CN103499158B - A kind of air-conditioner and control method thereof - Google Patents
A kind of air-conditioner and control method thereof Download PDFInfo
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- CN103499158B CN103499158B CN201310436053.3A CN201310436053A CN103499158B CN 103499158 B CN103499158 B CN 103499158B CN 201310436053 A CN201310436053 A CN 201310436053A CN 103499158 B CN103499158 B CN 103499158B
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Abstract
The present invention discloses a kind of air-conditioner, and this air-conditioner is connected with the throttling arrangement connected successively between outdoor heat exchange unit and indoor evaporator, auxiliary refrigerant is filled with and magnetic valve.Correspondingly, the invention provides a kind of control method of air-conditioner, the method by opening throttling arrangement and magnetic valve after air-conditioner receives starting-up signal; And after refrigeration mode air-conditioner receives off signal by first shut electromagnetic valve and after scheduled time T1 again close compressor unit store a part of refrigerant to fill with at auxiliary refrigerant, for being introduced into indoor evaporator heat exchange in advance through magnetic valve when start is at refrigeration mode next time at air-conditioner.Because air-conditioner of the present invention and its control method store a part of refrigerant in advance when refrigeration mode shuts down in auxiliary refrigerant is filled with, to be introduced into indoor evaporator heat exchange in advance through magnetic valve when start is at refrigeration mode next time at air-conditioner, thus indoor temperature can be made to decline fast, therefore improve the refrigerating speed of air-conditioner.<!--1-->
Description
Technical field
The present invention relates to air-conditioning technical field, be specifically related to a kind of air-conditioner and control method thereof.
Background technology
Along with improving constantly of people's quality of life, people require also more and more higher to environmental amenity, be not only rest on traditional refrigerating function, and have higher requirement to the refrigeration of air-conditioner to the expectation of air-conditioner.The refrigerating speed of existing air-conditioner is slow, and just blowing cold air of starting shooting for a long time, the experience sense of this comfort level and user of having had a strong impact on room is subject to.
Summary of the invention
The object of the present invention is to provide a kind of air-conditioner and control method thereof, be intended to the refrigerating speed improving air-conditioner.
In order to realize object of the present invention, the invention provides a kind of air-conditioner, comprising compressor unit, outdoor heat exchange unit and indoor heat exchange unit, described indoor heat exchange unit has indoor evaporator.The throttling arrangement connected successively, auxiliary refrigerant filling and magnetic valve is connected with between outdoor heat exchange unit and indoor evaporator.Described throttling arrangement and magnetic valve are opened when air-conditioner is started shooting.Described auxiliary refrigerant is filled with and to be used for when refrigeration mode shuts down by first shut electromagnetic valve and then close compressor unit to prestore a part of refrigerant.
Correspondingly, the invention provides a kind of control method of air-conditioner, described air-conditioner comprises compressor unit, outdoor unit and indoor unit, and described indoor unit has indoor evaporator and indoor fan, and the method comprises:
S110, between outdoor unit and indoor evaporator, connect the throttling arrangement connected successively, auxiliary refrigerant filling and magnetic valve, air-conditioner opens throttling arrangement and magnetic valve after receiving starting-up signal; And
S120, after refrigeration mode air-conditioner receives off signal, first shut electromagnetic valve and after scheduled time T1 again close compressor unit store a part of refrigerant to fill with at auxiliary refrigerant, for being introduced into indoor evaporator heat exchange in advance through magnetic valve when start is at refrigeration mode next time at air-conditioner.
Preferably, described step S120 is specially:
S121, after refrigeration mode air-conditioner receives off signal, air-conditioner detects delivery temperature and delivery temperature and predetermined value is compared;
S122, when delivery temperature is not more than predetermined value, first shut electromagnetic valve and after scheduled time T1 again close compressor unit store a part of refrigerant to fill with at auxiliary refrigerant, for being introduced into indoor evaporator heat exchange in advance through magnetic valve when start is at refrigeration mode next time at air-conditioner; And
S123, when delivery temperature is greater than predetermined value, reduces the running frequency of compressor unit to reduce delivery temperature, then performs step S121.
Preferably, described step S120 is specially:
S121, after refrigeration mode air-conditioner receives off signal, air-conditioner detects delivery temperature and delivery temperature and predetermined value is compared;
S122, when delivery temperature is not more than predetermined value, first shut electromagnetic valve and after scheduled time T1 again close compressor unit store a part of refrigerant to fill with at auxiliary refrigerant, for being introduced into indoor evaporator heat exchange in advance through magnetic valve when start is at refrigeration mode next time at air-conditioner; And
S123, when delivery temperature is greater than predetermined value, reduce the running frequency of compressor unit to reduce delivery temperature, and detect delivery temperature, when delivery temperature is not more than predetermined value, more first shut electromagnetic valve and after the scheduled time T2 close compressor unit store a part of refrigerant to fill with at auxiliary refrigerant.
Preferably, in described step S123, the degree departing from predetermined value according to delivery temperature makes compressor unit reduce different running frequencies.
Preferably, the control method of described air-conditioner, also comprises:
S130, after heating mode air-conditioner receives off signal, close compressor unit and magnetic valve mix with outdoor refrigerant with the refrigerant blocked in indoor evaporator simultaneously.
Preferably, in described step S130, after close compressor unit and magnetic valve, indoor fan is still made to run scheduled time T3.
Because air-conditioner of the present invention and its control method store a part of refrigerant in advance when refrigeration mode shuts down in auxiliary refrigerant is filled with, to be introduced into indoor evaporator heat exchange in advance through magnetic valve when start is at refrigeration mode next time at air-conditioner, this refrigerant energy fast repairing making auxiliary refrigerant fill with interior storage is charged to indoor evaporator to be reduced fast to make the temperature of indoor evaporator, thus indoor temperature is declined fast, therefore improve the refrigerating speed of air-conditioner.
In order to realize object of the present invention, the present invention also provides a kind of air-conditioner, comprise compressor unit, outdoor heat exchange unit, indoor heat exchange unit, indoor heat exchange unit has indoor evaporator, it is characterized in that, between outdoor heat exchange unit and indoor evaporator, be connected with throttling arrangement and fill with and magnetic valve with the auxiliary refrigerant be connected successively of throttling arrangement parallel connection, described throttling arrangement is opened when air-conditioner is started shooting, described magnetic valve opens when air-conditioner is started shooting and cuts out after scheduled time t1, after auxiliary refrigerant is filled in and passes through first to close throttling arrangement when air-conditioner is in refrigeration mode shutdown, close compressor unit is to prestore a part of refrigerant.
Correspondingly, the present invention also provides a kind of control method of air-conditioner, and described air-conditioner comprises compressor unit, outdoor unit and indoor unit, and indoor unit has indoor evaporator and indoor fan, and the method comprises:
S210, detects the operational mode of air-conditioner during air-conditioner start;
S220, when refrigeration mode, open throttling arrangement and magnetic valve and after air-conditioner runs the scheduled time t1 shut electromagnetic valve; And
S230, after refrigeration mode air-conditioner receives off signal, first close throttling arrangement and after scheduled time t2 again close compressor unit store a part of refrigerant to fill with at auxiliary refrigerant, for entering indoor evaporator heat exchange through magnetic valve when start is at refrigeration mode next time at air-conditioner.
Preferably, the control method of described air-conditioner, also comprises:
S240, when heating mode, opens throttling arrangement and makes magnetic valve be in closed condition;
S250, after heating mode air-conditioner receives off signal, simultaneously close compressor unit and throttling arrangement are to block mixing of indoor refrigerant and outdoor refrigerant.
Because air-conditioner of the present invention and control method are when refrigeration mode, refrigerant in outdoor heat exchange unit enters indoor evaporator and room air heat exchange through throttling arrangement, refrigerant simultaneously in auxiliary refrigerant filling is charged to indoor evaporator and room air heat exchange by magnetic valve fast repairing, thus increase the cold medium flux entering indoor evaporator, this makes indoor temperature decline fast, therefore improves the refrigerating speed of air-conditioner.
Accompanying drawing explanation
Fig. 1 is the structural representation of first embodiment of the invention air-conditioner;
Fig. 2 is the flow chart of the control method of first embodiment of the invention air-conditioner;
Fig. 3 fills with at auxiliary refrigerant the flow chart storing a part of refrigerant when being the shutdown of first embodiment of the invention air-conditioner;
Fig. 4 is the structural representation of second embodiment of the invention air-conditioner;
Fig. 5 is the flow chart of the control method of second embodiment of the invention air-conditioner.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of air-conditioner, consult Fig. 1, there is disclosed the first embodiment of air-conditioner of the present invention, in the present embodiment, this air-conditioner comprises compressor unit 10, outdoor heat exchange unit 20, indoor heat exchange unit 30, cross valve 40 and refrigerant collector unit 50.
Compressor unit 10 is for compressing refrigerant, and it comprises compressor and gas-liquid separator, and the course of work that compressor unit 10 pairs of refrigerants compress known by the technology people of this area, illustrates at this no longer in detail.This compressor unit 10 has import 11 and outlet 12.
Outdoor heat exchange unit 20 carries out heat exchange for refrigerant and outdoor air, thus when refrigerating state to outdoor air release heat or when heating state absorption of air heat outdoor, this outdoor heat exchange unit 20 has the first outer machine port 21 and the second outer machine port 22.
Indoor heat exchange unit 30 has indoor evaporator 31 and indoor fan 32.Indoor evaporator 31 for room air carry out heat exchange with when refrigerating state indoor absorption of air heat or when heating state to room air release heat, this indoor evaporator 31 to have in first machine port 34 in machine port 33 and second.Indoor fan 32 accelerates the heat exchange of indoor evaporator 31 and room air by room air is blowed to indoor evaporator 31.
Cross valve 40 has four ports, and it is connected with machine port 33 in the import 11 and first of the first outer machine port 21 and indoor evaporator 31 that export 12 and outdoor heat exchange unit 20 of compressor unit 10 respectively.
Refrigerant collector unit 50 has auxiliary refrigerant filling 51, throttling arrangement 52 and magnetic valve 53.Second outer machine port 22 of the outer heat exchange unit 20 of one end junction chamber of throttling arrangement 52, its other end connects auxiliary refrigerant and fills with 51; One end of magnetic valve 53 connects auxiliary refrigerant and fills with 51, its other end connect indoor evaporator 31 second in machine port 34, thus throttling arrangement 52, auxiliary refrigerant fill with 51 and magnetic valve 53 connect successively after be connected to outdoor heat exchange unit 20 and indoor heat exchange unit 30 indoor evaporator 31 between.
When air-conditioner start is in refrigeration mode, opens throttling arrangement 52 and magnetic valve 53 and enter indoor evaporator 31 and room air heat exchange to make the auxiliary refrigerant refrigerant of filling with in 51; Enter compressor unit 10 to the refrigerant after room air heat exchange through the port that cross valve 40 is corresponding, refrigerant through compressor unit 10 compression and become the refrigerant of HTHP; The refrigerant of HTHP enters outdoor heat exchange unit 20 through the corresponding port of cross valve 40 and carries out condensing cooling and the refrigerant that becomes temperature in high pressure; In high pressure, the refrigerant of temperature becomes the refrigerant of low-temp low-pressure again through throttling arrangement 52; The refrigerant of low-temp low-pressure enters indoor evaporator 31 and room air heat exchange by auxiliary refrigerant filling 51, magnetic valve 53 more successively; Then refrigerant enters compressor unit 10 again and completes a kind of refrigeration cycle.When shutting down, first shut electromagnetic valve 53 and after the scheduled time T1 close compressor unit 10 again, thus a part of refrigerant is stored in advance in auxiliary refrigerant filling 51, be introduced into indoor evaporator 31 heat exchange with the refrigerant making auxiliary refrigerant fill with in 51 when air-conditioner start next time in advance through magnetic valve 53, thus improve the refrigerating speed of air-conditioner.
When air-conditioner start is in heating mode, open throttling arrangement 52 and magnetic valve 53, enter indoor evaporator 31 from the refrigerant of compressor unit 10 HTHP out through the corresponding port of cross valve 40 and carry out condensing cooling and the refrigerant that becomes temperature high pressure; In high pressure, the refrigerant of temperature is by magnetic valve 53, auxiliary refrigerant fill with 51, throttling arrangement 52 becomes low-temp low-pressure refrigerant; The refrigerant of low-temp low-pressure enters outdoor heat exchange unit 20 and outdoor air heat exchange; Then refrigerant returns compressor unit 10 through the corresponding port of cross valve 40 and completes one and heat circulation.When shutting down, first close compressor unit 10 and shut electromagnetic valve 53 mix with outdoor refrigerant with the refrigerant blocked in indoor evaporator 31, close again after making indoor fan 32 still run scheduled time T2 to make the refrigerant in indoor evaporator 31 still carry out heat exchange with room air simultaneously, be utilized effectively to make the waste heat of refrigerant in indoor evaporator 31 be taken to indoor by indoor fan 32.
Due to, the present embodiment air-conditioner is filled with in 51 by auxiliary refrigerant when refrigeration mode shuts down and is stored a part of refrigerant in advance, indoor evaporator 31 heat exchange is entered through magnetic valve 53 to make auxiliary refrigerant fill with refrigerant in 51 when air-conditioner start next time, this refrigerant fast repairing making auxiliary refrigerant fill with storage in 51 is charged to indoor evaporator 31 to be reduced fast to make the temperature of indoor evaporator 31, thus indoor temperature is declined fast, therefore improve the refrigerating speed of air-conditioner.In addition air-conditioner is when heating mode shuts down, mixed with outdoor refrigerant with the refrigerant blocked in indoor evaporator 31 by first close compressor unit 10 and magnetic valve 53, then close chamber's inner blower 32 is taken to indoor to make the waste heat of refrigerant in indoor evaporator 31 by indoor fan 32, this is avoided the loss of refrigerant heat in indoor evaporator 31, effectively make use of waste heat.
Refer to Fig. 2, correspondingly, there is disclosed the control method of first embodiment of the invention air-conditioner, comprising:
S110, air-conditioner opens throttling arrangement 52 and magnetic valve 53 after receiving starting-up signal;
S120, after refrigeration mode air-conditioner receives off signal, first shut electromagnetic valve 53 and after scheduled time T1 again close compressor unit 10 store a part of refrigerant to fill with 51 at auxiliary refrigerant, for being introduced into indoor evaporator 31 heat exchange in advance through magnetic valve 53 when start is at refrigeration mode next time at air-conditioner; And
S130, air-conditioner is after heating mode receives off signal, and close compressor unit 10 and magnetic valve 53 mix with outdoor refrigerant with the refrigerant blocked in indoor evaporator 31 simultaneously.
Refer to Fig. 3, in the step s 120, in order to make filling with 51 at auxiliary refrigerant, to store the temperature of refrigerants unlikely too high, and with can heat exchange faster and improve heat exchange efficiency after making the auxiliary refrigerant refrigerant of filling with in 51 enter indoor evaporator 31 when air-conditioner start next time, this step S120 be specially:
S121, after refrigeration mode air-conditioner receives off signal, air-conditioner detects delivery temperature and delivery temperature and predetermined value is compared;
S122, when delivery temperature is not more than predetermined value, first shut electromagnetic valve 53 and after scheduled time T1 again close compressor unit 10 store a part of refrigerant to fill with 51 at auxiliary refrigerant, for being introduced into indoor evaporator 31 heat exchange in advance through magnetic valve 53 when start is at refrigeration mode next time at air-conditioner;
S123, when delivery temperature is greater than predetermined value, reduces the running frequency of compressor unit 10 to reduce delivery temperature, then performs step S121; Certainly, the degree that also can depart from predetermined value according to delivery temperature makes compressor unit 10 reduce different running frequencies, and detect delivery temperature, when delivery temperature is not more than predetermined value, more first shut electromagnetic valve 53 and after the scheduled time T2 close compressor unit 10 store a part of refrigerant to fill with 51 at auxiliary refrigerant.
In step s 130, which, for improving the waste heat of refrigerant and the heat exchange efficiency of room air in indoor evaporator 31, after close compressor unit 10 and magnetic valve 53, indoor fan 32 is still made to run scheduled time T3.
Control method due to the present embodiment air-conditioner is filled with in 51 at auxiliary refrigerant in advance when refrigeration mode shuts down and is stored a part of refrigerant, to be introduced into indoor evaporator 31 heat exchange in advance through magnetic valve 53 when start is at refrigeration mode next time at air-conditioner, this refrigerant energy fast repairing making auxiliary refrigerant fill with storage in 51 is charged to indoor evaporator 31 to be reduced fast to make the temperature of indoor evaporator 31, thus indoor temperature is declined fast, therefore improve the refrigerating speed of air-conditioner.During this external heating mode shutdown, mixed with outdoor refrigerant with the refrigerant blocked in indoor evaporator 31 by first close compressor unit 10 and magnetic valve 53, still indoor are released to make the waste heat of refrigerant in indoor evaporator 31, this is avoided the loss of refrigerant heat in indoor evaporator 31, effectively make use of waste heat.
Refer to Fig. 4, there is disclosed the second embodiment of air-conditioner of the present invention, the air-conditioner of the present embodiment is similar to the air-conditioner of the first embodiment, and its difference is: throttling arrangement 52 be connected to the second outer machine port 22 of outdoor heat exchange unit 20 and indoor evaporator 31 second between machine port 34; Auxiliary refrigerant is filled with 51 and is connected between the second outer machine port 22 of outdoor heat exchange unit 20 and magnetic valve 53, and magnetic valve 53 is also connected with machine port 34 in second of indoor evaporator 31.
When air-conditioner start is in refrigeration mode, open throttling arrangement 52 and magnetic valve 53, refrigerant in outdoor heat exchange unit 20 enters indoor evaporator 31 and room air heat exchange through throttling arrangement 52, and the refrigerant that auxiliary refrigerant is filled with in 51 is simultaneously charged to indoor evaporator 31 and room air heat exchange by magnetic valve 53 fast repairing; Refrigerant enters compressor unit 10 to after room air heat exchange through the port that cross valve 40 is corresponding in indoor evaporator 31, and refrigerant compresses through compressor unit 10 and becomes the refrigerant of HTHP; The refrigerant of HTHP enters through the corresponding port of cross valve 40 and carries out condensing cooling in outdoor heat exchange unit 20 and the refrigerant that becomes temperature in high pressure; The refrigerant that in high pressure, the refrigerant of temperature becomes low-temp low-pressure through throttling arrangement 52 again enter indoor evaporator 31 and with room air heat exchange; After air-conditioner start is in refrigeration mode operation scheduled time t1, shut electromagnetic valve 53, thus air-conditioner is run at existing refrigeration modes.When shutting down, first close throttling arrangement 52 and after the scheduled time t2 close compressor unit 10 again, thus compressor unit 10 makes a part of refrigerant enter auxiliary refrigerant filling 51 through outdoor heat exchange unit 20, enter indoor evaporator 31 with the refrigerant making auxiliary refrigerant fill with in 51 when air-conditioner start next time through magnetic valve 53, thus increase enter indoor evaporator 31 cold medium flux to improve the refrigerating speed of air-conditioner.
When air-conditioner start is in heating mode, open throttling arrangement 52 and make magnetic valve 53 be in closed condition, entering through the corresponding port of cross valve 40 from the refrigerant of compressor unit 10 HTHP out and carry out condensing cooling in indoor evaporator 31 and the refrigerant that becomes temperature high pressure; In high pressure, the refrigerant of temperature becomes the refrigerant of low-temp low-pressure by throttling arrangement 52; The refrigerant of low-temp low-pressure enters outdoor heat exchange unit 20 and outdoor air heat exchange; Then refrigerant returns compressor unit 10 through the corresponding port of cross valve 40 and completes one and heat circulation.When shutting down, close compressor unit 10 and throttling arrangement 52 mix with outdoor refrigerant with the refrigerant blocked in indoor evaporator 31 simultaneously, close to make the refrigerant in indoor evaporator 31 still carry out heat exchange with room air after making indoor fan 32 still run scheduled time t3 simultaneously.
Because the present embodiment air-conditioner is when refrigeration mode, refrigerant in outdoor heat exchange unit 20 enters indoor evaporator 31 and room air heat exchange through throttling arrangement 52, the refrigerant that auxiliary refrigerant is filled with in 51 is simultaneously charged to indoor evaporator 31 and room air heat exchange by magnetic valve 53 fast repairing, thus increase the cold medium flux entering indoor evaporator 31, this makes indoor temperature decline fast, therefore improves the refrigerating speed of air-conditioner.During this external heating mode shutdown, mixed with outdoor refrigerant with the refrigerant blocked in indoor evaporator 31 by first close compressor unit 10 and throttling arrangement 52, then close chamber's inner blower 32 is taken to indoor to make the waste heat of refrigerant in indoor evaporator 31 by indoor fan 32, this is avoided the loss of refrigerant heat in indoor evaporator 31, effectively make use of waste heat.
Refer to Fig. 5, correspondingly, there is disclosed the control method of second embodiment of the invention air-conditioner, comprising:
S210, detects the operational mode of air-conditioner during air-conditioner start;
S220, when refrigeration mode, opens throttling arrangement 52 and magnetic valve 53, and runs shut electromagnetic valve 53 after scheduled time t1 at air-conditioner;
S230, after refrigeration mode air-conditioner receives off signal, first close throttling arrangement 52 and after scheduled time t2 again close compressor unit 10 store a part of refrigerant to fill with 51 at auxiliary refrigerant, for entering indoor evaporator 31 heat exchange to increase the cold medium flux entering indoor evaporator 31 when next time, start was at refrigeration mode for air-conditioner through magnetic valve 53;
S240, when heating mode, opens throttling arrangement 52 and makes magnetic valve 53 be in closed condition;
S250, air-conditioner is after heating mode receives off signal, and simultaneously close compressor unit 10 and throttling arrangement 52 are to block mixing of indoor refrigerant and outdoor refrigerant.
In step s 250, be the waste heat of refrigerant in raising indoor evaporator 31 and the heat exchange efficiency of room air, after close compressor unit 10 and magnetic valve 53, still make indoor fan 32 run scheduled time t3.
Because the control method of the present embodiment air-conditioner is when refrigeration mode, refrigerant in outdoor heat exchange unit 20 enters indoor evaporator 31 and room air heat exchange through throttling arrangement 52, the refrigerant that auxiliary refrigerant is filled with in 51 is simultaneously charged to indoor evaporator 31 and room air heat exchange by magnetic valve 53 fast repairing, thus increase the cold medium flux entered in indoor evaporator 31, this can make indoor temperature decline fast, therefore improves the refrigerating speed of air-conditioner.During this external heating mode shutdown, mixed with outdoor refrigerant with the refrigerant blocked in indoor evaporator 31 by first close compressor unit 10 and throttling arrangement 52, still indoor are released to make the waste heat of refrigerant in indoor evaporator 31, this is avoided the loss of refrigerant heat in indoor evaporator 31, effectively make use of waste heat.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (9)
1. an air-conditioner, comprise compressor unit, outdoor heat exchange unit and indoor heat exchange unit, described indoor heat exchange unit has indoor evaporator, it is characterized in that, the throttling arrangement connected successively, auxiliary refrigerant filling and magnetic valve is connected with between outdoor heat exchange unit and indoor evaporator, described throttling arrangement and magnetic valve are opened when air-conditioner is started shooting, and described auxiliary refrigerant is filled with and to be used for when refrigeration mode shuts down by first shut electromagnetic valve and then close compressor unit to prestore a part of refrigerant;
After heating mode air-conditioner receives off signal, described compressor unit and magnetic valve are closed simultaneously, mix with outdoor refrigerant with the refrigerant blocked in indoor evaporator;
Described air-conditioner also comprises cross valve, and described cross valve has four ports, is connected respectively with machine port in first of the import of compressor unit and the first outer machine port of outlet and outdoor heat exchange unit and indoor evaporator.
2. a control method for air-conditioner, described air-conditioner comprises compressor unit, outdoor unit and indoor unit, and described indoor unit has indoor evaporator and indoor fan, it is characterized in that, the method comprises:
S110, between outdoor unit and indoor evaporator, connect the throttling arrangement connected successively, auxiliary refrigerant filling and magnetic valve, air-conditioner opens throttling arrangement and magnetic valve after receiving starting-up signal; And
S120, after refrigeration mode air-conditioner receives off signal, close compressor unit stores a part of refrigerant to fill with at auxiliary refrigerant again by first shut electromagnetic valve and after scheduled time T1, for being introduced into indoor evaporator heat exchange in advance through magnetic valve when start is at refrigeration mode next time at air-conditioner;
S130, after heating mode air-conditioner receives off signal, close compressor unit and magnetic valve mix with outdoor refrigerant with the refrigerant blocked in indoor evaporator simultaneously.
3. the control method of air-conditioner as claimed in claim 2, it is characterized in that, described step S120 is specially:
S121, after refrigeration mode air-conditioner receives off signal, air-conditioner detects delivery temperature and delivery temperature and predetermined value is compared;
S122, when delivery temperature is not more than predetermined value, first shut electromagnetic valve and after scheduled time T1 again close compressor unit store a part of refrigerant to fill with at auxiliary refrigerant, for being introduced into indoor evaporator heat exchange in advance through magnetic valve when start is at refrigeration mode next time at air-conditioner; And
S123, when delivery temperature is greater than predetermined value, reduces the running frequency of compressor unit to reduce delivery temperature, then performs step S121.
4. the control method of air-conditioner as claimed in claim 2, it is characterized in that, described step S120 is specially:
S121, after refrigeration mode air-conditioner receives off signal, air-conditioner detects delivery temperature and delivery temperature and predetermined value is compared;
S122, when delivery temperature is not more than predetermined value, first shut electromagnetic valve and after scheduled time T1 again close compressor unit store a part of refrigerant to fill with at auxiliary refrigerant, for being introduced into indoor evaporator heat exchange in advance through magnetic valve when start is at refrigeration mode next time at air-conditioner; And
S123, when delivery temperature is greater than predetermined value, reduce the running frequency of compressor unit to reduce delivery temperature, and detect delivery temperature, when delivery temperature is not more than predetermined value, more first shut electromagnetic valve and after the scheduled time T2 close compressor unit store a part of refrigerant to fill with at auxiliary refrigerant.
5. the control method of air-conditioner as claimed in claim 4, it is characterized in that, in described step S123, the degree departing from predetermined value according to delivery temperature makes compressor unit reduce different running frequencies.
6. the control method of air-conditioner as claimed in claim 2, is characterized in that, in described step S130, still makes indoor fan run scheduled time T3 after close compressor unit and magnetic valve.
7. an air-conditioner, comprise compressor unit, outdoor heat exchange unit, indoor heat exchange unit, indoor heat exchange unit has indoor evaporator, it is characterized in that, between outdoor heat exchange unit and indoor evaporator, be connected with throttling arrangement and fill with and magnetic valve with the auxiliary refrigerant be connected successively of throttling arrangement parallel connection, described throttling arrangement is opened when air-conditioner is started shooting, described magnetic valve opens when air-conditioner is started shooting and cuts out after scheduled time t1, after auxiliary refrigerant is filled in and passes through first to close throttling arrangement when air-conditioner is in refrigeration mode shutdown, close compressor unit is to prestore a part of refrigerant,
Described air-conditioner also comprises cross valve, and described cross valve has four ports, and it is connected with machine port in first of the import of compressor unit and the first outer machine port of outlet and outdoor heat exchange unit and indoor evaporator respectively.
8. a control method for air-conditioner, described air-conditioner comprises compressor unit, outdoor unit and indoor unit, and indoor unit has indoor evaporator and indoor fan, it is characterized in that, the method comprises:
S210, detects the operational mode of air-conditioner during air-conditioner start;
S220, when refrigeration mode, open throttling arrangement and magnetic valve and after air-conditioner runs the scheduled time t1 shut electromagnetic valve; And
S230, after refrigeration mode air-conditioner receives off signal, first close throttling arrangement and after scheduled time t2 again close compressor unit store a part of refrigerant to fill with at auxiliary refrigerant, for entering indoor evaporator heat exchange through magnetic valve when start is at refrigeration mode next time at air-conditioner.
9. the control method of air-conditioner as claimed in claim 8, is characterized in that, also comprise:
S240, when heating mode, opens throttling arrangement and makes magnetic valve be in closed condition;
S250, after heating mode air-conditioner receives off signal, simultaneously close compressor unit and throttling arrangement are to block mixing of indoor refrigerant and outdoor refrigerant.
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| CN106556120A (en) * | 2016-12-01 | 2017-04-05 | 芜湖美智空调设备有限公司 | The control method and device of air-conditioner and air-conditioner |
| CN111720979B (en) * | 2020-06-16 | 2021-11-05 | 海信（山东）空调有限公司 | Air conditioner and energy-saving control method thereof |
| CN114440392B (en) * | 2022-02-25 | 2023-10-27 | 海信空调有限公司 | Air conditioner and air conditioner control method |
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