CN107543283A - A kind of control method of air conditioner, control system and air conditioner - Google Patents
A kind of control method of air conditioner, control system and air conditioner Download PDFInfo
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- CN107543283A CN107543283A CN201710712136.9A CN201710712136A CN107543283A CN 107543283 A CN107543283 A CN 107543283A CN 201710712136 A CN201710712136 A CN 201710712136A CN 107543283 A CN107543283 A CN 107543283A
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- air conditioner
- aperture
- preheating
- throttle part
- compressor
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Abstract
The present invention proposes a kind of control method of air conditioner, control system and air conditioner, and air conditioner includes：Outdoor unit, compressor and throttle part, control method include：After compressor start, control throttle part is adjusted to preheat aperture, and continues the first preset time；Whether real-time judge air conditioner reaches preheating termination condition；When air conditioner reaches preheating termination condition, the aperture of throttle part is adjusted according to the operational factor of air conditioner；When air conditioner not up to preheats termination condition, return continues to control throttle part to keep preheating aperture.The control method of air conditioner provided by the invention, by the aperture for adjusting throttle part, and then efficiently solve air conditioner and carry out at different ambient temperatures in low-temperature heating start-up course, the problem of due to quick heating startup and then causing excessively with liquid, improve air conditioner reliability of operation.
Description
Technical field
The present invention relates to technical field of air conditioner, control method and control in particular to a kind of air conditioner
System, a kind of air conditioner.
Background technology
It is cold because system is larger in low-temperature heating start-up course for multi-connected machine heat pump type air conditioning system in correlation technique
Matchmaker is more, refrigerant soak often be present, and conventional startup program often sets a fixed startup throttle part
Aperture, it is poor for the start-up course adaptability at a temperature of varying environment, i.e., on the one hand it can not ensure that system is effective well
The band liquid process that refrigerant soak starts is placed, on the other hand fixed aperture is also unfavorable for soon for changeable environment temperature
Speed starts.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art or correlation technique.
Therefore, the one side of invention is to propose a kind of control method of air conditioner.
Another aspect of the present invention is to propose a kind of control system of air conditioner.
The third aspect of the invention proposes a kind of air conditioner.
In view of this, according to an aspect of the present invention, it is proposed that a kind of control method of air conditioner, air conditioner include：
Outdoor unit, compressor and throttle part, control method include：After compressor start, control throttle part is adjusted to preheating and opened
Degree, and continue the first preset time；Whether real-time judge air conditioner reaches preheating termination condition；Terminate when air conditioner reaches preheating
During condition, the aperture of throttle part is adjusted according to the operational factor of air conditioner；When air conditioner not up to preheats termination condition, return
Return and continue to control throttle part to keep preheating aperture.
The control method of air conditioner provided by the invention, after compressor starting up, first, control throttle part adjustment
Operated to preheating aperture, and continue the first preset time, wherein, preheating aperture is the environment temperature according to residing for air conditioner
Degree is set, by controlling throttle part to default aperture, improve air conditioner start at different ambient temperatures it is suitable
Ying Xing, and then the deposition that effectively prevent refrigerant causes the band liquid process of startup, is more beneficial for the quick startup of air conditioner；Enter
One step, whether real-time judge air conditioner reaches the condition that preheating terminates, when air conditioner reaches preheating termination condition, Ke Yigen
The aperture of throttle part is adjusted according to the operational factor of air conditioner, and when air conditioner not up to preheats termination condition, it is necessary to continue
Throttle part is controlled to keep preheating aperture, untill band liquid process terminates, by judging whether air conditioner warm terminates,
And then the aperture of throttle part is controlled by the operational factor of air conditioner so that air conditioner is according to system for different negative
Lotus operates, and adjusts its demand to different flow.Air conditioning control method provided by the invention, the environment temperature according to residing for air conditioner
Degree carries out setting preheating aperture, by controlling throttle part to improve air conditioner to default aperture and open at different ambient temperatures
Dynamic adaptability, and then the deposition that effectively prevent refrigerant causes the band liquid process of startup, is more beneficial for the quick of air conditioner
Start；By judging whether air conditioner warm terminates, and then the aperture by the operational factor of air conditioner to throttle part
It is controlled so that air conditioner operates according to system for different load, adjusts its demand to different flow, improves air-conditioning
The reliability and adaptability of device overall operation.
According to the control method of the above-mentioned air conditioner of the present invention, there can also be following technical characteristic：
In the above-mentioned technical solutions, it is preferable that judge the step of whether air conditioner reaches preheating termination condition, specific bag
Include：The discharge superheat of compressor is obtained in real time；When discharge superheat reaches preset temperature, then air conditioner reaches preheating and terminated
Condition；Or when the accumulated running time of compressor reaching the second preset time, then air conditioner reaches preheating termination condition.
In the technical scheme, on the one hand, judge whether air conditioner reaches pre- thermojunction by the discharge superheat of compressor
Beam condition, in start-up course, the discharge superheat of compressor can be gradually increasing, i.e., according to the exhaust for obtaining compressor in real time
Temperature, when discharge superheat reaches preset temperature, represent that air conditioner reaches preheating termination condition.On the one hand, compressor is passed through
Accumulated running time, judge whether air conditioner reaches preheating termination condition, reach second when the accumulated running time of compressor
Preset time, represent that air conditioner reaches preheating termination condition.Specifically, preset temperature and the second preset time can be according to multiple examinations
Acquisition is tested, has reached the optimum state of air conditioner operation；Certainly judge whether air conditioner reaches preheating termination condition and do not limit to
In this.
In any of the above-described technical scheme, it is preferable that when air conditioner reaches preheating termination condition, according to the fortune of air conditioner
The step of aperture of row parameter regulation throttle part, specifically include：Operational factor is the delivery temperature of compressor；Throttle part
Aperture is proportional with delivery temperature.
In the technical scheme, the operational factor of air conditioner is the delivery temperature of compressor, according to the change of delivery temperature
The aperture of throttle part is controlled, delivery temperature is directly proportional to the aperture of throttle part in the running of air conditioner, therefore when pressure
The delivery temperature rise of contracting machine, then increase the aperture of throttle part, when the delivery temperature reduction of compressor, then reduce throttle part
Aperture.By automatically adjusting the aperture of throttle part according to the exhaust gas temperature change of compressor, and then it is adapted to air conditioner
When different load operates, the demand of different flow, makes air conditioner reach optimal running status.
In any of the above-described technical scheme, it is preferable that when air conditioner reaches preheating termination condition, according to the fortune of air conditioner
The step of aperture of row parameter regulation throttle part, specifically include：Operational factor is the discharge superheat of compressor；Throttle part
Aperture and discharge superheat it is proportional.
In the technical scheme, the operational factor of air conditioner is the discharge superheat of compressor, according to discharge superheat
The aperture of change control throttle part, discharge superheat is directly proportional to the aperture of throttle part in the running of air conditioner,
Therefore when the discharge superheat of compressor raises, then the aperture of increase throttle part, when the discharge superheat reduction of compressor, then subtracts
The aperture of small restriction part.By automatically adjusting the aperture of throttle part, Jin Erke according to the change of the discharge superheat of compressor
To adapt to the demand of air conditioner different flow when different load operates, air conditioner is set to reach optimal running status.
In any of the above-described technical scheme, it is preferable that the span of preset temperature is：8 DEG C to 12 DEG C；Second it is default when
Between span be：28min to 32min.
In the technical scheme, judge whether air conditioner reaches preheating termination condition, when the discharge superheat of compressor reaches
To in the range of 8 DEG C to 12 DEG C, represent that air conditioner reaches preheating termination condition.Or when the accumulated running time of compressor reaches
In the range of 28min to 32min, also illustrate that air conditioner reaches preheating termination condition.
In any of the above-described technical scheme, it is preferable that before the step of controlling throttle part to be adjusted to preheat aperture, also
Including：It is determined that preheating aperture.
In the technical scheme, under the holding state of air conditioner, first, determine that throttle part preheats aperture, make air-conditioning
After device starts, control throttle part is adjusted to preheating aperture and operated, by controlling throttle part to be improved to default aperture
The adaptability that air conditioner starts at different ambient temperatures, and then the deposition that effectively prevent refrigerant causes the band liquid mistake of startup
Journey, it is more beneficial for the quick startup of air conditioner.
In any of the above-described technical scheme, it is preferable that it is determined that the step of preheating aperture, is specifically included：Obtain outdoor unit
The environment temperature at place；Preset temperature section corresponding with preheating aperture is set；The preset temperature area according to corresponding to environment temperature
Between, it is determined that preheating aperture.
In the technical scheme, different temperature ranges is set according to different preheating apertures, so further according to acquisition room
The environment temperature at the place of outer machine is assured that the opening value of throttle part, is opened so as to control throttle part to be adjusted to preheating
Degree so that air conditioner at different ambient temperatures Low Temperature Thermal start-up course when, set according to different outdoor environment temperature different
Throttle part preheating aperture, and then air conditioner is quickly entered steady operational status, and then effectively prevent refrigerant
Deposition cause start band liquid process, be more beneficial for the quick startup of air conditioner.
According to another aspect of the present invention, it is proposed that a kind of control system of air conditioner, air conditioner include：Outdoor unit,
Compressor and throttle part, control system include：First control unit, for when the compressor start after, control throttle part to be adjusted
It is whole to arrive preheating aperture, and continue the first preset time；Judging unit, terminate bar for whether real-time judge air conditioner to reach preheating
Part；Second control unit, for when air conditioner reaches preheating termination condition, restriction to be adjusted according to the operational factor of air conditioner
The aperture of part；Second control unit, it is additionally operable to when air conditioner not up to preheats termination condition, return continues to control throttle part
Keep preheating aperture.
The control system of air conditioner provided by the invention, after compressor starting up, first, control throttle part adjustment
Operated to preheating aperture, and continue the first preset time, wherein, preheating aperture is the environment temperature according to residing for air conditioner
Degree is set, by controlling throttle part to default aperture, improve air conditioner start at different ambient temperatures it is suitable
Ying Xing, and then the deposition that effectively prevent refrigerant causes the band liquid process of startup, is more beneficial for the quick startup of air conditioner；Enter
One step, whether real-time judge air conditioner reaches the condition that preheating terminates, when air conditioner reaches preheating termination condition, Ke Yigen
The aperture of throttle part is adjusted according to the operational factor of air conditioner, and when air conditioner not up to preheats termination condition, it is necessary to continue
Throttle part is controlled to keep preheating aperture, untill band liquid process terminates, by judging whether air conditioner warm terminates,
And then the aperture of throttle part is controlled by the operational factor of air conditioner so that air conditioner is according to system for different negative
Lotus operates, and adjusts its demand to different flow.Air conditioning control method provided by the invention, the environment temperature according to residing for air conditioner
Degree carries out setting preheating aperture, by controlling throttle part to improve air conditioner to default aperture and open at different ambient temperatures
Dynamic adaptability, and then the deposition that effectively prevent refrigerant causes the band liquid process of startup, is more beneficial for the quick of air conditioner
Start；By judging whether air conditioner warm terminates, and then the aperture by the operational factor of air conditioner to throttle part
It is controlled so that air conditioner operates according to system for different load, adjusts its demand to different flow, improves air-conditioning
The reliability and adaptability of device overall operation.According to the control system of the above-mentioned air conditioner of the present invention, there can also be following skill
Art feature：
In the above-mentioned technical solutions, it is preferable that judging unit, specifically include：First acquisition unit, for obtaining pressure in real time
The discharge superheat of contracting machine；First determining unit, for when discharge superheat reaches preset temperature, then air conditioner to reach preheating
Termination condition；Or second determining unit, when the accumulated running time for being opened when compressor reaches the second preset time, then air-conditioning
Device reaches preheating termination condition.
In the technical scheme, on the one hand, judge whether air conditioner reaches pre- thermojunction by the discharge superheat of compressor
Beam condition, in start-up course, the discharge superheat of compressor can be gradually increasing, i.e., according to the exhaust for obtaining compressor in real time
Temperature, when discharge superheat reaches preset temperature, represent that air conditioner reaches preheating termination condition.On the one hand, compressor is passed through
Accumulated running time, judge whether air conditioner reaches preheating termination condition, reach second when the accumulated running time of compressor
Preset time, represent that air conditioner reaches preheating termination condition.Specifically, preset temperature and the second preset time can be according to multiple examinations
Acquisition is tested, has reached the optimum state of air conditioner operation；Certainly judge whether air conditioner reaches preheating termination condition and do not limit to
In this.
In any of the above-described technical scheme, it is preferable that operational factor is the delivery temperature of compressor；The aperture of throttle part
It is proportional with delivery temperature.
In the technical scheme, the operational factor of air conditioner is the delivery temperature of compressor, according to the change of delivery temperature
The aperture of throttle part is controlled, delivery temperature is directly proportional to the aperture of throttle part in the running of air conditioner, therefore when pressure
The delivery temperature rise of contracting machine, then increase the aperture of throttle part, when the delivery temperature reduction of compressor, then reduce throttle part
Aperture.By automatically adjusting the aperture of throttle part according to the exhaust gas temperature change of compressor, and then it is adapted to air conditioner
When different load operates, the demand of different flow, makes air conditioner reach optimal running status.
In any of the above-described technical scheme, it is preferable that operational factor is the discharge superheat of compressor；Throttle part is opened
Degree is proportional with discharge superheat.
In the technical scheme, the operational factor of air conditioner is the discharge superheat of compressor, according to discharge superheat
The aperture of change control throttle part, discharge superheat is directly proportional to the aperture of throttle part in the running of air conditioner,
Therefore when the discharge superheat of compressor raises, then the aperture of increase throttle part, when the discharge superheat reduction of compressor, then subtracts
The aperture of small restriction part.By automatically adjusting the aperture of throttle part, Jin Erke according to the change of the discharge superheat of compressor
To adapt to the demand of air conditioner different flow when different load operates, air conditioner is set to reach optimal running status.
In any of the above-described technical scheme, it is preferable that the span of preset temperature is：8 DEG C to 12 DEG C；Second it is default when
Between span be：28min to 32min.
In the technical scheme, judge whether air conditioner reaches preheating termination condition, when the discharge superheat of compressor reaches
To in the range of 8 DEG C to 12 DEG C, represent that air conditioner reaches preheating termination condition.Or when the accumulated running time of compressor reaches
In the range of 28min to 32min, also illustrate that air conditioner reaches preheating termination condition.
In any of the above-described technical scheme, it is preferable that before the step of controlling throttle part to be adjusted to preheat aperture, also
Including：Second determining unit, for determining to preheat aperture.
In the technical scheme, under the holding state of air conditioner, first, determine that throttle part preheats aperture, make air-conditioning
After device starts, control throttle part is adjusted to preheating aperture and operated, by controlling throttle part to be improved to default aperture
The adaptability that air conditioner starts at different ambient temperatures, and then the deposition that effectively prevent refrigerant causes the band liquid mistake of startup
Journey, it is more beneficial for the quick startup of air conditioner.In any of the above-described technical scheme, it is preferable that the second determining unit, specific bag
Include：Second acquisition unit, the environment temperature at the place for obtaining outdoor unit；Setting unit, for setting and preheating aperture pair
The preset temperature section answered；3rd determining unit, for the preset temperature section according to corresponding to environment temperature, it is determined that preheating is opened
Degree.In the technical scheme, different temperature ranges is set according to different preheating apertures, so further according to acquisition outdoor unit
The environment temperature at place is assured that the opening value of throttle part, so as to control throttle part to be adjusted to preheat aperture so that
Air conditioner at different ambient temperatures Low Temperature Thermal start-up course when, different restrictions is set according to different outdoor environment temperature
The preheating aperture of part, and then air conditioner is quickly entered steady operational status, and then the deposition that effectively prevent refrigerant is led
The band liquid process started is caused, is more beneficial for the quick startup of air conditioner.According to a further aspect of the invention, it is proposed that Yi Zhongkong
Device is adjusted, includes the control system of the air conditioner of any of the above-described.
Air conditioner provided by the invention includes the control system of air conditioner, after compressor starting up, first, control section
Stream unit is adjusted to preheating aperture and operated, and continues the first preset time, wherein, preheating aperture is according to air conditioner institute
What the environment temperature at place was set, by controlling throttle part to improve air conditioner in varying environment temperature to default aperture
The adaptability of lower startup, and then the deposition that effectively prevent refrigerant causes the band liquid process of startup, is more beneficial for air conditioner
It is quick to start；Further, whether real-time judge air conditioner reaches the condition that preheating terminates, and terminates bar when air conditioner reaches preheating
During part, the aperture of throttle part can be adjusted according to the operational factor of air conditioner, and when air conditioner not up to preheats termination condition
When, it is necessary to continue control throttle part keep preheating aperture, until band liquid process terminate untill, by judging that air conditioner is preheated
Whether journey terminates, and then the aperture of throttle part is controlled by the operational factor of air conditioner so that air conditioner is according to being
System operates for different load, adjusts its demand to different flow.Air conditioning control method provided by the invention, according to air conditioner
Residing environment temperature carries out setting preheating aperture, by controlling throttle part to improve air conditioner in difference to default aperture
The adaptability started under environment temperature, and then the deposition that effectively prevent refrigerant causes the band liquid process of startup, is more beneficial for
The quick startup of air conditioner；By judging whether air conditioner warm terminates, and then by the operational factor of air conditioner to section
The aperture of stream unit is controlled so that air conditioner operates according to system for different load, adjusts its need to different flow
Ask, improve the reliability and adaptability of air conditioner overall operation.
The additional aspect and advantage of the present invention will become obvious in following description section, or the practice by the present invention
Recognize.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 shows the schematic flow sheet of the control method of the air conditioner of one embodiment of the present of invention；
Fig. 2 shows the schematic flow sheet of the control method of the air conditioner of an alternative embodiment of the invention；
Fig. 3 shows the schematic flow sheet of the control method of the air conditioner of yet another embodiment of the present invention；
Fig. 4 shows the schematic flow sheet of the control method of the air conditioner of another embodiment of the present invention；
Fig. 5 shows the schematic flow sheet of the control method of the air conditioner of another embodiment of the present invention；
Fig. 6 shows the schematic block diagram of the control system of the air conditioner of one embodiment of the present of invention；
Fig. 7 shows the schematic block diagram of the control system of the air conditioner of an alternative embodiment of the invention；
Fig. 8 shows the schematic block diagram of the control system of the air conditioner of yet another embodiment of the present invention；
Fig. 9 shows the schematic block diagram of the control system of the air conditioner of another embodiment of the present invention；
Figure 10 shows the environment temperature and preheating aperture comparative example figure of the specific embodiment of the present invention.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.Need to show, in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be different from other modes described here using other to implement, therefore, protection scope of the present invention is not limited to following public affairs
The limitation for the specific embodiment opened.
The embodiment of first aspect present invention, propose a kind of control method of air conditioner, outdoor unit, compressor and restriction
Part, Fig. 1 show the schematic flow sheet of the control method of the air conditioner of one embodiment of the present of invention.Wherein, this method includes：
Step 102, after compressor start, control throttle part is adjusted to preheat aperture, and continues the first preset time；
Step 104, whether real-time judge air conditioner reaches preheating termination condition；
Step 106, when air conditioner reaches preheating termination condition, throttle part is adjusted according to the operational factor of air conditioner
Aperture；
When air conditioner not up to preheats termination condition, return to step 102 continues to control throttle part to keep preheating aperture.
The control method of air conditioner provided by the invention, after compressor starting up, first, control throttle part adjustment
Operated to preheating aperture, and continue the first preset time, wherein, preheating aperture is the environment temperature according to residing for air conditioner
Degree is set, by controlling throttle part to default aperture, improve air conditioner start at different ambient temperatures it is suitable
Ying Xing, and then the deposition that effectively prevent refrigerant causes the band liquid process of startup, is more beneficial for the quick startup of air conditioner；Enter
One step, whether real-time judge air conditioner reaches the condition that preheating terminates, when air conditioner reaches preheating termination condition, Ke Yigen
The aperture of throttle part is adjusted according to the operational factor of air conditioner, and when air conditioner not up to preheats termination condition, it is necessary to continue
Throttle part is controlled to keep preheating aperture, untill band liquid process terminates, by judging whether air conditioner warm terminates,
And then the aperture of throttle part is controlled by the operational factor of air conditioner so that air conditioner is according to system for different negative
Lotus operates, and adjusts its demand to different flow.Air conditioning control method provided by the invention, the environment temperature according to residing for air conditioner
Degree carries out setting preheating aperture, by controlling throttle part to improve air conditioner to default aperture and open at different ambient temperatures
Dynamic adaptability, and then the deposition that effectively prevent refrigerant causes the band liquid process of startup, is more beneficial for the quick of air conditioner
Start；By judging whether air conditioner warm terminates, and then the aperture by the operational factor of air conditioner to throttle part
It is controlled so that air conditioner operates according to system for different load, adjusts its demand to different flow, improves air-conditioning
The reliability and adaptability of device overall operation.
Fig. 2 shows the schematic flow sheet of the control method of the air conditioner of an alternative embodiment of the invention.Wherein, the party
Method includes：
Step 202, after compressor start, control throttle part is adjusted to preheat aperture, and continues the first preset time；
Step 204, the discharge superheat of compressor is obtained in real time；
Step 206, judge whether the discharge superheat of compressor reaches preset temperature；
Step 208, when discharge superheat reaches preset temperature, then air conditioner reaches preheating termination condition；
Step 210, when air conditioner reaches preheating termination condition, throttle part is adjusted according to the operational factor of air conditioner
Aperture；
Step 212, when discharge superheat is not up to preset temperature, then air conditioner not up to preheats termination condition, returns
Step 202 continues to control throttle part to keep preheating aperture.
In the embodiment, judge whether air conditioner reaches preheating termination condition by the discharge superheat of compressor, opening
During dynamic, the discharge superheat of compressor can be gradually increasing, i.e., according to the discharge superheat for obtaining compressor in real time, work as exhaust
When the degree of superheat reaches preset temperature, represent that air conditioner reaches preheating termination condition.
Fig. 3 shows the schematic flow sheet of the control method of the air conditioner of yet another embodiment of the present invention.Wherein, the party
Method includes：
Step 302, after compressor start, control throttle part is adjusted to preheat aperture, and continues the first preset time；
Step 304, the accumulated running time of timing compressor；
Step 306, judge whether the accumulated running time of compressor reaches the second preset time；
Step 308, when the accumulated running time of compressor reaching the second preset time, then air conditioner reaches preheating and terminated
Condition；
Step 310, when air conditioner reaches preheating termination condition, throttle part is adjusted according to the operational factor of air conditioner
Aperture；
Step 312, when the accumulated running time of compressor being not up to the second preset time, then air conditioner not up to preheats
Termination condition, return to step 302 continue to control throttle part to keep preheating aperture.
In this embodiment, by the accumulated running time of compressor, judge whether air conditioner reaches preheating termination condition,
Reach the second preset time when the accumulated running time of compressor, represent that air conditioner reaches preheating termination condition.Specifically, preset
Temperature and the second preset time can obtain according to test of many times, reach the optimum state of air conditioner operation；Certainly air-conditioning is judged
Whether device, which reaches preheating termination condition, is not limited thereto.
In one embodiment of the invention, it is preferable that when air conditioner reaches preheating termination condition, according to air conditioner
Operational factor adjusts the step of aperture of throttle part, specifically includes：Operational factor is the delivery temperature of compressor；Throttle part
Aperture and delivery temperature it is proportional.
In this embodiment, the operational factor of air conditioner is the delivery temperature of compressor, according to the change control of delivery temperature
The aperture of throttle part processed, delivery temperature is directly proportional to the aperture of throttle part in the running of air conditioner, therefore when compression
The delivery temperature rise of machine, then increase the aperture of throttle part, when the delivery temperature reduction of compressor, then reduce throttle part
Aperture.By automatically adjusting the aperture of throttle part according to the exhaust gas temperature change of compressor, and then it is adapted to air conditioner and exists
The demand of different flow, makes air conditioner reach optimal running status when different load operates.
In one embodiment of the invention, it is preferable that when air conditioner reaches preheating termination condition, according to air conditioner
Operational factor adjusts the step of aperture of throttle part, specifically includes：Operational factor is the discharge superheat of compressor；Restriction
The aperture of part and discharge superheat are proportional.
In this embodiment, the operational factor of air conditioner is the discharge superheat of compressor, according to the change of discharge superheat
Change the aperture of control throttle part, discharge superheat is directly proportional to the aperture of throttle part in the running of air conditioner, therefore
When the discharge superheat of compressor raises, then the aperture of increase throttle part, when the discharge superheat reduction of compressor, then reduces
The aperture of throttle part.By automatically adjusting the aperture of throttle part according to the change of the discharge superheat of compressor, and then can be with
The demand of air conditioner different flow when different load operates is adapted to, air conditioner is reached optimal running status.In the present invention
One embodiment in, it is preferable that the span of preset temperature is：8 DEG C to 12 DEG C；The span of second preset time
For：28min to 32min.
In this embodiment, judge whether air conditioner reaches preheating termination condition, when the discharge superheat of compressor reaches 8
DEG C in the range of 12 DEG C, representing that air conditioner reaches preheating termination condition.Or when the accumulated running time of compressor reaches 28min
To 32min, also illustrate that air conditioner reaches preheating termination condition.
Fig. 4 shows the schematic flow sheet of the control method of the air conditioner of another embodiment of the present invention.Wherein, the party
Method includes：
Step 402, it is determined that preheating aperture.
Step 404, after compressor start, control throttle part is adjusted to preheat aperture, and continues the first preset time；
Step 406, whether real-time judge air conditioner reaches preheating termination condition；
Step 408, when air conditioner reaches preheating termination condition, throttle part is adjusted according to the operational factor of air conditioner
Aperture；
When air conditioner not up to preheats termination condition, return to step 404 continues to control throttle part to keep preheating aperture.
In this embodiment, under the holding state of air conditioner, first, determine that throttle part preheats aperture, make air conditioner
After startup, control throttle part is adjusted to preheating aperture and operated, by controlling throttle part to improve sky to default aperture
The adaptability for adjusting device to start at different ambient temperatures, and then the deposition that effectively prevent refrigerant causes the band liquid mistake of startup
Journey, it is more beneficial for the quick startup of air conditioner.Fig. 5 shows the control method of the air conditioner of another embodiment of the present invention
Schematic flow sheet.Wherein, this method includes：
Step 502, the environment temperature at the place of outdoor unit is obtained；
Step 504, preset temperature section corresponding with preheating aperture is set；The preset temperature area according to corresponding to environment temperature
Between, it is determined that preheating aperture；
Step 506, after compressor start, control throttle part is adjusted to preheat aperture, and continues the first preset time；
Step 508, whether real-time judge air conditioner reaches preheating termination condition；
Step 510, when air conditioner reaches preheating termination condition, throttle part is adjusted according to the operational factor of air conditioner
Aperture；
When air conditioner not up to preheats termination condition, return to step 506 and continue to control throttle part to keep preheating aperture.
In this embodiment, different temperature ranges is set according to different preheating apertures, it is so outdoor further according to obtaining
The environment temperature at the place of machine is assured that the opening value of throttle part, so as to control throttle part to be adjusted to preheat aperture,
So that air conditioner at different ambient temperatures Low Temperature Thermal start-up course when, different sections is set according to different outdoor environment temperature
The preheating aperture of stream unit, and then air conditioner is quickly entered steady operational status, and then effectively prevent the heavy of refrigerant
Product causes the band liquid process started, is more beneficial for the quick startup of air conditioner.The embodiment of second aspect of the present invention, it is proposed that one
The control system of kind air conditioner, air conditioner include：Outdoor unit, compressor and throttle part, Fig. 6 show the reality of the present invention
Apply the schematic block diagram of the control system of the air conditioner of example.Wherein, the system 600 includes：
First control unit 602, for when the compressor start after, control throttle part to be adjusted to preheat aperture, and continues
First preset time；
Judging unit 604, whether reach preheating termination condition for real-time judge air conditioner；
Second control unit 606, for when air conditioner reaches preheating termination condition, being adjusted according to the operational factor of air conditioner
The aperture of section section stream unit；
Second control unit 606, it is additionally operable to when air conditioner not up to preheats termination condition, return continues to control restriction
Part keeps preheating aperture.
The control system 600 of air conditioner provided by the invention, after compressor starting up, first, the first control unit
602 control throttle parts are adjusted to preheating aperture and operated, and continue the first preset time, wherein, preheating aperture is root
Set according to the environment temperature residing for air conditioner, by controlling throttle part to improve air conditioner not to default aperture
With the adaptability started under environment temperature, and then the deposition that effectively prevent refrigerant causes the band liquid process of startup, more favorably
In the quick startup of air conditioner；Further, whether the real-time judge air conditioner of judging unit 604 reaches the condition that preheating terminates,
When air conditioner reaches preheating termination condition, the second control unit 606 can adjust restriction according to the operational factor of air conditioner
The aperture of part, and when air conditioner not up to preheats termination condition, the second control unit 606 needs to continue to control throttle part to protect
Preheating aperture is held, untill band liquid process terminates, by judging whether air conditioner warm terminates, and then passes through air conditioner
Operational factor the aperture of throttle part is controlled so that air conditioner according to system for different load operate, adjust it
To the demand of different flow.Air conditioning control method provided by the invention, the environment temperature according to residing for air conditioner set pre-
Hot aperture, by controlling throttle part to improve the adaptability that air conditioner starts at different ambient temperatures to default aperture, enter
And the deposition that effectively prevent refrigerant causes the band liquid process started, the quick startup of air conditioner is more beneficial for；Pass through judgement
Whether air conditioner warm terminates, and then the aperture of throttle part is controlled by the operational factor of air conditioner so that
Air conditioner operates according to system for different load, adjusts its demand to different flow, improves air conditioner overall operation
Reliability and adaptability.
Fig. 7 shows the schematic block diagram of the control system of the air conditioner of an alternative embodiment of the invention.Wherein, the system
700 include：
First control unit 702, for when the compressor start after, control throttle part to be adjusted to preheat aperture, and continues
First preset time；
Judging unit 704, whether reach preheating termination condition for real-time judge air conditioner；
Second control unit 706, for when air conditioner reaches preheating termination condition, being adjusted according to the operational factor of air conditioner
The aperture of section section stream unit；
Second control unit 706, it is additionally operable to when air conditioner not up to preheats termination condition, return continues to control restriction
Part keeps preheating aperture.
Judging unit 704, is specifically included：
First acquisition unit 7042, for obtaining the discharge superheat of compressor in real time；
First determining unit 7044, for when discharge superheat reaches preset temperature, then air conditioner to reach preheating and terminated
Condition；Or
Second determining unit 7046, it is when the accumulated running time for being opened when compressor reaches the second preset time, then empty
Device is adjusted to reach preheating termination condition.
In this embodiment, on the one hand, judge whether air conditioner reaches preheating and terminate by the discharge superheat of compressor
Condition, in start-up course, the discharge superheat of compressor can be gradually increasing, i.e., first acquisition unit 7042 obtains according to real-time
The discharge superheat of compressor, when discharge superheat reaches preset temperature, the first determining unit 7044 represents that air conditioner reaches
Preheat termination condition.On the one hand, by the accumulated running time of compressor, judge whether air conditioner reaches preheating termination condition,
Reach the second preset time when the accumulated running time of compressor, the second determining unit 7046 represents that air conditioner reaches preheating and terminated
Condition.Specifically, preset temperature and the second preset time can obtain according to test of many times, reach the optimal shape of air conditioner operation
State；Certainly judge whether air conditioner reaches preheating termination condition and be not limited thereto.
In one embodiment of the invention, as shown in Figure 7, it is preferable that operational factor is the delivery temperature of compressor；Section
The aperture of stream unit and delivery temperature are proportional.
In this embodiment, the operational factor of air conditioner is the delivery temperature of compressor, according to the change control of delivery temperature
The aperture of throttle part processed, delivery temperature is directly proportional to the aperture of throttle part in the running of air conditioner, therefore when compression
The delivery temperature rise of machine, then increase the aperture of throttle part, when the delivery temperature reduction of compressor, then reduce throttle part
Aperture.By automatically adjusting the aperture of throttle part according to the exhaust gas temperature change of compressor, and then it is adapted to air conditioner and exists
The demand of different flow, makes air conditioner reach optimal running status when different load operates.
In one embodiment of the invention, as shown in Figure 7, it is preferable that operational factor is the discharge superheat of compressor；
The aperture of throttle part and discharge superheat are proportional.
In this embodiment, the operational factor of air conditioner is the discharge superheat of compressor, according to the change of discharge superheat
Change the aperture of control throttle part, discharge superheat is directly proportional to the aperture of throttle part in the running of air conditioner, therefore
When the discharge superheat of compressor raises, then the aperture of increase throttle part, when the discharge superheat reduction of compressor, then reduces
The aperture of throttle part.By automatically adjusting the aperture of throttle part according to the change of the discharge superheat of compressor, and then can be with
The demand of air conditioner different flow when different load operates is adapted to, air conditioner is reached optimal running status.In the present invention
One embodiment in, as shown in Figure 7, it is preferable that the span of preset temperature is：8 DEG C to 12 DEG C；Second preset time
Span is：28min to 32min.
In this embodiment, judge whether air conditioner reaches preheating termination condition, when the discharge superheat of compressor reaches 8
DEG C in the range of 12 DEG C, representing that air conditioner reaches preheating termination condition.Or when the accumulated running time of compressor reaches 28min
To 32min, also illustrate that air conditioner reaches preheating termination condition.
Fig. 8 shows the schematic block diagram of the control system of the air conditioner of yet another embodiment of the present invention.Wherein, the system
800 include：
First control unit 802, for when the compressor start after, control throttle part to be adjusted to preheat aperture, and continues
First preset time；
Judging unit 804, whether reach preheating termination condition for real-time judge air conditioner；
Second control unit 806, for when air conditioner reaches preheating termination condition, being adjusted according to the operational factor of air conditioner
The aperture of section section stream unit；
Second control unit 806, it is additionally operable to when air conditioner not up to preheats termination condition, return continues to control restriction
Part keeps preheating aperture.
Second determining unit 808, for determining to preheat aperture.
In this embodiment, under the holding state of air conditioner, first, the second determining unit 808 determines that throttle part is pre-
Hot aperture, after starting air conditioner, control throttle part, which is adjusted to preheat aperture, to be operated, by controlling throttle part to pre-
If aperture, the adaptability that air conditioner starts at different ambient temperatures is improved, and then the deposition that effectively prevent refrigerant is led
The band liquid process started is caused, is more beneficial for the quick startup of air conditioner.
Fig. 9 shows the schematic block diagram of the control system of the air conditioner of another embodiment of the present invention.Wherein, the system
900 include：
Judging unit 904, whether reach preheating termination condition for real-time judge air conditioner；
Second control unit 906, for when air conditioner reaches preheating termination condition, being adjusted according to the operational factor of air conditioner
The aperture of section section stream unit；
Second control unit 906, it is additionally operable to when air conditioner not up to preheats termination condition, return continues to control restriction
Part keeps preheating aperture.
Second determining unit 908, for determining to preheat aperture.
Second determining unit 908, is specifically included：
Second acquisition unit 9082, the environment temperature at the place for obtaining outdoor unit；
Setting unit 9084, for setting preset temperature section corresponding with preheating aperture；
3rd determining unit 9086, for the preset temperature section according to corresponding to environment temperature, it is determined that preheating aperture.
In this embodiment, setting unit 9084 sets different temperature ranges according to different preheating aperture, and such the
Two acquiring units 9082 are assured that throttling further according to the determining unit 9086 of environment temperature the 3rd at the place for obtaining outdoor unit
The opening value of part, so as to control throttle part to be adjusted to preheat aperture so that air conditioner Low Temperature Thermal at different ambient temperatures
During start-up course, the preheating aperture of different throttle parts is set according to different outdoor environment temperatures, and then makes air conditioner fast
The entrance steady operational status of speed, and then the deposition that effectively prevent refrigerant causes the band liquid process of startup, is more beneficial for sky
Adjust the quick startup of device.Figure 10 shows the environment temperature and preheating aperture comparative example of the specific embodiment of the present invention
Figure.
After compressor starting up, the throttle part (such as electric expansion valve) of control system is adjusted to certain preheating and opened
Degree, and continue the regular hour, in the process, whether real-time judge system reaches preheating termination condition, until judging
After air conditioner reaches preheating termination condition, the aperture of throttle part can be just adjusted according to the operational factor of system.
Wherein：
1st, the determination method of aperture is preheated：The environment temperature of outdoor unit local environment is obtained at the time of system will start
Degree, is then inquired about according to shown in Figure 10, chooses corresponding preheating aperture.Set section is four sections in figure, is respectively
During environment temperature >=temperature A, throttle part preheating aperture is aperture A；Temperature A ＞ environment temperatures >=temperature B, throttle part preheating
Aperture is aperture B；Temperature B ＞ environment temperatures >=temperature C, throttle part preheating aperture is aperture C；Temperature C ＞ environment temperatures, section
Stream unit preheating aperture is aperture D.Specific embodiment is not limited thereto, and air conditioner can set different temperature according to different situations
Section and opening value size are spent, but the overall principle is to divide throttle part aperture according to environment temperature.
In the embodiment：Temperature A span is 0 DEG C to -5 DEG C, and temperature B span is -5 DEG C to -10 DEG C, temperature
The span for spending C is -10 DEG C to -15 DEG C, and temperature D span is -15 DEG C to -20 DEG C.Opening value is with maximum opening
Exemplified by the electronic expansion valve body of 480 steps, other valve bodies are equal, and specific opening value section is：Aperture A span is
180 steps to 200 steps, aperture B span is 200 steps to 220 steps, and aperture C span is 220 steps to 240 steps, aperture
D span is 240 steps to 260 steps.
2nd, the condition judgment that preheating terminates：It is that system starts the judgement terminated with liquid process.Can with but do not limit
To reach certain value (such as 10 degree) according to the compressor air-discharging degree of superheat of system operation or compressor start reaches certain time
(such as 30min) judges.
3rd, the parameter regulation valve body aperture process according to system：According to system operational parameters such as：Delivery temperature, discharge superheat
Degree etc., carrys out regulation valve body aperture, the demand of different flow when being operated to adaptive system different load.In specific implementation, not
It is confined to listed operational factor.
In this embodiment, after compressor starting up, first, control throttle part is adjusted to preheating aperture and transported
Turn, and continue the first preset time, wherein, preheating aperture is that the environment temperature according to residing for air conditioner is set, and is led to
Control throttle part is crossed to default aperture, improves the adaptability that air conditioner starts at different ambient temperatures, and then effectively
Prevent the deposition of refrigerant to cause the band liquid process started, be more beneficial for the quick startup of air conditioner；Further, real-time judge
Whether air conditioner reaches the condition that preheating terminates, can be according to the operation of air conditioner when air conditioner reaches preheating termination condition
The aperture of parameter regulation throttle part, and when air conditioner not up to preheats termination condition, it is necessary to continue to control throttle part to protect
Preheating aperture is held, untill band liquid process terminates, by judging whether air conditioner warm terminates, and then passes through air conditioner
Operational factor the aperture of throttle part is controlled so that air conditioner according to system for different load operate, adjust it
To the demand of different flow.Air conditioning control method provided by the invention, the environment temperature according to residing for air conditioner set pre-
Hot aperture, by controlling throttle part to improve the adaptability that air conditioner starts at different ambient temperatures to default aperture, enter
And the deposition that effectively prevent refrigerant causes the band liquid process started, the quick startup of air conditioner is more beneficial for；Pass through judgement
Whether air conditioner warm terminates, and then the aperture of throttle part is controlled by the operational factor of air conditioner so that
Air conditioner operates according to system for different load, adjusts its demand to different flow, improves air conditioner overall operation
Reliability and adaptability.
In originally the description of book is shown, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that specific features, structure, material or the feature that the embodiment or example describe are contained in the present invention
Apply in example or example.In originally book is shown, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.Moreover, description specific features, structure, material or feature can in any one or more embodiments or example with
Suitable mode combines.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (15)
1. a kind of control method of air conditioner, the air conditioner include：Outdoor unit, compressor and throttle part, it is characterised in that
The control method includes：
After the compressor start, the throttle part is controlled to be adjusted to preheat aperture, and continue the first preset time；
Whether air conditioner described in real-time judge reaches preheating termination condition；
When the air conditioner reaches the preheating termination condition, the restriction is adjusted according to the operational factor of the air conditioner
The aperture of part；
When the air conditioner is not up to the preheating termination condition, return continues to control the throttle part to keep the preheating
Aperture.
2. the control method of air conditioner according to claim 1, it is characterised in that described to judge whether the air conditioner reaches
The step of to preheating termination condition, specifically include：
The discharge superheat of the compressor is obtained in real time；
When the discharge superheat reaches preset temperature, then the air conditioner reaches preheating termination condition；Or
When the accumulated running time of the compressor reaching the second preset time, then the air conditioner reaches preheating end bar
Part.
3. the control method of air conditioner according to claim 1, it is characterised in that described when the air conditioner reaches described
When preheating termination condition, according to the step of the aperture of the operational factor of the air conditioner regulation throttle part, specifically include：
The operational factor is the delivery temperature of the compressor；
The aperture of the throttle part and the delivery temperature are proportional.
4. the control method of air conditioner according to claim 1, it is characterised in that described when the air conditioner reaches described
When preheating termination condition, according to the step of the aperture of the operational factor of the air conditioner regulation throttle part, specifically include：
The operational factor is the discharge superheat of the compressor；
The aperture of the throttle part and the discharge superheat are proportional.
5. the control method of air conditioner according to claim 2, it is characterised in that
The span of the preset temperature is：8 DEG C to 12 DEG C；
The span of second preset time is：28min to 32min.
6. the control method of air conditioner according to any one of claim 1 to 5, it is characterised in that in the control institute
Before stating the step of throttle part is adjusted to preheat aperture, in addition to：
Determine the preheating aperture.
7. the control method of air conditioner according to claim 6, it is characterised in that the step for determining the preheating aperture
Suddenly, specifically include：
Obtain the environment temperature at the place of the outdoor unit；
Preset temperature section corresponding with the preheating aperture is set；
According to preset temperature section corresponding to the environment temperature, the preheating aperture is determined.
8. a kind of control system of air conditioner, the air conditioner include：Outdoor unit, compressor and throttle part, it is characterised in that
The control system includes：
First control unit, aperture is preheated for when the compressor start after, controlling the throttle part to be adjusted to, and continued
First preset time；
Judging unit, whether reach preheating termination condition for air conditioner described in real-time judge；
Second control unit, for when the air conditioner reach it is described preheating termination condition when, according to the operation of the air conditioner
The aperture of throttle part described in parameter regulation；
Second control unit, it is additionally operable to when the air conditioner is not up to the preheating termination condition, return continues to control
The throttle part keeps the preheating aperture.
9. the control system of air conditioner according to claim 8, it is characterised in that the judging unit, specifically include：
First acquisition unit, for obtaining the discharge superheat of the compressor in real time；
First determining unit, for when the discharge superheat reaches preset temperature, then the air conditioner to reach preheating and terminated
Condition；Or
Second determining unit, for when the accumulated running time of the compressor reaching the second preset time, then the air-conditioning
Device reaches preheating termination condition.
10. the control system of air conditioner according to claim 8, it is characterised in that the operational factor is the compression
The delivery temperature of machine；
The aperture of the throttle part and the delivery temperature are proportional.
11. the control system of air conditioner according to claim 8, it is characterised in that
The operational factor is the discharge superheat of the compressor；
The aperture of the throttle part and the discharge superheat are proportional.
12. the control system of air conditioner according to claim 9, it is characterised in that
The span of the preset temperature is：8 DEG C to 12 DEG C；
The span of second preset time is：28min to 32min.
13. the control system of the air conditioner according to any one of claim 8 to 12, it is characterised in that in the control
Before the step of throttle part is adjusted to preheat aperture, in addition to：
Second determining unit, for determining the preheating aperture.
14. the control system of air conditioner according to claim 13, it is characterised in that second determining unit, specifically
Including：
Second acquisition unit, the environment temperature at the place for obtaining the outdoor unit；
Setting unit, for setting preset temperature section corresponding with the preheating aperture；
3rd determining unit, for the preset temperature section according to corresponding to the environment temperature, determine the preheating aperture.
A kind of 15. air conditioner, it is characterised in that the control system including the air conditioner as any one of claim 8 to 14
System.
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| CN201710712136.9A CN107543283A (en) | 2017-08-18 | 2017-08-18 | A kind of control method of air conditioner, control system and air conditioner |
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| CN201710712136.9A CN107543283A (en) | 2017-08-18 | 2017-08-18 | A kind of control method of air conditioner, control system and air conditioner |
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| CN110542184A (en) * | 2019-09-12 | 2019-12-06 | 广东美的制冷设备有限公司 | Operation control method, operation control device, air conditioner, and storage medium |
| CN110906503A (en) * | 2019-11-07 | 2020-03-24 | 珠海格力电器股份有限公司 | Air conditioner heating control method and device and air conditioner |
| CN112283994A (en) * | 2020-10-30 | 2021-01-29 | 广东纽恩泰新能源科技发展有限公司 | Control method for preventing compressor from liquid impact |
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| CN110906503A (en) * | 2019-11-07 | 2020-03-24 | 珠海格力电器股份有限公司 | Air conditioner heating control method and device and air conditioner |
| CN112283994A (en) * | 2020-10-30 | 2021-01-29 | 广东纽恩泰新能源科技发展有限公司 | Control method for preventing compressor from liquid impact |
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