room and the leave time arrives a preset time II, the air conditioner stops. According to the method provided by the invention, the purpose of decreasing air conditioner energy consumption is realized.
Description
Technical field
The present invention relates to a kind of control method that adopts the convertible frequency air-conditioner of duplex cylinder compressor, belong to room air and regulate the field.
Background technology
Chinese patent literature CN202303713U discloses a kind of air-conditioning that adopts duplex cylinder compressor, comprises three-way solenoid valve, solenoid operated four-way valve, duplex cylinder compressor etc.Extension tube attached one end of duplex cylinder compressor is communicated with respectively with the blast pipe of duplex cylinder compressor and the muffler of duplex cylinder compressor by three-way solenoid valve; The other end of the extension tube attached of duplex cylinder compressor connects the little cylinder valve sheet interface of duplex cylinder compressor, and the blast pipe of described duplex cylinder compressor connects the exhaust outlet of twin-tub variable compressor etc.Compared with prior art, when this patent is carried out the refrigeration mode operation with the air-conditioning of duplex cylinder compressor, little cylinder valve sheet in the duplex cylinder compressor is closed, the muffler internal pressure balance of the extension tube attached internal pressure of duplex cylinder compressor and duplex cylinder compressor, cause the little cylinder of duplex cylinder compressor unloaded, can effectively reduce the operation of air conditioner energy consumption.In addition, when this patent was carried out the heating mode operation with the air-conditioning of duplex cylinder compressor, little cylinder valve sheet was opened, and the twin-tub of duplex cylinder compressor is worked simultaneously, and the extension tube attached of duplex cylinder compressor and the blast pipe of duplex cylinder compressor all are in connected state, greatly improve heating effect.
Yet how the air-conditioning of this patent and unexposed employing duplex cylinder compressor is controlled in conjunction with existing converter technique and is reached best implementation result.
Summary of the invention
The invention reside in to solve adopts the air-conditioning of duplex cylinder compressor how to control the problem that reaches best implementation result in conjunction with existing converter technique.
For this reason, the invention provides a kind of control method that adopts the convertible frequency air-conditioner of duplex cylinder compressor, when convertible frequency air-conditioner is in the refrigeration mode operation, it is characterized in that controller is according to the difference of user's design temperature T1 and indoor environment temperature T204, automatically adjust the running frequency of duplex cylinder compressor, and control electric, the dead electricity that gets of three-way solenoid valve, solenoid operated four-way valve:
When T204-T1 〉=4 ℃, the running frequency of adjusting duplex cylinder compressor is 80-120HZ, control three-way solenoid valve dead electricity, solenoid operated four-way valve dead electricity;
When 2 ℃≤T204-T1＜4 ℃, the running frequency of adjusting duplex cylinder compressor is 50-80Hz,, control three-way solenoid valve dead electricity, solenoid operated four-way valve dead electricity;
When 1 ℃≤T204-T1＜2 ℃, the running frequency of adjusting duplex cylinder compressor is 30-50Hz, control three-way solenoid valve dead electricity, solenoid operated four-way valve dead electricity;
When 0 ℃≤T204-T1＜1 ℃, the running frequency of adjusting duplex cylinder compressor is 40-60Hz, and the control three-way solenoid valve gets electric, solenoid operated four-way valve dead electricity;
When-1 ℃≤T204-T1＜0 ℃, the running frequency of adjusting duplex cylinder compressor is 1-40Hz, and the control three-way solenoid valve gets electric, solenoid operated four-way valve dead electricity.
The solenoid operated four-way valve dead electricity adopts the air-conditioning system of control method of the present invention to move at refrigeration mode.When T204-T1 〉=4 ℃, when namely needing maximum cooling capacity, the three-way solenoid valve dead electricity, duplex cylinder compressor is the large discharge capacity work of twin-tub; Adjust to the highest frequency section operation of 80-120HZ; Like this, convertible frequency air-conditioner can be realized fast-refrigerating.And when 2 ℃≤T204-T1＜4 ℃ or 1 ℃≤T204-T1＜2 ℃, when namely needing larger refrigerating capacity, the three-way solenoid valve dead electricity, duplex cylinder compressor is the large discharge capacity work of twin-tub; Adjust to the low band frequency section operation of 50-80Hz stage casing frequency band or 30-50Hz; Like this, convertible frequency air-conditioner can satisfy fast-refrigerating, can reach suitable energy-saving effect again.
And when 0 ℃≤T204-T1＜1 ℃ or-1 ℃≤T204-T1＜0 ℃, when namely needing less refrigerating capacity, it is electric that three-way solenoid valve gets, and duplex cylinder compressor becomes the work of single cylinder small displacement; Adjust to the low band frequency section operation of 40-60Hz stage casing frequency band or 1-40Hz; Like this, convertible frequency air-conditioner can satisfy refrigeration demand, and is very energy-conservation again, and vibration is less, noise is lower.
As further optimization, the control method of the convertible frequency air-conditioner of employing duplex cylinder compressor of the present invention, when convertible frequency air-conditioner is in the heating mode operation, it is characterized in that controller is according to the difference of user's design temperature T1 and indoor environment temperature T204, automatically adjust the running frequency of duplex cylinder compressor, and control electric, the dead electricity that gets of three-way solenoid valve, solenoid operated four-way valve:
When T1-T204 〉=4 ℃, the running frequency of adjusting duplex cylinder compressor is 80-120HZ, and control three-way solenoid valve dead electricity, solenoid operated four-way valve get electric;
When 2 ℃≤T1-T204＜4 ℃, the running frequency of adjusting duplex cylinder compressor is 50-80Hz,, control three-way solenoid valve dead electricity, solenoid operated four-way valve get electric;
When 1 ℃≤T1-T204＜2 ℃, the running frequency of adjusting duplex cylinder compressor is 30-50Hz, and control three-way solenoid valve dead electricity, solenoid operated four-way valve get electric;
When 0 ℃≤T1-T204＜1 ℃, the running frequency of adjusting duplex cylinder compressor is 40-60Hz, and that the control three-way solenoid valve gets is electric, solenoid operated four-way valve gets electric;
When-1 ℃≤T1-T204＜0 ℃, the running frequency of adjusting duplex cylinder compressor is 1-40Hz, and that the control three-way solenoid valve gets is electric, solenoid operated four-way valve gets electric.
Solenoid operated four-way valve gets electric, adopts the air-conditioning system of control method of the present invention to move at heating mode.When T1-T204 〉=4 ℃, when namely needing maximum heating capacity, the three-way solenoid valve dead electricity, duplex cylinder compressor is the large discharge capacity work of twin-tub; Adjust to the highest frequency section operation of 80-120HZ; Like this, convertible frequency air-conditioner can be realized heating fast.And when 2 ℃≤T1-T204＜4 ℃ or 1 ℃≤T1-T204＜2 ℃, when namely needing larger refrigerating capacity, the three-way solenoid valve dead electricity, duplex cylinder compressor is the large discharge capacity work of twin-tub; Adjust to the low band frequency section operation of 50-80Hz stage casing frequency band or 30-50Hz; Like this, convertible frequency air-conditioner can satisfy fast and heats, and can reach suitable energy-saving effect again.
And when 0 ℃≤T1-T204＜1 ℃ or-1 ℃≤T1-T204＜0 ℃, when namely needing less heating capacity, it is electric that three-way solenoid valve gets, and duplex cylinder compressor becomes the work of single cylinder small displacement; Adjust to the low band frequency section operation of 40-60Hz stage casing frequency band or 1-40Hz; Like this, convertible frequency air-conditioner can satisfy the demand of heating, and is very energy-conservation again, and vibration is less, noise is lower.
As further improvement, the control method of convertible frequency air-conditioner of the present invention, when convertible frequency air-conditioner is in the heating mode operation, it is characterized in that controller enters, withdraws from the defrosting mode operation according to outdoor coil pipe used temperature T 203, outdoor environment temperature T202 control air-conditioning, and control electric, the dead electricity that gets of three-way solenoid valve, solenoid operated four-way valve:
When T202 〉=5 ℃ and T203＜0 ℃, perhaps-2 ℃＜T202＜5 ℃ and T203＜-4 ℃, perhaps when T202≤-2 ℃ and T203≤T202-A, the control air-conditioning enters the defrosting mode operation, control three-way solenoid valve dead electricity, solenoid operated four-way valve dead electricity;
When T203 〉=12 ℃, the control air-conditioning withdraws from the defrosting mode operation;
Above-mentioned A is 5～9 ℃, and air-conditioning is set in the controller when dispatching from the factory.
Like this, when convertible frequency air-conditioner is in heating mode and needs defrosting, can be transformed into fast defrosting mode, i.e. refrigeration mode operation, and defrosting is more fast, thoroughly.In addition, through evidence, the convertible frequency air-conditioner of relatively existing employing single cylinder compressor adopts convertible frequency air-conditioner heating capacity when low-temperature heating of control method of the present invention can improve 8%-20%.
As further improvement, the control method of convertible frequency air-conditioner of the present invention, when it is characterized in that the three-way solenoid valve dead electricity, controller is adjusted the running frequency of duplex cylinder compressor according to compressor exhaust temperature T201:
When 105 ℃〉during T201 〉=95 ℃, duplex cylinder compressor remains on the current state operation;
When T201 rises and 110〉T201 〉=105 ℃, adjust duplex cylinder compressor with 1 hertz of frequency reducing operation in per 10 seconds, the step of going forward side by side makes the following judgment and controls; If T201 descends and less than 95 ℃, stops aforementioned adjustment to the duplex cylinder compressor frequency reducing; If T201 still rises, and T201 〉=110 ℃, the duplex cylinder compressor operation stopped immediately.
Like this, convertible frequency air-conditioner can in time be adjusted according to delivery temperature T201 the running frequency of duplex cylinder compressor, thereby has guaranteed reliable, the stable operation of duplex cylinder compressor, has prolonged the service life of duplex cylinder compressor.
As further improvement, the control method of convertible frequency air-conditioner of the present invention, it is characterized in that getting electric when three-way solenoid valve, and | T1-T204| 〉=2 ℃, and the running frequency f1 of duplex cylinder compressor〉70Hz, accumulated running time be when being no less than 200s, control three-way solenoid valve dead electricity and adjust the running frequency f2=2f1 of duplex cylinder compressor; When the three-way solenoid valve dead electricity, and | T1-T204|＜2 ℃, and the running frequency f1 of duplex cylinder compressor＜20Hz, accumulated running time be when being no less than 200s, control three-way solenoid valve get electric and adjust the running frequency f2=40Hz of duplex cylinder compressor.
Like this, convertible frequency air-conditioner has guaranteed that by the conversion of twin-tub and single cylinder duplex cylinder compressor can move, and has reduced air conditioner noises when having regulated indoor environment temperature under low-power, low vibration.
Description of drawings
Further specify the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structure principle chart of the air-conditioning system of the control method of the convertible frequency air-conditioner of enforcement employing duplex cylinder compressor of the present invention;
The refrigeration system schematic diagram that Fig. 2 is air-conditioning system shown in Figure 1 when three-way solenoid valve V1 gets electric, solenoid operated four-way valve V2 dead electricity, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through;
Fig. 3 is the refrigeration system schematic diagram of air-conditioning system shown in Figure 1 when three-way solenoid valve V1 dead electricity, solenoid operated four-way valve V2 dead electricity, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through;
To be air-conditioning system shown in Figure 1 get electric, solenoid operated four-way valve V2 at three-way solenoid valve V1 to Fig. 4 gets refrigeration system schematic diagram when electric, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through;
To be air-conditioning system shown in Figure 1 get refrigeration system schematic diagram when electric at three-way solenoid valve V1 dead electricity, solenoid operated four-way valve V2 to Fig. 5, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1, implement the air-conditioning system of control method of the convertible frequency air-conditioner of employing duplex cylinder compressor of the present invention, comprise duplex cylinder compressor 1, electromagnetism 5 way valve 2, outdoor heat exchanger 3, filter 1, choke valve 5, filter 26, indoor heat exchanger 7, Y-type three way type 8, gas-liquid separator 9, be used for detecting the exhaust gas temperature sensor 201 of compressor exhaust temperature T201, be used for the outdoor environment temperature sensor 202 of sensing chamber's external environment temperature T 202, be used for detecting the outdoor coil pipe used temperature sensor 203 of outdoor coil pipe used temperature T 203, be used for detecting the indoor environment temperature sensor 204 of indoor environment temperature T204.
Wherein, electromagnetism 5 way valve 2 is comprised of three-way solenoid valve V1, solenoid operated four-way valve V2.The import of the exhaust outlet of duplex cylinder compressor 1 (vat), outdoor heat exchanger 3, indoor heat exchanger 7 outlets, Y-type three way type 8 all are connected with the port of solenoid operated four-way valve V2.The little cylinder gas returning port 10 of second port of Y-type three way type and duplex cylinder compressor 1 links, and the 3rd port of Y-type three way type links through the gas returning port (vat) of gas-liquid separator 9 and duplex cylinder compressor 1.The exhaust outlet (vat) of the port of three-way solenoid valve V1 and duplex cylinder compressor 1 links, and the port of the second port and Y-type three way type links, and the 3rd port of three-way solenoid valve V1 and little cylinder exhaust outlet link.
When convertible frequency air-conditioner was in the refrigeration mode operation, controller was adjusted the running frequency of duplex cylinder compressor automatically according to the difference of user's design temperature T1 and indoor environment temperature T204, and controlled electric, the dead electricity that gets of three-way solenoid valve V1, solenoid operated four-way valve V2:
When T204-T1 〉=4 ℃, the running frequency of adjusting duplex cylinder compressor is 80-120HZ, control three-way solenoid valve V1 dead electricity, solenoid operated four-way valve V2 dead electricity; This moment refrigeration system as shown in Figure 3, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through;
When 2 ℃≤T204-T1＜4 ℃, the running frequency of adjusting duplex cylinder compressor is 50-80Hz,, control three-way solenoid valve V1 dead electricity, solenoid operated four-way valve V2 dead electricity; This moment refrigeration system as shown in Figure 3, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through;
When 1 ℃≤T204-T1＜2 ℃, the running frequency of adjusting duplex cylinder compressor is 30-50Hz, control three-way solenoid valve V1 dead electricity, solenoid operated four-way valve V2 dead electricity; This moment refrigeration system as shown in Figure 3, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through;
When 0 ℃≤T204-T1＜1 ℃, the running frequency of adjusting duplex cylinder compressor is 40-60Hz, and control three-way solenoid valve V1 gets electric, solenoid operated four-way valve V2 dead electricity; This moment refrigeration system as shown in Figure 2, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through;
When-1 ℃≤T204-T1＜0 ℃, the running frequency of adjusting duplex cylinder compressor is 1-40Hz, and control three-way solenoid valve V1 gets electric, solenoid operated four-way valve V2 dead electricity; This moment refrigeration system as shown in Figure 2, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through.
Solenoid operated four-way valve V2 dead electricity adopts the air-conditioning system of control method of the present invention to move at refrigeration mode.When T204-T1 〉=4 ℃, when namely needing maximum cooling capacity, three-way solenoid valve V1 dead electricity, duplex cylinder compressor is the large discharge capacity work of twin-tub; Adjust to the highest frequency section operation of 80-120HZ; Like this, convertible frequency air-conditioner can be realized fast-refrigerating.And when 2 ℃≤T204-T1＜4 ℃ or 1 ℃≤T204-T1＜2 ℃, when namely needing larger refrigerating capacity, three-way solenoid valve V1 dead electricity, duplex cylinder compressor is the large discharge capacity work of twin-tub; Adjust to the low band frequency section operation of 50-80Hz stage casing frequency band or 30-50Hz; Like this, convertible frequency air-conditioner can satisfy fast-refrigerating, can reach suitable energy-saving effect again.
And when 0 ℃≤T204-T1＜1 ℃ or-1 ℃≤T204-T1＜0 ℃, when namely needing less refrigerating capacity, it is electric that three-way solenoid valve V1 gets, and duplex cylinder compressor becomes the work of single cylinder small displacement; Adjust to the low band frequency section operation of 40-60Hz stage casing frequency band or 1-40Hz; Like this, convertible frequency air-conditioner can satisfy refrigeration demand, and is very energy-conservation again, and vibration is less, noise is lower.
When convertible frequency air-conditioner was in the heating mode operation, controller was adjusted the running frequency of duplex cylinder compressor automatically according to the difference of user's design temperature T1 and indoor environment temperature T204, and controlled electric, the dead electricity that gets of three-way solenoid valve V1, solenoid operated four-way valve V2:
When T1-T204 〉=4 ℃, the running frequency of adjusting duplex cylinder compressor is 80-120HZ, and control three-way solenoid valve V1 dead electricity, solenoid operated four-way valve V2 get electric; This moment refrigeration system as shown in Figure 5, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through;
When 2 ℃≤T1-T204＜4 ℃, the running frequency of adjusting duplex cylinder compressor is 50-80Hz,, control three-way solenoid valve V1 dead electricity, solenoid operated four-way valve V2 get electric; This moment refrigeration system as shown in Figure 5, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through;
When 1 ℃≤T1-T204＜2 ℃, the running frequency of adjusting duplex cylinder compressor is 30-50Hz, and control three-way solenoid valve V1 dead electricity, solenoid operated four-way valve V2 get electric; This moment refrigeration system as shown in Figure 5, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through;
When 0 ℃≤T1-T204＜1 ℃, the running frequency of adjusting duplex cylinder compressor is 40-60Hz, and that control three-way solenoid valve V1 gets is electric, solenoid operated four-way valve V2 gets electric; This moment refrigeration system as shown in Figure 4, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through;
When-1 ℃≤T1-T204＜0 ℃, the running frequency of adjusting duplex cylinder compressor is 1-40Hz, and that control three-way solenoid valve V1 gets is electric, solenoid operated four-way valve V2 gets electric; This moment refrigeration system as shown in Figure 4, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through.
Solenoid operated four-way valve V2 gets electric, adopts the air-conditioning system of control method of the present invention to move at heating mode.When T1-T204 〉=4 ℃, when namely needing maximum heating capacity, three-way solenoid valve V1 dead electricity, duplex cylinder compressor is the large discharge capacity work of twin-tub; Adjust to the highest frequency section operation of 80-120HZ; Like this, convertible frequency air-conditioner can be realized heating fast.And when 2 ℃≤T1-T204＜4 ℃ or 1 ℃≤T1-T204＜2 ℃, when namely needing larger refrigerating capacity, three-way solenoid valve V1 dead electricity, duplex cylinder compressor is the large discharge capacity work of twin-tub; Adjust to the low band frequency section operation of 50-80Hz stage casing frequency band or 30-50Hz; Like this, convertible frequency air-conditioner can satisfy fast and heats, and can reach suitable energy-saving effect again.
And when 0 ℃≤T1-T204＜1 ℃ or-1 ℃≤T1-T204＜0 ℃, when namely needing less heating capacity, it is electric that three-way solenoid valve V1 gets, and duplex cylinder compressor becomes the work of single cylinder small displacement; Adjust to the low band frequency section operation of 40-60Hz stage casing frequency band or 1-40Hz; Like this, convertible frequency air-conditioner can satisfy the demand of heating, and is very energy-conservation again, and vibration is less, noise is lower.
When convertible frequency air-conditioner was in the heating mode operation, controller entered, withdraws from the defrosting mode operation according to outdoor coil pipe used temperature T 203, outdoor environment temperature T202 control air-conditioning, and controlled electric, the dead electricity that gets of three-way solenoid valve V1, solenoid operated four-way valve V2:
When T202 〉=5 ℃ and T203＜0 ℃, perhaps-2 ℃＜T202＜5 ℃ and T203＜-4 ℃, perhaps when T202≤-2 ℃ and T203≤T202-A, the control air-conditioning enters the defrosting mode operation, control three-way solenoid valve V1 dead electricity, solenoid operated four-way valve V2 dead electricity; This moment refrigeration system as shown in Figure 3, the flow direction of arrow points cold-producing medium wherein, the pipeline that cold-producing medium that thick line is shown with flows through;
When T203 〉=12 ℃, the control air-conditioning withdraws from the defrosting mode operation;
Above-mentioned A is 5～9 ℃, and air-conditioning is set in the controller when dispatching from the factory.
Like this, when convertible frequency air-conditioner is in heating mode and needs defrosting, can be transformed into fast defrosting mode, i.e. refrigeration mode operation, and defrosting is more fast, thoroughly.In addition, through evidence, the convertible frequency air-conditioner of relatively existing employing single cylinder compressor adopts convertible frequency air-conditioner heating capacity when low-temperature heating of control method of the present invention can improve 8%-20%.
During three-way solenoid valve V1 dead electricity, controller is adjusted the running frequency of duplex cylinder compressor according to compressor exhaust temperature T201:
When 105 ℃〉during T201 〉=95 ℃, duplex cylinder compressor remains on the current state operation;
When T201 rises and 110〉T201 〉=105 ℃, adjust duplex cylinder compressor with 1 hertz of frequency reducing operation in per 10 seconds, the step of going forward side by side makes the following judgment and controls; If T201 descends and less than 95 ℃, stops aforementioned adjustment to the duplex cylinder compressor frequency reducing; If T201 still rises, and T201 〉=110 ℃, the duplex cylinder compressor operation stopped immediately.
Like this, convertible frequency air-conditioner can in time be adjusted according to delivery temperature T201 the running frequency of duplex cylinder compressor, thereby has guaranteed reliable, the stable operation of duplex cylinder compressor, has prolonged the service life of duplex cylinder compressor.
When three-way solenoid valve V1 get electric, and | T1-T204| 〉=2 ℃, and the running frequency f1 of duplex cylinder compressor〉70Hz, accumulated running time be when being no less than 200s, control three-way solenoid valve V1 dead electricity and adjust the running frequency f2=2f1 of duplex cylinder compressor; When three-way solenoid valve V1 dead electricity, and | T1-T204|＜2 ℃, and the running frequency f1 of duplex cylinder compressor＜20Hz, accumulated running time be when being no less than 200s, control three-way solenoid valve V1 gets electric and adjusts the running frequency f2=40Hz of duplex cylinder compressor.
Like this, convertible frequency air-conditioner has guaranteed that by the conversion of twin-tub and single cylinder duplex cylinder compressor can move, and has reduced air conditioner noises when having regulated indoor environment temperature under low-power, low vibration.
More than be one of embodiments of the present invention, for those skilled in the art, do not spend performing creative labour, on the basis of above-described embodiment, can do multiple variation, can realize purpose of the present invention equally.But this variation obviously should be in the protection domain of claims of the present invention.
Claims (5)
1. adopt the control method of the convertible frequency air-conditioner of duplex cylinder compressor, when convertible frequency air-conditioner is in the refrigeration mode operation, it is characterized in that controller is according to the difference of user's design temperature T1 and indoor environment temperature T204, automatically adjust the running frequency of duplex cylinder compressor, and control electric, the dead electricity that gets of three-way solenoid valve, solenoid operated four-way valve:
When T204-T1 〉=4 ℃, the running frequency of adjusting duplex cylinder compressor is 80-120HZ, control three-way solenoid valve dead electricity, solenoid operated four-way valve dead electricity;
When 2 ℃≤T204-T1＜4 ℃, the running frequency of adjusting duplex cylinder compressor is 50-80Hz,, control three-way solenoid valve dead electricity, solenoid operated four-way valve dead electricity;
When 1 ℃≤T204-T1＜2 ℃, the running frequency of adjusting duplex cylinder compressor is 30-50Hz, control three-way solenoid valve dead electricity, solenoid operated four-way valve dead electricity;
When 0 ℃≤T204-T1＜1 ℃, the running frequency of adjusting duplex cylinder compressor is 40-60Hz, and the control three-way solenoid valve gets electric, solenoid operated four-way valve dead electricity;
When-1 ℃≤T204-T1＜0 ℃, the running frequency of adjusting duplex cylinder compressor is 1-40Hz, and the control three-way solenoid valve gets electric, solenoid operated four-way valve dead electricity.
2. the control method of convertible frequency air-conditioner according to claim 1, when convertible frequency air-conditioner is in the heating mode operation, it is characterized in that controller is according to the difference of user's design temperature and indoor environment temperature, automatically adjust the running frequency of duplex cylinder compressor, and control electric, the dead electricity that gets of three-way solenoid valve, solenoid operated four-way valve:
When T1-T204 〉=4 ℃, the running frequency of adjusting duplex cylinder compressor is 80-120HZ, and control three-way solenoid valve dead electricity, solenoid operated four-way valve get electric;
When 2 ℃≤T1-T204＜4 ℃, the running frequency of adjusting duplex cylinder compressor is 50-80Hz,, control three-way solenoid valve dead electricity, solenoid operated four-way valve get electric;
When 1 ℃≤T1-T204＜2 ℃, the running frequency of adjusting duplex cylinder compressor is 30-50Hz, and control three-way solenoid valve dead electricity, solenoid operated four-way valve get electric;
When 0 ℃≤T1-T204＜1 ℃, the running frequency of adjusting duplex cylinder compressor is 40-60Hz, and that the control three-way solenoid valve gets is electric, solenoid operated four-way valve gets electric;
When-1 ℃≤T1-T204＜0 ℃, the running frequency of adjusting duplex cylinder compressor is 1-40Hz, and that the control three-way solenoid valve gets is electric, solenoid operated four-way valve gets electric.
3. the control method of convertible frequency air-conditioner according to claim 2, when convertible frequency air-conditioner is in the heating mode operation, it is characterized in that controller enters, withdraws from the defrosting mode operation according to outdoor coil pipe used temperature T 203, outdoor environment temperature T202 control air-conditioning, and control electric, the dead electricity that gets of three-way solenoid valve, solenoid operated four-way valve:
When T202 〉=5 ℃ and T203＜0 ℃, perhaps-2 ℃＜T202＜5 ℃ and T203＜-4 ℃, perhaps when T202≤-2 ℃ and T203≤T202-A, the control air-conditioning enters the defrosting mode operation, control three-way solenoid valve dead electricity, solenoid operated four-way valve dead electricity;
When T203 〉=12 ℃, the control air-conditioning withdraws from the defrosting mode operation;
Above-mentioned A is 5～9 ℃, and air-conditioning is set in the controller when dispatching from the factory.
4. the control method of convertible frequency air-conditioner according to claim 3, when it is characterized in that the three-way solenoid valve dead electricity, controller is adjusted the running frequency of duplex cylinder compressor according to compressor exhaust temperature T201:
When 105 ℃〉during T201 〉=95 ℃, duplex cylinder compressor remains on the current state operation;
When T201 rises and 110〉T201 〉=105 ℃, adjust duplex cylinder compressor with 1 hertz of frequency reducing operation in per 10 seconds, the step of going forward side by side makes the following judgment and controls; If T201 descends and less than 95 ℃, stops aforementioned adjustment to the duplex cylinder compressor frequency reducing; If T201 still rises, and T201 〉=110 ℃, the duplex cylinder compressor operation stopped immediately.
5. the control method of convertible frequency air-conditioner according to claim 4, it is characterized in that getting electric when three-way solenoid valve, and | T1-T204| 〉=2 ℃, and the running frequency f1 of duplex cylinder compressor〉70Hz, accumulated running time be when being no less than 200s, control three-way solenoid valve dead electricity and adjust the running frequency f2=2f1 of duplex cylinder compressor; When the three-way solenoid valve dead electricity, and | T1-T204|＜2 ℃, and the running frequency f1 of duplex cylinder compressor＜20Hz, accumulated running time be when being no less than 200s, control three-way solenoid valve get electric and adjust the running frequency f2=40Hz of duplex cylinder compressor.
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| CN201310151926.6A CN103353156B (en) | 2013-04-27 | 2013-04-27 | Control method for variable frequency air conditioner adopting duplex cylinder compressor |
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| CN201310151926.6A CN103353156B (en) | 2013-04-27 | 2013-04-27 | Control method for variable frequency air conditioner adopting duplex cylinder compressor |
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| CN103884081A (en) * | 2014-04-21 | 2014-06-25 | 珠海格力电器股份有限公司 | Control method of air conditioning system |
| CN104047843A (en) * | 2014-05-27 | 2014-09-17 | 珠海格力电器股份有限公司 | Single-cylinder and double-cylinder switching method of variable-frequency and variable-capacity compressor |
| CN105402848A (en) * | 2015-11-27 | 2016-03-16 | 珠海格力电器股份有限公司 | Control method and control device for variable-capacity compressor system |
| CN105627615A (en) * | 2016-03-03 | 2016-06-01 | 广东美的制冷设备有限公司 | Air conditioner system and control method thereof |
| CN105698426A (en) * | 2016-03-03 | 2016-06-22 | 广东美的制冷设备有限公司 | Air conditioning system and control method of air conditioning system |
| CN106152429A (en) * | 2015-03-30 | 2016-11-23 | Tcl空调器(中山)有限公司 | Intelligent air-conditioning system and control method thereof |
| CN106895549A (en) * | 2017-01-20 | 2017-06-27 | 美的集团股份有限公司 | The control method of duplex cylinder compressor air-conditioner |
| CN106895660A (en) * | 2017-02-06 | 2017-06-27 | 安徽美芝制冷设备有限公司 | Frequency conversion refrigerator and its control system and control method |
| WO2017185514A1 (en) * | 2016-04-29 | 2017-11-02 | 广东美的制冷设备有限公司 | Cooling and heating air conditioner, cooling-only air conditioner, and control method for air conditioner |
| WO2017185516A1 (en) * | 2016-04-29 | 2017-11-02 | 广东美的制冷设备有限公司 | Control method for cooling-heating type air conditioner and control method for cooling-only type air conditioner |
| CN109186042A (en) * | 2018-09-20 | 2019-01-11 | 珠海格力电器股份有限公司 | Defrosting method for air conditioner |
| WO2020073488A1 (en) * | 2018-10-10 | 2020-04-16 | 珠海格力电器股份有限公司 | Method, device, unit and air conditioning system for controlling cylinder cutting of compressor |
| CN112880049A (en) * | 2021-02-22 | 2021-06-01 | 青岛海信日立空调***有限公司 | Air conditioning system |
| CN113203184A (en) * | 2021-05-21 | 2021-08-03 | 宁波奥克斯电气股份有限公司 | Defrosting control method, air conditioner and computer readable storage medium |
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| CN103884081B (en) * | 2014-04-21 | 2016-04-06 | 珠海格力电器股份有限公司 | Control method of air conditioning system |
| CN103884081A (en) * | 2014-04-21 | 2014-06-25 | 珠海格力电器股份有限公司 | Control method of air conditioning system |
| CN104047843B (en) * | 2014-05-27 | 2016-10-26 | 珠海格力电器股份有限公司 | Single-cylinder and double-cylinder switching method of variable-frequency and variable-capacity compressor |
| CN104047843A (en) * | 2014-05-27 | 2014-09-17 | 珠海格力电器股份有限公司 | Single-cylinder and double-cylinder switching method of variable-frequency and variable-capacity compressor |
| CN106152429A (en) * | 2015-03-30 | 2016-11-23 | Tcl空调器(中山)有限公司 | Intelligent air-conditioning system and control method thereof |
| CN105402848A (en) * | 2015-11-27 | 2016-03-16 | 珠海格力电器股份有限公司 | Control method and control device for variable-capacity compressor system |
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| CN105698426A (en) * | 2016-03-03 | 2016-06-22 | 广东美的制冷设备有限公司 | Air conditioning system and control method of air conditioning system |
| CN105627615A (en) * | 2016-03-03 | 2016-06-01 | 广东美的制冷设备有限公司 | Air conditioner system and control method thereof |
| WO2017185514A1 (en) * | 2016-04-29 | 2017-11-02 | 广东美的制冷设备有限公司 | Cooling and heating air conditioner, cooling-only air conditioner, and control method for air conditioner |
| WO2017185516A1 (en) * | 2016-04-29 | 2017-11-02 | 广东美的制冷设备有限公司 | Control method for cooling-heating type air conditioner and control method for cooling-only type air conditioner |
| CN106895549A (en) * | 2017-01-20 | 2017-06-27 | 美的集团股份有限公司 | The control method of duplex cylinder compressor air-conditioner |
| CN106895549B (en) * | 2017-01-20 | 2019-04-19 | 美的集团股份有限公司 | The control method of duplex cylinder compressor air conditioner |
| CN106895660A (en) * | 2017-02-06 | 2017-06-27 | 安徽美芝制冷设备有限公司 | Frequency conversion refrigerator and its control system and control method |
| CN109186042A (en) * | 2018-09-20 | 2019-01-11 | 珠海格力电器股份有限公司 | Defrosting method for air conditioner |
| WO2020073488A1 (en) * | 2018-10-10 | 2020-04-16 | 珠海格力电器股份有限公司 | Method, device, unit and air conditioning system for controlling cylinder cutting of compressor |
| CN112880049A (en) * | 2021-02-22 | 2021-06-01 | 青岛海信日立空调***有限公司 | Air conditioning system |
| CN113203184A (en) * | 2021-05-21 | 2021-08-03 | 宁波奥克斯电气股份有限公司 | Defrosting control method, air conditioner and computer readable storage medium |
| CN113203184B (en) * | 2021-05-21 | 2022-03-18 | 宁波奥克斯电气股份有限公司 | Defrosting control method, air conditioner and computer readable storage medium |
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