CN108278712A - A kind of power control method of variable frequency compressor preheating - Google Patents
A kind of power control method of variable frequency compressor preheating Download PDFInfo
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- CN108278712A CN108278712A CN201710005448.6A CN201710005448A CN108278712A CN 108278712 A CN108278712 A CN 108278712A CN 201710005448 A CN201710005448 A CN 201710005448A CN 108278712 A CN108278712 A CN 108278712A
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Abstract
The present invention proposes a kind of power control method of variable frequency compressor preheating, after solving air-conditioner standby, interior machine-cut break outer electromechanical source when, the winding pre-add hot function of the normally-open frequency-changeable compressor of energy.The present invention is by judging outdoor environment temperature and outdoor coil temperature to determine whether needing to preheat, then heating duration T1 is obtained and the duration T2 that cools down by prototype test, to be accurately judged to whether indoor unit is powered to outdoor unit, the winding of frequency-changeable compressor is preheated.After the present invention not only solves air-conditioner standby, the technical issues of winding preheats disabler, and method is easy to control, precise and high efficiency.
Description
Technical field
The present invention relates to compressor of air conditioner control technology fields, particularly relate to the power supply controlling party of variable frequency compressor preheating
Method.
Background technology
There is refrigerant, lubricating oil, lubricating oil to be played to bearing, the rotating mechanism etc. of immersion in the cavity of compressor of air conditioner
Lubricating action, when outdoor temperature is relatively low, the viscosity of lubricating oil becomes larger, and lubricating function is greatly lowered, and compressor of air conditioner is frequent
It cannot start, or even compressor of air conditioner is damaged.For this purpose, some compressor of air conditioner skies excessively to the winding of compressor of air conditioner into
Row computer heating control so that ensure the smooth startup of compressor of air conditioner.
Frequency-changeable compressor controls to ensure startup effect when low temperature, generally there is the pre-warmed control of press winding,
But with the demand of energy-saving and emission-reduction, most of unit outdoor power is all controlled by indoor unit, when standby not to air conditioning chamber outside
Unit is powered, to save standby power.
It is compressor of air conditioner application No. is 201310029091.7,103089598 A of Publication No. CN, patent name
The patent document of control method discloses a kind of control method preheated to compressor of air conditioner, and still, this method is using
Judge whether in the process fever condition it is relatively coarse, cannot efficiently, accurately determine a need for heating power, cause portion
Divide the waste of electric power resource, also, the premise outdoor unit of warm-up control there must be electricity, for energy-efficient demand, user's shutdown
When, indoor unit can cut off outer electromechanical source to energy saving, and outer machine is just failed without pre- hot function after electricity.
Invention content
The present invention is for the above technical issues, it is proposed that a kind of power control method of variable frequency compressor preheating is used for
Preheat the outdoor power control of frequency-changeable compressor.
The technical proposal of the invention is realized in this way：
A kind of power control method of variable frequency compressor preheating, including following operating procedure：
Step（1）, after power-on of air conditioner, air conditioner brings into operation；
Step（2）, indoor unit control relay be closed, indoor unit to outdoor unit power, powers duration Ft；
Step（3）By sensor sample current outdoor environment temperature and outdoor coil temperature, judge that outdoor environment temperature is
No to meet preheating condition, Rule of judgment is T outer shrouds<TEMP, if so, entering step（4）, if it is not, then entering step（7）；
Step（4）, judge whether outdoor coil temperature meets preheating condition, Rule of judgment is T external disks<(TEMP+ t), if so,
Then enter step（5）, if it is not, then entering step（7）；
Step（5）, outdoor unit gives indoor unit signaling by communication, mandatory requirement indoor unit power supply；
Step（6）, judge whether outdoor unit powers duration meets T1, if satisfied, then outdoor unit is taken by communication to indoor unit hair
Disappear the communication code of indoor constrained feed；
Step（7）, outdoor unit energization terminates, and indoor unit starts timing T2；
Step（8）, indoor unit clocks after the full T2 times, and indoor unit is powered to outdoor unit, and outdoor unit repeats step（2）To step
（7）Selection judge.
Preferably, step（1）Middle air conditioner is first made whether to be to power on for the first time after bringing into operation into being judged, if
It is to enter step（2）, if it is not, then entering step 1a；
Step（1a）, judge whether indoor unit standby time is more than T2, if so, entering step（2）, if it is not, then entering step
（1b）；
Step（1b）, judge whether indoor unit receives the constrained feed demand of outdoor unit, if so, entering step（2）, if it is not,
Then enter step（7）.
Further, the Ft is duration of the indoor unit to outdoor unit acquiescence power supply, when the powers duration Ft is
Between EEPROM（The electronics formula of erasing can make carbon copies read-only memory）Data.
Further, step（3）And step（4）In TEMP be temperature EEPROM（The electronics formula of erasing can make carbon copies only
Read memory）Data.
Further, the Ft is 90S.
Further preferably, step（4）In 5 DEG C≤t≤8 DEG C.
A kind of power control method of variable frequency compressor preheating, including following operating procedure：
Step（1）, after air-conditioning is opened, first determine whether air conditioner is to power for the first time；If so, entering step（4）；If it is not,
Then enter step（2）；
Step（2）, judge whether air-conditioner standby duration is more than T2, if so, entering step（4）, if it is not, then entering step（3）；
Step（3）, judge whether indoor unit receives the constrained feed demand of outer machine, if so, entering step（4）, if it is not, then not to
Indoor hair constrained feed communication code simultaneously enters step（12）；
Step（4）, indoor unit control relay is first closed, the power supply of outside machine, powers duration Ft, after completing power supply, into step
Suddenly（5）；
Step（5）, judge whether outdoor environment temperature meets preheating condition, Rule of judgment is T outer shrouds<TEMP, if so, entering step
Suddenly（6）, if it is not, then entering step（12）；
Step（6）, judge whether outdoor coil temperature meets preheating condition, Rule of judgment is T external disks<(TEMP+ t), if so,
Then enter step（7）, if it is not, then entering step（12）；
Step（7）, outdoor unit gives indoor unit signaling by communication, mandatory requirement indoor unit power supply；
Step（8）, after indoor unit receives constrained feed signal, relay is maintained to be attracted, cancels the control of power-on time Ft；
Step（9）, judgment step（7）Whether middle outdoor unit time of clocking meets T1, if it is not, then return to step（7）, if so,
It enters step（10）；
Step（10）, after outdoor unit timing time meets T1, cancel the communication code of indoor constrained feed to indoor hair by communicating；
Step（11）, the communication code of indoor unit reception cancellation constrained feed；
Step（12）, outdoor unit power-off is given in relay disconnection, while indoor unit starts the T2 that clocks；
Step（13）, indoor unit clocks after the full T2 times, and indoor unit is powered to outdoor unit again, after the powers duration Ft times, gives
Outdoor unit powers off, and starts simultaneously at indoor unit T2 and clocks；
Step（14）, indoor unit clocks after the full T2 times, and indoor unit is powered to outdoor unit after Ft durations, and outdoor unit repeats step
（5）To step（13）Selection judge.
One aspect of the present invention in low temperature to the pre-warmed realization compressor of air conditioner of compressor winding by remaining to normally open
Dynamic, by judging outdoor environment temperature and outdoor coil temperature to determine whether needing to preheat, Rule of judgment is accurate, avoids
Then the waste of electric power resource obtains heating duration T1 and the duration T2 that cools down, to be accurately judged to interior by prototype test
Whether machine needs is powered to outdoor unit, is preheated to the winding of frequency-changeable compressor, when solving air-conditioner standby, interior machine-cut
When disconnected outer electromechanical source, the winding pre-add hot function of the normally-open frequency-changeable compressor of energy ensure that air conditioner saves in use
Can be again environmentally friendly, control method is easy to control, and precise and high efficiency.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of the power control method of variable frequency compressor preheating in the prior art；
Fig. 2 is a kind of structural schematic diagram of the power control method of variable frequency compressor preheating of the present invention；
Fig. 3 is a kind of control flow chart of the power control method of variable frequency compressor preheating of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of not making the creative labor
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1, as shown in Fig. 2 ~ 3, an embodiment of the present invention provides a kind of power supply controlling parties of variable frequency compressor preheating
Method, concrete operation step are as follows：
Step（1）, after power-on of air conditioner, air conditioner brings into operation；
Step（2）, indoor unit control relay be closed, indoor unit to outdoor unit power, powers duration Ft；
Step（3）Judge whether outdoor environment temperature meets preheating condition, Rule of judgment is T outer shrouds<TEMP, if so, entering step
Suddenly（4）, if it is not, then entering step（7）；
Step（4）, judge whether outdoor coil temperature meets preheating condition, Rule of judgment is T external disks<(TEMP+ t), if so,
Then enter step（5）, if it is not, then entering step（7）；
Wherein, for the powers duration Ft indoor units to the duration of outdoor unit acquiescence power supply, the powers duration Ft is the time
EEPROM data, when air-conditioning dispatches from the factory with the setting of specific data mode, be stored in the controller EEPROM of indoor unit（Electronics is smeared
Except formula can make carbon copies read-only memory）In；
Preferably, the Ft is 90S；
The minimum temperature of lubricating oil, described when the TEMP can smoothly start for the preset compressor of air conditioner of outdoor unit
TEMP is set, is stored in the controller EEPROM of outdoor unit with specific data mode when air-conditioning dispatches from the factory（The electronics formula of erasing can answer
Write read-only memory）In；
Outdoor unit after the power is turned on, passes through sensor sample current outdoor environment temperature and outdoor coil temperature, air-conditioning unit room external disk
The temperature of pipe is higher than outdoor environment temperature, therefore, Rule of judgment is used as using TEMP+ t as with outdoor coil temperature comparison,
Wherein, t is a temperature variable, described 5 DEG C≤t≤8 DEG C, it is preferred that outdoor coil pipe used when the air-conditioner standby time is longer
Temperature does not exceed 7 DEG C of outdoor environment generally, and outdoor environment temperature and outdoor coil temperature are all easy acquisition, therefore, will " setting
Temperature TEMP " is compared with outdoor environment temperature and " TEMP+7 DEG C of set temperature " with outdoor coil temperature, to judge to compress
Whether machine, which needs, for electric preheating, was both easy to control, also precise and high efficiency；
Step（5）, outdoor unit gives indoor unit signaling by communication, mandatory requirement indoor unit power supply；
Step（6）, judge whether outdoor unit powers duration meets T1, if satisfied, then outdoor unit is taken by communication to indoor unit hair
Disappear the communication code of indoor constrained feed；
Wherein, when the time T1 set is prototype test, in galvanization for the first time, to winding heating power until lubricating oil temperature
Degree stops this period of heating power when reaching its maximum operating temperature, set, deposit in a concrete fashion when air conditioner dispatches from the factory
Store up the controller EEPROM in outdoor unit（The electronics formula of erasing can make carbon copies read-only memory）In；
Because lubricating oil is in heated journey, correspondence, and lubricating oil temperature are had no between temperature change and outdoor temperature
It is not easy to detect, therefore, instead of detecting the temperature of lubricating oil, using setting time T1 as the reference mark for judging heating time length
Standard, by the conversion of this standard, challenge is simplified；
Step（7）, outdoor unit energization terminates, and indoor unit starts timing T2；
When the T2 is experimental prototype, after stopping heating power, lubricating oil temperature is gradually decreased to set by maximum operating temperature
Set, be stored in the controller EEPROM of indoor unit in a concrete fashion when air conditioner dispatches from the factory this period of constant temperature degree（Electronics
The formula of erasing can make carbon copies read-only memory）In；
It is had no because lubricating oil by maximum temperature during dropping to set temperature, between lubricating oil temperature and outdoor temperature pair
It should be related to, and lubricating oil temperature is not easy to detect, therefore, instead of detecting the temperature of lubricating oil, using setting time T2 as judgement
The reference standard of heating time length, by the conversion of this standard, challenge is simplified；
Step（8）, indoor unit clocks after the full T2 times, and indoor unit is powered Ft durations to outdoor unit, and outdoor unit repeats step（2）Extremely
Step（7）Selection judge.
The winding of air conditioner is to be immersed in the refrigerant with lubricating oil, is mainly first entwined by system.It is demonstrate,proved through experiment
Bright, when leading to the direct current of a constant current to winding, winding, which can generate heat, directly heats lubricating oil without starting rotating mechanism, still
The heating temperature of lubricating oil should not detect and have certain technical difficulty, therefore be done experiment by model machine, then by the inspection of model machine
Measured data is applied directly on product, to accurately and efficiently solve air-conditioner standby when, interior machine-cut break outer electromechanical source when, can be just
The winding pre-add hot function of normally open frequency-changeable compressor, and it is energy saving and environmentally friendly.
Embodiment 2, however during the use of air conditioner, air conditioner is possible to only for standby mode, then in sky
After tune machine receives the instruction of operation, indoor unit is made whether it is to power on to be judged for the first time first, if so, into embodiment 1
Middle step（2）Subsequent selection is carried out to judge, if not powering on for the first time, then indoor unit judges whether standby time is more than T2, if
Standby time is more than T2, then enters step in embodiment 1（2）And it carries out subsequent selection and judges；If standby time is not greater than
T2, then judge whether indoor unit receives the constrained feed demand of outdoor unit, if the pressure that indoor unit receives always outdoor unit supplies
Electricity demanding is then powered always to outdoor unit, into step in embodiment 1（2）And it carries out subsequent selection and judges；If indoor unit does not have
There is the constrained feed demand for receiving outdoor unit, then not to indoor hair constrained feed communication code, then indoor unit is powered Ft to outdoor unit
After time, relay is disconnected, is powered off to outer machine, meanwhile, indoor unit starts T2 and clocks, and indoor unit clocked after the full T2 times, outdoor
Machine is according to step in embodiment 1（2）~ step（7）Carry out selection judgement.
Embodiment 3 had both included powering on for the first time as a complete embodiment of the invention, also include it is standby after power on, have
The step of body, is as follows：
Step（1）, after air-conditioning is opened, first determine whether air conditioner is to power for the first time；If so, entering step（4）；If it is not,
Then enter step（2）；
Step（2）, judge whether air-conditioner standby duration is more than T2, if so, entering step（4）, if it is not, then entering step（3）；
Step（3）, judge whether indoor unit receives the constrained feed demand of outer machine, if so, entering step（4）, if it is not, then not to
Indoor hair constrained feed communication code simultaneously enters step（12）；
Step（4）, indoor unit control relay is first closed, the power supply of outside machine, powers duration Ft, after completing power supply, into step
Suddenly（5）；
Step（5）, judge whether outdoor environment temperature meets preheating condition, Rule of judgment is T outer shrouds<TEMP, if so, entering step
Suddenly（6）, if it is not, then entering step（12）；
Step（6）, judge whether outdoor coil temperature meets preheating condition, Rule of judgment is T external disks<(TEMP+ t), if so,
Then enter step（7）, if it is not, then entering step（12）；
Step（7）, outdoor unit gives indoor unit signaling by communication, mandatory requirement indoor unit power supply；
Step（8）, after indoor unit receives constrained feed signal, relay is maintained to be attracted, cancels the control of power-on time Ft；
Step（9）, judgment step（7）Whether middle outdoor unit time of clocking meets T1, if it is not, then return to step（7）, if so,
It enters step（10）；
Step（10）, after outdoor unit timing time meets T1, cancel the communication code of indoor constrained feed to indoor hair by communicating；
Step（11）, the communication code of indoor unit reception cancellation constrained feed；
Step（12）, outdoor unit power-off is given in relay disconnection, while indoor unit starts the T2 that clocks；
Step（13）, indoor unit clocks after the full T2 times, and indoor unit is powered to outdoor unit again, after the powers duration Ft times, gives
Outdoor unit powers off, and starts simultaneously at indoor unit T2 and clocks；
Step（14）, indoor unit clocks after the full T2 times, and indoor unit is powered to outdoor unit after Ft durations, and outdoor unit repeats step
（5）To step（13）Selection judge.
After the present invention to outdoor unit by powering, judge to compress by detecting outdoor environment temperature and outdoor coil temperature
Whether machine, which needs, preheats, and since compressor lubricant oil should not measure, is obtained to winding heating power until profit by experimental prototype
Oil temperature stops the period T1 of heating power and stops heating power when reaching its maximum operating temperature after, lubricating oil temperature
Whether period T2 that set temperature is gradually decreased to by maximum operating temperature carries out standard handovers, pre- to compressor to obtain
The control instruction of heat solves technical barrier of the frequency-changeable compressor outdoor unit without pre- thermal failure after electricity.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (7)
1. a kind of power control method of variable frequency compressor preheating, it is characterised in that：Including following operating procedure：
Step（1）, after power-on of air conditioner, air conditioner brings into operation；
Step（2）, indoor unit control relay be closed, indoor unit to outdoor unit power, powers duration Ft；
Step（3）By sensor sample current outdoor environment temperature and outdoor coil temperature, judge that outdoor environment temperature is
No to meet preheating condition, Rule of judgment is T outer shrouds<TEMP, if so, entering step（4）, if it is not, then entering step（7）；
Step（4）, judge whether outdoor coil temperature meets preheating condition, Rule of judgment is T external disks<(TEMP+ t), if so,
Then enter step（5）, if it is not, then entering step（7）；
Step（5）, outdoor unit gives indoor unit signaling by communication, mandatory requirement indoor unit power supply；
Step（6）, judge whether outdoor unit powers duration meets T1, if satisfied, then outdoor unit is taken by communication to indoor unit hair
Disappear the communication code of indoor constrained feed；
Step（7）, outdoor unit energization terminates, and indoor unit starts timing T2；
Step（8）, indoor unit clocks after the full T2 times, and indoor unit is powered to outdoor unit, and outdoor unit repeats step（2）To step
（7）Selection judge.
2. a kind of power control method of variable frequency compressor preheating according to claim 1, it is characterised in that：Step（1）
Middle air conditioner is first made whether to be to power on for the first time into being judged, if so, entering step after bringing into operation（2）, if it is not, then
It enters step（1a）；
Step（1a）, judge whether indoor unit standby time is more than T2, if so, entering step（2）, if it is not, then entering step
（1b）；
Step（1b）, judge whether indoor unit receives the constrained feed demand of outdoor unit, if so, entering step（2）, if it is not,
Then enter step（7）.
3. a kind of power control method of variable frequency compressor preheating according to claim 1, it is characterised in that：The Ft
It is the duration that indoor unit is powered to outdoor unit acquiescence, the powers duration Ft is the EEPROM of time（The electronics formula of erasing can answer
Write read-only memory）Data.
4. a kind of power control method of variable frequency compressor preheating according to claim 1, it is characterised in that：Step（3）
And step（4）In TEMP be temperature EEPROM（The electronics formula of erasing can make carbon copies read-only memory）Data.
5. a kind of power control method of variable frequency compressor preheating according to claim 1 or 3, it is characterised in that：It is described
Ft be 90S.
6. a kind of power control method of variable frequency compressor preheating according to claim 1, it is characterised in that：Step（4）
In 5 DEG C≤t≤8 DEG C.
7. a kind of power control method of variable frequency compressor preheating, it is characterised in that：Including following operating procedure：
Step（1）, after air-conditioning is opened, first determine whether air conditioner is to power for the first time；If so, entering step（4）；If it is not,
Then enter step（2）；
Step（2）, judge whether air-conditioner standby duration is more than T2, if so, entering step（4）, if it is not, then entering step（3）；
Step（3）, judge whether indoor unit receives the constrained feed demand of outer machine, if so, entering step（4）, if it is not, then not to
Indoor hair constrained feed communication code simultaneously enters step（12）；
Step（4）, indoor unit control relay is first closed, the power supply of outside machine, powers duration Ft, after completing power supply, into step
Suddenly（5）；
Step（5）, judge whether outdoor environment temperature meets preheating condition, Rule of judgment is T outer shrouds<TEMP, if so, entering step
Suddenly（6）, if it is not, then entering step（12）；
Step（6）, judge whether outdoor coil temperature meets preheating condition, Rule of judgment is T external disks<(TEMP+ t), if so,
Then enter step（7）, if it is not, then entering step（12）；
Step（7）, outdoor unit gives indoor unit signaling by communication, mandatory requirement indoor unit power supply；
Step（8）, after indoor unit receives constrained feed signal, relay is maintained to be attracted, cancels the control of power-on time Ft；
Step（9）, judgment step（7）Whether middle outdoor unit time of clocking meets T1, if it is not, then return to step（7）, if so,
It enters step（10）；
Step（10）, after outdoor unit timing time meets T1, cancel the communication code of indoor constrained feed to indoor hair by communicating；
Step（11）, the communication code of indoor unit reception cancellation constrained feed；
Step（12）, outdoor unit power-off is given in relay disconnection, while indoor unit starts the T2 that clocks；
Step（13）, indoor unit clocks after the full T2 times, and indoor unit is powered to outdoor unit again, after the powers duration Ft times, gives
Outdoor unit powers off, and starts simultaneously at indoor unit T2 and clocks；
Step（14）, indoor unit clocks after the full T2 times, and indoor unit is powered to outdoor unit after Ft durations, and outdoor unit repeats step
（5）To step（13）Selection judge.
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| CN109405187A (en) * | 2018-06-21 | 2019-03-01 | 杭州先途电子有限公司 | A kind of control method and frequency-variable controller |
| CN109682020A (en) * | 2018-12-28 | 2019-04-26 | Tcl空调器(中山)有限公司 | A kind of compressor preheating control method, system, storage medium and air-conditioner outdoor unit |
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