CN104864570B - A kind of motor control method of air-conditioning multi fan indoor set - Google Patents
A kind of motor control method of air-conditioning multi fan indoor set Download PDFInfo
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- CN104864570B CN104864570B CN201510284450.2A CN201510284450A CN104864570B CN 104864570 B CN104864570 B CN 104864570B CN 201510284450 A CN201510284450 A CN 201510284450A CN 104864570 B CN104864570 B CN 104864570B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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- Air Conditioning Control Device (AREA)
- Control Of Multiple Motors (AREA)
Abstract
A kind of motor control method of air-conditioning multi fan indoor set, the fan part of the air-conditioning multi fan indoor set includes N platform motors（3）And it is separately mounted to the blower fan on motor shaft（4）, N >=2, a motor（3）With a blower fan（4）For one group, N group motors（3）And blower fan（4）It is arranged above and below, and independent air channel air-supply is respectively adopted, it is characterised in that：It comprises the following steps：（1）Target temperature Ts is set, sampling period t is set, and with sampling period t automatic detection indoor environment temperature Tr, default setting is reduction when automatic absolute value ︱ △ T ︱=︱ Ts Tr ︱, the ︱ △ T ︱ for calculating temperature difference △ T are initialized；（2）Compared with last time samples, whether automatic decision ︱ △ T ︱ reduceIf so, then entering next step, if it is not, then entering step（4）.
Description
Technical field
The present invention relates to air-conditioning technical field, and in particular to a kind of motor control method of air-conditioning multi fan indoor set.
Background technology
Because air-conditioning list blower fan indoor set operationally has noise big, high energy consumption, can not to meet comfort level etc. a series of
Problem, occurs in that air-conditioning multi fan indoor set at present, and such as Publication No. CN101169267 Chinese invention patent application is disclosed
A kind of indoor apparatus of air conditioner, its fan part includes at least two motors, and the blower fan being separately mounted on motor shaft, described
One motor and a blower fan are one group, and every group of motor and blower fan are blown using independent air channel, employ above-mentioned blower fan portion
The indoor apparatus of air conditioner of part, the effect that its many low-power machines are run simultaneously fully achieves the operation effect of high-power single motor
Really, and when environment temperature reaches certain value and is not intended to all blower fans all in running status indoors, can be by separating
Controlling the mode of each motor closes part fan, so capable of reducing energy consumption, reduction noise, and can improve comfort level, in addition often
Independent air channel air-supply is respectively adopted in group motor and blower fan, can avoid interference each other, reduce further noise.
The motor operation of each blower fan is controlled respectively generally by remote control at present, but this fully relies on artificial behaviour
The mode of work, automaticity is relatively low, using simultaneously inconvenient and very limited to the reduction of energy consumption.
The content of the invention
The technical problem to be solved in the present invention is：There is provided that a kind of automaticity is high, easy to use, energy consumption is low, maneuverability
The motor control method of air-conditioning multi fan indoor set that can be stable.
The present invention technical solution be：A kind of motor control method of air-conditioning multi fan indoor set, the sky are provided
Adjusting the fan part of multi fan indoor set includes N platforms motor and the blower fan being separately mounted on motor shaft, N >=2, described one
Motor and blower fan are one group, and N groups motor and blower fan are arranged above and below, and independent air channel is respectively adopted blows, and its feature exists
In：It comprises the following steps：
(1) target temperature Ts is set, sampling period t is set, and with sampling period t automatic detection indoor environment temperature Tr,
Default setting is reduction when automatic absolute value ︱ △ T ︱=︱ Ts-Tr ︱, the ︱ △ T ︱ for calculating temperature difference △ T are initialized；
(2) compared with last time samples, whether automatic decision ︱ △ T ︱ reduceIf so, then entering next step, if it is not, then entering
Step (4)；
(3) set threshold temperature A1, A2 that m reduces successively ..., Am, 1≤m ＜ N, when ︱ △ T ︱ are more than maximum threshold values temperature
When spending A1, N platform motors are completely in opening, as ︱ △ T ︱ are gradually reduced, when reaching above-mentioned threshold temperature successively, progressively
Motor is closed, it is described progressively to close when referring to that ︱ △ T ︱ are reduced to a certain threshold temperature, in the motor of opening is currently in
One or more is closed, but at least ensures have a motor to be in opening；
(4) set n threshold temperature B1 elevated successively, B2 ..., Bn, n=m, be in the motor of identical quantity and open
When opening state, the threshold temperature set in step (3) is less than the threshold temperature set in step (4), as ︱ △ T ︱ gradually rise
Height, when reaching the threshold temperature set in this step successively, progressively opens motor, described progressively open refers to that ︱ △ T ︱ are increased to
During a certain threshold temperature, one or more is opened in the motor for be currently in closed mode, is at least ensured before progressively opening
There is a motor to be in opening.
After above-mentioned control method, the present invention has advantages below：
The absolute value of temperature difference △ T of the invention according to target temperature Ts and indoor environment temperature Tr, it is each to automatically control
The operation of individual motor, without manual operation, automaticity is high, easy to use, energy consumption is low, and is further contemplated in control method
The influence of fluctuation, because either refrigeration mode or heating mode, ︱ △ T ︱ are gradually reduced in general, room
Interior environment temperature Tr moves closer to target temperature Ts, but when indoor window is opened or other situations, may there is ︱ △ T ︱
︱ △ T ︱ are divided into two kinds of situations of rise and reduction by elevated situation, the present invention, are in the motor of identical quantity and be opened shape
During state, threshold temperature when setting threshold temperature during ︱ △ T ︱ reduction to be raised less than ︱ △ T ︱, at certain when can avoid the ︱ △ T ︱ from fluctuating
One value nearby toggles the running status of motor, it is ensured that the stabilization of motor operation performance.
Preferably, step (2) judge ︱ △ T ︱ also need to judge before whether reducing air-conditioning be in refrigeration mode or
Heating mode, if air-conditioning is refrigeration mode, following motor is preferentially closed in step (3), and then preferential in step (4)
Open motor above；If air-conditioning is heating mode, the preferential motor closed above in step (3), and in step (4)
Then preferentially open following motor.The setting is allowed in cooling mode, is sunk because cold air is heavier, is usually preferential fortune
The motor of row above；And be usually preferentially to run following motor because hot gas gentlier floats in a heating mode.
Preferably, two in the difference of two adjacent threshold temperatures value between [1,3] in step (3), step (4)
The difference of the individual adjacent threshold temperature also value between [1,3], when the motor of identical quantity is in opening, step
(3) difference of the threshold temperature set in the threshold temperature and step (4) that are set in value between [1,2].Above-mentioned parameter model
The reasonable setting enclosed toggles the running status of motor near a certain value when can be prevented effectively from ︱ △ T ︱ fluctuations, it is ensured that electricity
The stabilization of machine runnability.
Preferably, the difference of two adjacent threshold temperatures is two adjacent threshold values in 2, step (4) in step (3)
The difference of temperature is 2, when making the motor of identical quantity in opening, the threshold temperature and step set in step (3)
(4) difference of the threshold temperature set in is 1.The above-mentioned preferred value for being set to ensure motor stabilizing operation.
Preferably, setting N=3, two threshold temperature A1=5, A2=3 reduced successively are set in step (3),
When ︱ △ T ︱ are more than maximum threshold temperature A1=5, three motors are completely in opening, as ︱ △ T ︱ are gradually reduced, according to
It is secondary when reaching threshold temperature A1, A2, one be currently in the motor of opening is progressively closed, is set in step (4)
Two elevated threshold temperature B1=4, B2=6 successively, when ︱ △ T ︱ are less than minimum threshold temperature B1=4, have at a motor
In opening, as ︱ △ T ︱ gradually rise, when reaching threshold temperature B1, B2 successively, progressively open and be currently in closed mode
Motor in one.It is simple in construction as long as setting three groups of motors and blower fan, in conjunction with good parameter designing, it can obtain
Preferable control effect.
It is above-described to be more than, less than numerical value is not included in itself, as ︱ △ T ︱ are gradually reduced, threshold values temperature is reached successively
When spending, refer to that ︱ △ T ︱ are reduced to threshold temperature and following, as ︱ △ T ︱ gradually rise, when reaching threshold temperature successively, refer to ︱
△ T ︱ be increased to threshold temperature and more than.
Brief description of the drawings：
Fig. 1 is the motor control flow chart of air-conditioning multi fan indoor set of the present invention；
Fig. 2 be embodiment in be provided with three groups of motors and blower fan indoor apparatus of air conditioner fan part structural representation；
In figure：Spiral case after spiral case before 1-, 2-, 3- motors, 4- blower fans, 5- air channels, 6- air outlets；
The t- sampling periods, Ts- target temperatures, Tr- indoor environment temperatures, the absolute value of ︱ △ T ︱-temperature difference, A1, A2 ...,
The threshold temperature that sets when Am- ︱ △ T ︱ are reduced, B1, B2 ..., Bm- ︱ △ T ︱ rises when the threshold temperature that sets.
Embodiment
Below in conjunction with the accompanying drawings, and the present invention is described further in conjunction with the embodiments.
Embodiment：
The present invention each motor of air-conditioning multi fan indoor set is separately controlled there is provided a kind of air-conditioning multi fan indoor set
Motor control method, as shown in Figure 1.
In the present embodiment, the air-conditioning multi fan indoor set is provided with three motors 3 and three blower fans 4, its blower fan portion
Part structure as shown in Fig. 2 including preceding spiral case 1, rear spiral case 2, three motors 3 and the blower fan 4 being separately mounted on motor shaft,
One motor 3 and blower fan 4 are one group, and three groups of motors 3 and blower fan 4 install in the upper and lower order in preceding spiral case 1 and rear spiral case 2
It is internal after preceding spiral case 1 and rear spiral case 2 assembling to form three independent air channels 5, the air channel in the cavity volume being assembled to form
5 both sides and bottom are equipped with air outlet 6 so that every group of motor 3 and blower fan 4 can be respectively adopted independent air channel 5 and blow, and can keep away
Exempt from interference each other, further reduce noise.The preceding spiral case 1, rear spiral case 2, the setting of air channel 5 and air outlet 6 are adopted
With prior art, it is not the inventive point of the present invention, repeats no more here.
Below by taking the indoor apparatus of air conditioner with three groups of motors 3 and blower fan 4 as an example, to air-conditioning multi fan indoor set of the present invention
Motor control method is analyzed.
(1) target temperature Ts is set, sampling period t is set, and with sampling period t automatic detection indoor environment temperature Tr,
The automatic absolute value ︱ △ T ︱=︱ Ts-Tr ︱ for calculating temperature difference △ T, due to during operation of air conditioner, either heating mode is also
It is refrigeration mode, indoor environment temperature Tr is typically all to move closer to target temperature Ts, therefore default is set during ︱ △ T ︱ initialization
It is set to reduction；
(2) compared with last time samples, whether automatic decision ︱ △ T ︱ reduceIf so, then entering next step, if it is not, then entering
Step (4)；
(3) air-conditioning ︱ △ T ︱ when just opening are larger, generally higher than maximum threshold temperature A1, now set three motors
Opening is completely in, the effect of refrigerating/heating can be comparatively fast reached, when detecting ︱ △ T ︱ reductions, a threshold values temperature is set
Threshold temperature A1, A2 that degree A1 or two is reduced successively, progressively to close motor to reach the effect of power saving, but at least ensures have
One motor, which is in opening, to be used to maintain indoor temperature, when setting a threshold temperature A1, when ︱ △ T ︱ are reduced to threshold values temperature
When spending A1, it will close one or two be currently in three motors of opening, and two are set in the present embodiment
Threshold temperature A1, A2 reduced successively, the difference of two threshold temperatures A1, A2 should take between [1,3] in value, the present embodiment
Both differences are 2, specifically set A1=5, A2=3, and in refrigeration mode, following motor is preferentially closed, in heating mode
The lower preferential motor closed above, obtains following situation that may be present：
In cooling mode：
When ︱ △ T ︱ are more than threshold temperature A1=5, three motors are completely in opening；
When ︱ △ T ︱ are reduced to threshold temperature A1=5, it will close a following motor, middle and above two
Motor keeps opening；
When ︱ △ T ︱ continue to be reduced to threshold temperature A2=3, it will turn off the motor of centre, make following and middle
Two motors are in closed mode, and a motor only above keeps opening；
In a heating mode：
When ︱ △ T ︱ are more than threshold temperature A1=5, three motors are completely in opening；
When ︱ △ T ︱ are reduced to threshold temperature A1=5, it will close a motor above, middle and following two
Motor keeps opening；
When ︱ △ T ︱ continue to be reduced to threshold temperature A2=3, it will turn off the motor of centre, make above and middle
Two motors are in closed mode, and an only following motor keeps opening；
(4) if detect ︱ △ T ︱ rises, the threshold temperature with step (3) same number can be also set, with ︱ △ T ︱
Gradually rise, when reaching the threshold temperature set in this step successively, progressively open motor, described progressively open refers to ︱ △ T ︱
When being increased to a certain threshold temperature, unlatching is currently in one or more in the motor of closed mode, before progressively opening extremely
It is few to ensure there is a motor to be in opening, due to being provided with two threshold temperature A1=reduced successively in step (3)
5th, A2=3, then two elevated threshold temperatures B1, B2 successively are also correspondingly arranged in step (4), and it is small to meet threshold temperature A1
In threshold temperature B2, threshold temperature A2 is less than threshold temperature B1, the difference of threshold temperature B1, B2 should between [1,3] value, valve
Be worth temperature A1 and threshold temperature B2 difference should between [1,2] value, threshold temperature A2 and threshold temperature B1 difference should be
The difference that B1, B2 are taken in value between [1,2], this example is 2, and A1, B2 difference are 1, and A2, B1 difference are 1, specifically set B1
=4, B2=6, and the preferential motor opened above in refrigeration mode, following motor is preferentially opened in heating mode, is obtained
To following situation that may be present：
In cooling mode：
When ︱ △ T ︱ are less than threshold temperature B1=4, two middle and following motors are closed, electricity above
Machine is in opening；
When ︱ △ T ︱ are increased to threshold temperature B1=4, below motor keep closed mode, open in the middle of motor,
Two motors middle and above are made to be in opening；
When ︱ △ T ︱ continue to rise to threshold temperature B2=6, following motor is then turned on, three motors are completely in
Opening；
In a heating mode：
When ︱ △ T ︱ are less than threshold temperature B1=4, two motors middle and above are closed, electricity below
Machine is in opening；
When ︱ △ T ︱ are increased to threshold temperature B1=4, above motor keep closed mode, open in the middle of motor,
Middle and following two motors are made to be in opening；
When ︱ △ T ︱ continue to rise to threshold temperature B2=6, motor above is then turned on, three motors are completely in
Opening.
Therefore either heating mode or refrigeration mode, will make three motors be completely in opening, correspondence step
(3) threshold temperature when ︱ △ T ︱ are reduced is A1=5, and threshold temperature during correspondence step (4) ︱ △ T ︱ rises is B2=6,
Two motors are made to be completely in opening, threshold temperature during correspondence step (3) ︱ △ T ︱ reductions is A1=3, and correspondence step
(4) threshold temperature when ︱ △ T ︱ are raised is B2=4, therefore when making the motor of identical quantity in opening, step (3)
The threshold temperature of middle setting is less than the threshold temperature set in step (4), and the setting can be prevented effectively from △ T close to threshold temperature
Fluctuation is run into during A1 or A2, motor operating state can be toggled, causes motor operation performance unstable, such as in refrigeration mode
Lower setting target temperature Ts=19, if the indoor environment temperature Tr=23.9 that first sampling period detects, indoor environment temperature
The automatic detection of degree uses prior art, automatic to calculate ︱ △ T ︱, ︱ △ T ︱=︱ Ts-Tr ︱=4.9, because ︱ △ T ︱ are default
It is set to reduce, therefore ︱ △ T ︱ is obtained into step (3) and be reduced to below threshold temperature A1=5, it will closes following one
Motor, two motors middle and above keep opening, and under normal circumstances, hereafter ︱ △ T ︱ are gradually to reduce
, when being reduced to ︱ △ T ︱=3 by current ︱ △ T ︱=4.9, it can just change the running status of middle motor, there is certain change centre
Change scope, therefore middle motor will not back and forth be converted between operation and closing under normal circumstances, and in actual moving process
In when running into fluctuation, i.e., when ︱ △ T ︱ are raised, if still using the Rule of judgment of ︱ △ T ︱ reductions, such as ︱ △ T ︱ are by 4.9
It is slightly increased to 5.1, then the running status of following motor will be changed, three motors is completely in opening, if ︱
△ T ︱ are fluctuated back and forth, then the running status of motor will be toggled below, it is clear that the runnability of motor be it is unstable,
Motor can be greatly damaged, and the present invention does not use preceding method when running into fluctuation, but ︱ △ have been distinguished in control method
T ︱ are raised and two kinds of situations of reduction, when making the motor of identical quantity in opening, the threshold temperature set in step (3)
Less than the threshold temperature set in step (4), such as ︱ △ T ︱ are by 4.9 slight variations to 5.1, because Rule of judgment has changed
It need to just change the running status of following motor when reaching 6 for ︱ △ T ︱, following motor can be avoided well near ︱ △ T ︱=5
Toggle running status；Similarly, control method of the invention can also avoid middle motor from being toggled near ︱ △ T ︱=3
Running status.Therefore control method of the present invention can realize Automated condtrol, and easy to use, energy consumption is low, and runnability is stable.
Only highly preferred embodiment of the present invention is described above, but is not to be construed as limiting the scope of the invention.This
Invention is not limited only to above example, and it may be equally applicable for the control of Liang Tai, the multiple electric motors such as four.In every case in the present invention
The various change made in the protection domain of independent claims is within the scope of the present invention.
Claims (5)
1. a kind of motor control method of air-conditioning multi fan indoor set, the fan part of the air-conditioning multi fan indoor set includes N
Platform motor (3) and the blower fan (4) being separately mounted on motor shaft, N >=2, a motor (3) and a blower fan (4) are
One group, N groups motor (3) and blower fan (4) are arranged above and below, and independent air channel air-supply is respectively adopted, it is characterised in that：It include with
Lower step：(1) target temperature Ts is set, sampling period t is set, and with sampling period t automatic detection indoor environment temperature Tr, from
Default setting is reduction when dynamic absolute value ︱ △ T ︱=︱ Ts-Tr ︱, the ︱ △ T ︱ for calculating temperature difference △ T are initialized；(2) adopted with last time
Sample is compared, and whether automatic decision ︱ △ T ︱ reduceIf so, then entering next step, if it is not, then entering step (4)；(3) m are set
The threshold temperature A1 that reduces successively, A2 ..., Am, 1≤m ＜ N, when ︱ △ T ︱ are more than maximum threshold temperature A1, N platforms motor whole
In opening, as ︱ △ T ︱ are gradually reduced, when reaching above-mentioned threshold temperature successively, motor is progressively closed, it is described progressively to close
Close when referring to that ︱ △ T ︱ are reduced to a certain threshold temperature, one or more is closed in the motor for be currently in opening, but extremely
It is few to ensure there is a motor to be in opening；(4) set n threshold temperature B1 elevated successively, B2 ..., Bn, n=m,
When making the motor of identical quantity in opening, wherein, the threshold temperature that step (3) is set and the threshold set in step (4)
The relation of value temperature is：A1<Bn, A2<Bn-1.....Am<B1, as ︱ △ T ︱ gradually rise, reaches in this step and sets successively
Threshold temperature when, progressively open motor, it is described progressively to open when referring to that ︱ △ T ︱ are increased to a certain threshold temperature, locate at present
One or more is opened in the motor of closed mode, at least ensures have a motor in unlatching shape before progressively opening
State.
2. a kind of motor control method of air-conditioning multi fan indoor set according to claim 1, it is characterised in that：In step
(2) judging whether ︱ △ T ︱ reduce also needs to judge that air-conditioning is to be in refrigeration mode or heating mode before, if air-conditioning is refrigeration mould
Formula, then preferentially close following motor in step (3), and motor above is then preferentially opened in step (4)；If air-conditioning is
Heating mode, then preferentially close motor above in step (3), and then preferentially opens following motor in step (4).
3. a kind of motor control method of air-conditioning multi fan indoor set according to claim 1, it is characterised in that：Step
(3) difference of two adjacent threshold temperatures in the difference of two adjacent threshold temperatures value between [1,3] in, step (4)
It is worth the also value between [1,3], when making the motor of identical quantity in opening, the threshold temperature set in step (3)
With step (4) in set threshold temperature difference between [1,2] value.
4. a kind of motor control method of air-conditioning multi fan indoor set according to claim 1, it is characterised in that：Step
(3) difference of two adjacent threshold temperatures is that the difference of two adjacent threshold temperatures in 2, step (4) is 2 in, to make phase
When being in opening with the motor of quantity, the threshold temperature set in step (3) and the threshold temperature that is set in step (4)
Difference is 1.
5. a kind of motor control method of air-conditioning multi fan indoor set according to claim 1, it is characterised in that：N is set
=3, two threshold temperature A1=5, A2=3 reduced successively are set in step (3), when ︱ △ T ︱ are more than maximum threshold temperature
During A1=5, three motors are completely in opening, as ︱ △ T ︱ are gradually reduced, when reaching threshold temperature A1, A2 successively, by
Step closes one be currently in the motor of opening, and two elevated threshold values temperature B1=successively are set in step (4)
4, B2=6, when ︱ △ T ︱ are less than minimum threshold temperature B1=4, there is a motor to be in opening, as ︱ △ T ︱ gradually rise
Height, when reaching threshold temperature B1, B2 successively, progressively opens one be currently in the motor of closed mode.
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| CN105485845B (en) * | 2015-12-18 | 2018-07-03 | 奥克斯空调股份有限公司 | The motor control method of multi fan air conditioner indoor unit |
| CN107885087A (en) * | 2017-11-21 | 2018-04-06 | 安徽云维信息科技有限公司 | A kind of multi objective environment conditioning method and system preferential based on energy consumption |
| CN110608515B (en) * | 2018-06-15 | 2022-12-06 | 开利公司 | Air conditioning system and control method thereof |
| CN110260488A (en) * | 2019-06-25 | 2019-09-20 | 宁波奥克斯电气股份有限公司 | Power of motor control method, device and air conditioner |
| CN111594980A (en) * | 2020-06-02 | 2020-08-28 | 宁波奥克斯电气股份有限公司 | Air conditioner filth blockage judging method and device, medium and air conditioner |
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| CN113405148B (en) * | 2021-06-29 | 2023-01-13 | 华能国际电力股份有限公司上安电厂 | Heating medium temperature regulation and control method for heating power station |
| CN114992713A (en) * | 2022-05-18 | 2022-09-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Wall-mounted air conditioner indoor unit and control method |
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| CN104864570A (en) | 2015-08-26 |
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Effective date of registration: 20170503 Address after: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho Applicant after: AUX air conditioning Limited by Share Ltd Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Applicant before: Ningbo AUX Group. |
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