CN110410967A - The control method and multi-online air-conditioning system of multi-online air-conditioning system pipeline noise - Google Patents
The control method and multi-online air-conditioning system of multi-online air-conditioning system pipeline noise Download PDFInfo
- Publication number
- CN110410967A CN110410967A CN201910596989.XA CN201910596989A CN110410967A CN 110410967 A CN110410967 A CN 110410967A CN 201910596989 A CN201910596989 A CN 201910596989A CN 110410967 A CN110410967 A CN 110410967A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- conditioning system
- online air
- indoor unit
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
Abstract
The present invention provides the control methods and multi-online air-conditioning system of multi-online air-conditioning system pipeline noise, multi-online air-conditioning system includes indoor unit heating booting pipeline and indoor unit heating standby pipeline, be provided with electric expansion valve on indoor unit pipeline, by control room on machine heating standby pipeline the aperture and open and close mode of electric expansion valve come the noise of machine heating standby pipeline in control room.Control method of the invention only changes the control programmed logic of electronic expansion valve of indoor unit aperture, saves cost, and ensure that system reliability while control noise without changing existing air-conditioning duct.
Description
Technical field
The present invention relates to air-conditioning technical fields, in particular to the control method of multi-online air-conditioning system pipeline noise
And multi-online air-conditioning system.
Background technique
Multi-online air-conditioning system has multiple indoor units used in parallel, in a heating mode, at the pipeline of indoor unit part
In open state, part pipeline is in standby, in order to guarantee the reliability of multi-online air-conditioning system, in heating standby pipeline
Electronic expansion valve of indoor unit can maintain certain aperture, but under heating state refrigerant indoors before machine electric expansion valve generally
Gas-liquid two-phase state contains a large amount of bubbles in the refrigerant of gas-liquid two-phase state, when the refrigerant of gas-liquid two-phase state passes through indoor unit
When the lesser opening of electric expansion valve, air pocket is squeezed and broken and generates squeak, remaining major part gas-liquid two-phase refrigerant collision cell
Interior machine electric expansion valve rebounds, and at this moment causes purr again, sound is successive repeatedly；Usually initial setting
Electronic expansion valve of indoor unit aperture be 60pls, at this time in standby pipeline the refrigerant flow regime of gas-liquid two-phase state rise and fall it is big,
The refrigerant of gas-liquid two-phase state causes standby pipeline to be in half cavity-like state, is exaggerated liquid stream noise result.
The flow noise of multi-online air-conditioning system heating standby pipeline is larger and successive, affects user experience,
Therefore it needs to control multi-online air-conditioning system heating standby pipeline noise, while also to guarantee multi-online air-conditioning system
System reliability finds suitable equalization point between pipeline noise and system reliability, can reduce pipeline noise and
The reliability of guarantee system.
In the prior art, liquid stream noise is solved the problems, such as by increasing capillary in pipeline, but increases capillary
It needs to be modified existing pipeline, pipeline changes higher cost, and capillary is other than reducing pipeline noise, not
Other beneficial effects, accordingly, it is desirable to provide a kind of method of the reduction pipeline noise of more simple possible.
Summary of the invention
To solve the above problems, the present invention provides the control method and multi-gang air-conditioner of multi-online air-conditioning system pipeline noise
System solves in the prior art by the control to heating standby pipeline electronic expansion valve of indoor unit aperture because of standby pipeline
The problem of pipeline liquid stream noise caused by the initial opening of electronic expansion valve of indoor unit is larger, while ensure that multi-gang air-conditioner system
The system reliability of system.
The present invention provides the control method of multi-online air-conditioning system pipeline noise, multi-online air-conditioning system includes indoor unit
Booting pipeline and indoor unit heating standby pipeline are heated, is provided with electric expansion valve on indoor unit pipeline, passes through and controls indoor unit
The aperture of electric expansion valve and open and close mode carry out the noise of machine heating standby pipeline in control room on heating standby pipeline.
Control method of the invention only changes electronic expansion valve of indoor unit aperture without changing existing air-conditioning duct
Programmed logic is controlled, saves cost, and ensure that system reliability while control noise.
Further, the control method specifically includes the following steps:
Step S1: in the initial state, the electronic expansion valve of indoor unit of standby pipeline is in initially to be opened heating standby pipeline
Spend PMVTo 1；
Step S2: in multi-online air-conditioning system heating process, the gas-liquid pipeline of heating standby pipeline is detected respectively
Temperature TGasAnd TLiquid, detect the delivery temperature T of compressorExhaust, the degree of superheat of standby pipeline is calculated according to measurement result；
Step S3: when multi-online air-conditioning system meets specific unlocking condition, the electronic expansion valve of indoor unit of standby pipeline
Aperture by PMVTo 1It is slowly increased to PMVTo 2；
Step S4: when multi-online air-conditioning system meets specific closedown condition, the electronic expansion valve of indoor unit of standby pipeline
Aperture by PMVTo 2Slowly it is reduced to PMVTo 1。
Being slowly increased and reducing for electronic expansion valve opening is controlled according to the condition of setting, can guarantee that system is reliable
Property under the premise of, reduce indoor unit heating standby pipeline noise, electronic expansion valve opening it is slowly varying so that refrigerant flow rate
Smooth change will not generate additional noise.
Further, initial opening PMVTo 1=25pls.
It compares by test of many times it is found that the electronic expansion valve of indoor unit in standby pipeline is in aperture PMVTo 1=25pls
When, the refrigerant in standby pipeline is that liquid is dripped shape flowing, and flow fluctuation is small, and the refrigerant of indoor unit side cannot flow back to pressure in time
Contracting machine, indoor unit heating standby pipeline, which is gradually full of by the refrigerant of liquid, is in fluid status, half cavity-like state of standby pipeline
It is eliminated, simultaneously because liquid refrigerants will lead to acoustic damping increase, to achieve the effect that reduce pipeline noise, therefore initial first
Beginning aperture is set as 25pls.
Further, PMVTo 2=40pls.
It compares by test of many times it is found that the electronic expansion valve of indoor unit in standby pipeline is in PMVTo 2When=40pls,
Refrigerant in standby pipeline slowly flows, and flow fluctuation is small, and can release the fluid status of standby pipeline, while will not produce
Raw additional liquid stream noise.
Further, the degree of superheat of standby pipeline △ TThe gas-liquid pipeline temperature difference=TGas-TLiquidTo indicate.
Further, the specific unlocking condition is any of following two condition:
1. current gas-liquid pipeline temperature difference △ TThe current gas-liquid pipeline temperature difference temperature difference≤ preset gas-liquid pipeline temperature difference minimum value △
TSet gas-liquid pipeline temperature difference minWhen；
2. the electronic expansion valve of indoor unit aperture PMV of heating booting pipelineIt opens≤ 300pls, and TExhaust≤80℃。
When the gas-liquid pipeline temperature difference is less than or equal to preset gas-liquid pipeline temperature difference minimum value or compressor exhaust temperature
When low, show that the refrigerant supply amount of multi-online air-conditioning system is insufficient, need to increase the aperture of electric expansion valve, increase the stream of refrigerant
Dynamic speed is to increase the supply amount of refrigerant.
Further, △ TSet gas-liquid pipeline temperature difference min=23 DEG C.
The selection of above-mentioned parameter is obtained according to test of many times, ensure that system reliability, while saving the energy.
Further, the specific closedown condition is any of following two condition:
1. current gas-liquid pipeline temperature difference △ TThe current gas-liquid pipeline temperature difference>=and preset gas-liquid pipeline temperature difference maximum value △
TSet gas-liquid pipeline temperature difference maxWhen；
2. the electronic expansion valve of indoor unit aperture PMV of heating booting pipelineIt opens>=350pls and TExhaust≥95℃。
When the gas-liquid pipeline temperature difference is more than or equal to preset gas-liquid pipeline temperature difference maximum value or compressor exhaust temperature
Gao Shi needs to reduce the aperture of electric expansion valve, reduces refrigerant when showing the refrigerant supply amount excess of multi-online air-conditioning system
Flowing velocity is to reduce the supply amount of refrigerant.
Further, △ TSet gas-liquid pipeline temperature difference max=50 DEG C.
The selection of above-mentioned parameter is obtained according to test of many times, ensure that system reliability, while saving the energy.
The present invention also provides a kind of multi-online air-conditioning system, including compressor, processor and memory, the processors
The compressor and the memory are connected, the memory is stored with program, and described program is executed by the processor with reality
The step of showing above-mentioned control method.
Detailed description of the invention
Fig. 1 is the flow diagram of the control method of the multi-online air-conditioning system of embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the multi-online air-conditioning system of embodiment of the present invention；
Description of symbols:
1- outdoor unit；2- indoor unit；3- compressor；4- gas-liquid separator；5- four-way valve；6- electronic expansion valve of indoor unit；
7- temperature sensor；8- environment temperature sensor；9- defrosting sensor；10- trachea transducer；11- liquid pipe sensor；12- inhales
Gas temperature sensor；13- exhaust gas temperature sensor；14- high pressure sensor；15- low pressure sensor.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
As shown in Figs. 1-2, a kind of schematic diagram of multi-online air-conditioning system has an outdoor unit 1 and three indoor units 2,
Three indoor units 2 are in parallel, and connect respectively with outdoor unit and compressor 3, and indoor electromechanics is provided on the pipeline of every indoor unit
Sub- expansion valve 6, trachea transducer 10, liquid pipe sensor 11, First indoor unit is heating open state in the present embodiment, the
Two, third platform indoor unit is heating standby state, i.e., multi-online air-conditioning system has an indoor unit booting pipeline and two rooms
The interior standby pipeline of machine.
The control method of multi-online air-conditioning system pipeline noise, specifically includes the following steps:
Step S1: in the initial state, the electronic expansion valve of indoor unit of standby pipeline is in initially to be opened heating standby pipeline
Spend PMVTo 1, initial opening PMVTo 1Preferably PMVTo 1=25pls.
It compares by test of many times it is found that the electronic expansion valve of indoor unit in standby pipeline is in initial opening PMVTo 1=
When 25pls, refrigerant in standby pipeline is that liquid is dripped shape flowing, and flow fluctuation is small, due to opening for electronic expansion valve of indoor unit
Spend small, the refrigerant of 2 side of indoor unit cannot flow back to compressor 3 in time, and the standby pipeline of 2 side of indoor unit is gradually by the cold of liquid
Matchmaker, which is full of, is in fluid status, and half cavity-like state of standby pipeline is eliminated, simultaneously because liquid refrigerants will lead to acoustic damping increasing
Greatly, to achieve the effect that reduce pipeline noise.
Step S2: in multi-online air-conditioning system heating process, trachea transducer 10 and liquid pipe sensing are utilized respectively
The gas-liquid line temperature T of the detection heating standby pipeline of device 11GasAnd TLiquid, the exhaust of compressor is detected using exhaust gas temperature sensor 13
Temperature TExhaust, the degree of superheat of standby pipeline, the degree of superheat △ T of standby pipeline are calculated according to measurement resultThe gas-liquid pipeline temperature difference=TGas-TLiquidCome
It indicates.
Step S3: when multi-online air-conditioning system meets any one in following two condition, the indoor unit of standby pipeline
The aperture of electric expansion valve is by PMVTo 1It is slowly increased to PMVTo 2, wherein PMVTo 1=25pls, PMVTo 2=40pls, it is indoor electromechanical
The opening speed of sub- expansion valve is 1pls/min, duration 15min, the valve opening movement interval 1min of every standby indoor unit
(valve opening movement interval just for have the case where two or more standby indoor units):
1. current gas-liquid pipeline temperature difference △ TThe current gas-liquid pipeline temperature difference temperature difference≤ preset gas-liquid pipeline temperature difference minimum value △
TSet gas-liquid pipeline temperature difference minWhen, wherein △ TSet gas-liquid pipeline temperature difference min=23 DEG C；
2. the electronic expansion valve of indoor unit aperture PMV of heating booting pipelineIt opens≤ 300pls, and TExhaust≤80℃；
When the gas-liquid pipeline temperature difference is less than or equal to preset gas-liquid pipeline temperature difference minimum value or compressor exhaust temperature
When low, illustrate that the refrigerant supply amount of multi-online air-conditioning system is insufficient, the electronic expansion valve of indoor unit of standby pipeline starts slowly to open
It opens, compares by test of many times it is found that the electronic expansion valve of indoor unit in standby pipeline is in PMVTo 2When=40pls, standby pipe
Refrigerant in road slowly flows, and flow fluctuation is small, and can release the fluid status of standby pipeline, while will not generate additional
Liquid stream noise, the aperture of electric expansion valve increases, and the coolant quantity of multi-online air-conditioning system, which supplies, to be promoted, and ensure that system is reliable
Property.
Step S4: when multi-online air-conditioning system meets any one in following two condition, the indoor unit of standby pipeline
The aperture of electric expansion valve is by PMVTo 2Slowly it is reduced to PMVTo 1, wherein PMVTo 1=25pls, PMVTo 2=40pls, it is indoor electromechanical
The closing velocity of sub- expansion valve is 1pls/min, duration 15min, the pass valve events interval 1min of every standby indoor unit
(close valve events interval just for have the case where two or more standby indoor units):
1. current gas-liquid pipeline temperature difference △ TThe current gas-liquid pipeline temperature difference>=and preset gas-liquid pipeline temperature difference maximum value △
TSet gas-liquid pipeline temperature difference maxWhen, wherein △ TSet gas-liquid pipeline temperature difference max=50 DEG C；
2. the electronic expansion valve of indoor unit aperture PMV of heating booting pipelineIt opens>=350pls and TExhaust≥95℃；
When the gas-liquid pipeline temperature difference is more than or equal to preset gas-liquid pipeline temperature difference maximum value or compressor exhaust temperature
Gao Shi illustrates that the refrigerant supply amount of multi-online air-conditioning system is excessive, and the electronic expansion valve of indoor unit of standby pipeline starts slowly to close
It closes, until returning to initial opening PMVTo 1=25pls, the standby pipeline of 2 side of indoor unit, which is gradually full of by the refrigerant of liquid, to be in
Fluid status reduces the refrigerant supply amount of multi-online air-conditioning system, saves the energy.
The control method of multi-online air-conditioning system pipeline noise of the invention is only changed without changing existing air-conditioning duct
The control programmed logic of electronic expansion valve of indoor unit aperture.
The present invention also provides a kind of multi-online air-conditioning system, including compressor, processor and memory, processor connection pressures
The step of contracting machine and memory, memory are stored with program, and program is executed by processor to realize above-mentioned control method.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (10)
1. the control method of multi-online air-conditioning system pipeline noise, the multi-online air-conditioning system includes indoor unit heating booting pipe
Road and indoor unit heating standby pipeline are provided with electric expansion valve on indoor unit pipeline, it is characterised in that: pass through control indoor unit
The aperture of electric expansion valve and open and close mode carry out the noise of machine heating standby pipeline in control room on heating standby pipeline.
2. the control method of multi-online air-conditioning system pipeline noise according to claim 1, it is characterised in that: the control
Method processed specifically includes the following steps:
Step S1: in the initial state, the electronic expansion valve of indoor unit of standby pipeline is in initial opening to heating standby pipeline
PMVTo 1；
Step S2: in multi-online air-conditioning system heating process, the gas-liquid line temperature of heating standby pipeline is detected respectively
TGasAnd TLiquid, detect the delivery temperature T of compressorExhaust, the degree of superheat of standby pipeline is calculated according to measurement result；
Step S3: when multi-online air-conditioning system meets specific unlocking condition, the electronic expansion valve of indoor unit of standby pipeline is opened
Degree is by PMVTo 1It is slowly increased to PMVTo 2；
Step S4: when multi-online air-conditioning system meets specific closedown condition, the electronic expansion valve of indoor unit of standby pipeline is opened
Degree is by PMVTo 2Slowly it is reduced to PMVTo 1。
3. the control method of multi-online air-conditioning system pipeline noise according to claim 2, it is characterised in that: initial opening
PMVTo 1=25pls.
4. the control method of multi-online air-conditioning system pipeline noise according to claim 2, it is characterised in that: PMVTo 2=
40pls。
5. the control method of multi-online air-conditioning system pipeline noise according to claim 2, it is characterised in that: standby pipeline
Degree of superheat △ TThe gas-liquid pipeline temperature difference=TGas-TLiquidTo indicate.
6. the control method of multi-online air-conditioning system pipeline noise according to claim 2, it is characterised in that: described specific
Unlocking condition is any of following two condition:
1. current gas-liquid pipeline temperature difference △ TThe current gas-liquid pipeline temperature difference temperature difference≤ preset gas-liquid pipeline temperature difference minimum value △
TSet gas-liquid pipeline temperature difference minWhen；
2. the electronic expansion valve of indoor unit aperture PMV of heating booting pipelineIt opens≤ 300pls, and TExhaust≤80℃。
7. the control method of multi-online air-conditioning system pipeline noise according to claim 6, it is characterised in that: △
TSet gas-liquid pipeline temperature difference min=23 DEG C.
8. the control method of multi-online air-conditioning system pipeline noise according to claim 2, it is characterised in that: described specific
Closedown condition is any of following two condition:
1. current gas-liquid pipeline temperature difference △ TThe current gas-liquid pipeline temperature difference>=and preset gas-liquid pipeline temperature difference maximum value △
TSet gas-liquid pipeline temperature difference maxWhen；
2. the electronic expansion valve of indoor unit aperture PMV of heating booting pipelineIt opens>=350pls and TExhaust≥95℃。
9. the control method of multi-online air-conditioning system pipeline noise according to claim 8, it is characterised in that: △
TSet gas-liquid pipeline temperature difference max=50 DEG C.
10. a kind of multi-online air-conditioning system, which is characterized in that including compressor, processor and memory, the processor connection
The compressor and the memory, the memory are stored with program, and described program is executed by the processor to realize power
Benefit requires the step of 1-9 described in any item control methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596989.XA CN110410967B (en) | 2019-07-03 | 2019-07-03 | Control method for pipeline noise of multi-split air conditioning system and multi-split air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596989.XA CN110410967B (en) | 2019-07-03 | 2019-07-03 | Control method for pipeline noise of multi-split air conditioning system and multi-split air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110410967A true CN110410967A (en) | 2019-11-05 |
| CN110410967B CN110410967B (en) | 2021-08-24 |
Family
ID=68358806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910596989.XA Active CN110410967B (en) | 2019-07-03 | 2019-07-03 | Control method for pipeline noise of multi-split air conditioning system and multi-split air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110410967B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023261A (en) * | 2019-12-17 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Method and device for reducing on-line noise of multi-connected unit and multi-connected unit |
| CN111503816A (en) * | 2020-04-29 | 2020-08-07 | 广东美的制冷设备有限公司 | Defrosting sound suppression method, storage medium, suppression device and air conditioner |
| CN112344537A (en) * | 2020-11-17 | 2021-02-09 | 珠海格力电器股份有限公司 | Noise reduction control method and device for indoor unit of multi-split air conditioner and multi-split air conditioner |
| CN113639395A (en) * | 2021-08-05 | 2021-11-12 | 青岛海尔空调电子有限公司 | Control method and system of multi-split air conditioner and multi-split air conditioner |
| WO2023160065A1 (en) * | 2022-02-28 | 2023-08-31 | 青岛海尔空调电子有限公司 | Method for controlling multi-split air conditioning system |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09210492A (en) * | 1996-01-31 | 1997-08-12 | Matsushita Seiko Co Ltd | Electric expansion valve control device for multi-room type air conditioner |
| JP2002195629A (en) * | 2000-12-26 | 2002-07-10 | Toshiba Kyaria Kk | Air conditioner |
| CN1645007A (en) * | 2004-01-19 | 2005-07-27 | Lg电子株式会社 | Method for controlling multi-type air conditioner |
| KR20080036314A (en) * | 2006-10-23 | 2008-04-28 | 엘지전자 주식회사 | A reduction method of mode changeover noise for multi-airconditioner |
| CN102032648A (en) * | 2010-12-07 | 2011-04-27 | 海信（山东）空调有限公司 | Refrigerant flow control method for multi-connected air-conditioning system during heating |
| CN104501303A (en) * | 2014-11-24 | 2015-04-08 | 广东美的制冷设备有限公司 | Multi-split air conditioner and refrigerant circulation control method |
| CN104697120A (en) * | 2015-03-24 | 2015-06-10 | 广东美的暖通设备有限公司 | VRV (Varied Refrigerant Volume) system and noise reduction control method thereof |
| CN105258275A (en) * | 2015-09-23 | 2016-01-20 | 广东美的暖通设备有限公司 | Multi-split system and low noise control method for electronic expansion valves of multi-split system |
| CN105698268A (en) * | 2016-03-23 | 2016-06-22 | 广东美的暖通设备有限公司 | Multi-online system and control method for heating and throttling element of multi-online system |
| EP3130862A1 (en) * | 2015-08-11 | 2017-02-15 | Lg Electronics Inc. | Air conditioner and method of operating the same |
| KR20170045526A (en) * | 2015-10-19 | 2017-04-27 | 엘지전자 주식회사 | Indoor unit of air conditioner |
| CN106642843A (en) * | 2017-02-20 | 2017-05-10 | 珠海格力电器股份有限公司 | Air conditioning unit and operation control method and device thereof |
| CN107062580A (en) * | 2017-03-21 | 2017-08-18 | 珠海格力电器股份有限公司 | It is a kind of to reduce the control method and multi-gang air-conditioner of noise of indoor unit of air conditioner |
| JP2017155952A (en) * | 2016-02-29 | 2017-09-07 | 株式会社富士通ゼネラル | Air conditioner |
| CN108195047A (en) * | 2017-12-01 | 2018-06-22 | 青岛海尔空调电子有限公司 | The noise control method and controller of multi-connected air conditioning system |
| CN108224689A (en) * | 2017-12-01 | 2018-06-29 | 青岛海尔空调电子有限公司 | The noise control method and controller of multi-connected air conditioning system |
| CN108224739A (en) * | 2017-12-01 | 2018-06-29 | 青岛海尔空调电子有限公司 | The noise control method of multi-connected air conditioning system |
| CN109631236A (en) * | 2018-12-14 | 2019-04-16 | 广东Tcl智能暖通设备有限公司 | Multi-connected air conditioner device and its Defrost method |
-
2019
- 2019-07-03 CN CN201910596989.XA patent/CN110410967B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09210492A (en) * | 1996-01-31 | 1997-08-12 | Matsushita Seiko Co Ltd | Electric expansion valve control device for multi-room type air conditioner |
| JP2002195629A (en) * | 2000-12-26 | 2002-07-10 | Toshiba Kyaria Kk | Air conditioner |
| CN1645007A (en) * | 2004-01-19 | 2005-07-27 | Lg电子株式会社 | Method for controlling multi-type air conditioner |
| KR20080036314A (en) * | 2006-10-23 | 2008-04-28 | 엘지전자 주식회사 | A reduction method of mode changeover noise for multi-airconditioner |
| CN102032648A (en) * | 2010-12-07 | 2011-04-27 | 海信（山东）空调有限公司 | Refrigerant flow control method for multi-connected air-conditioning system during heating |
| CN104501303A (en) * | 2014-11-24 | 2015-04-08 | 广东美的制冷设备有限公司 | Multi-split air conditioner and refrigerant circulation control method |
| CN104697120A (en) * | 2015-03-24 | 2015-06-10 | 广东美的暖通设备有限公司 | VRV (Varied Refrigerant Volume) system and noise reduction control method thereof |
| EP3130862A1 (en) * | 2015-08-11 | 2017-02-15 | Lg Electronics Inc. | Air conditioner and method of operating the same |
| CN105258275A (en) * | 2015-09-23 | 2016-01-20 | 广东美的暖通设备有限公司 | Multi-split system and low noise control method for electronic expansion valves of multi-split system |
| KR20170045526A (en) * | 2015-10-19 | 2017-04-27 | 엘지전자 주식회사 | Indoor unit of air conditioner |
| JP2017155952A (en) * | 2016-02-29 | 2017-09-07 | 株式会社富士通ゼネラル | Air conditioner |
| CN105698268A (en) * | 2016-03-23 | 2016-06-22 | 广东美的暖通设备有限公司 | Multi-online system and control method for heating and throttling element of multi-online system |
| CN106642843A (en) * | 2017-02-20 | 2017-05-10 | 珠海格力电器股份有限公司 | Air conditioning unit and operation control method and device thereof |
| CN107062580A (en) * | 2017-03-21 | 2017-08-18 | 珠海格力电器股份有限公司 | It is a kind of to reduce the control method and multi-gang air-conditioner of noise of indoor unit of air conditioner |
| CN108195047A (en) * | 2017-12-01 | 2018-06-22 | 青岛海尔空调电子有限公司 | The noise control method and controller of multi-connected air conditioning system |
| CN108224689A (en) * | 2017-12-01 | 2018-06-29 | 青岛海尔空调电子有限公司 | The noise control method and controller of multi-connected air conditioning system |
| CN108224739A (en) * | 2017-12-01 | 2018-06-29 | 青岛海尔空调电子有限公司 | The noise control method of multi-connected air conditioning system |
| CN109631236A (en) * | 2018-12-14 | 2019-04-16 | 广东Tcl智能暖通设备有限公司 | Multi-connected air conditioner device and its Defrost method |
Non-Patent Citations (1)
| Title |
|---|
| 刘耀华: "《施工技术及组织》", 30 July 1988 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023261A (en) * | 2019-12-17 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Method and device for reducing on-line noise of multi-connected unit and multi-connected unit |
| CN111023261B (en) * | 2019-12-17 | 2021-07-16 | 宁波奥克斯电气股份有限公司 | Method and device for reducing on-line noise of multi-connected unit and multi-connected unit |
| CN111503816A (en) * | 2020-04-29 | 2020-08-07 | 广东美的制冷设备有限公司 | Defrosting sound suppression method, storage medium, suppression device and air conditioner |
| CN111503816B (en) * | 2020-04-29 | 2021-10-26 | 广东美的制冷设备有限公司 | Defrosting sound suppression method, storage medium, suppression device and air conditioner |
| CN112344537A (en) * | 2020-11-17 | 2021-02-09 | 珠海格力电器股份有限公司 | Noise reduction control method and device for indoor unit of multi-split air conditioner and multi-split air conditioner |
| CN112344537B (en) * | 2020-11-17 | 2021-09-07 | 珠海格力电器股份有限公司 | Noise reduction control method and device for indoor unit of multi-split air conditioner and multi-split air conditioner |
| CN113639395A (en) * | 2021-08-05 | 2021-11-12 | 青岛海尔空调电子有限公司 | Control method and system of multi-split air conditioner and multi-split air conditioner |
| WO2023160065A1 (en) * | 2022-02-28 | 2023-08-31 | 青岛海尔空调电子有限公司 | Method for controlling multi-split air conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110410967B (en) | 2021-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110410967A (en) | The control method and multi-online air-conditioning system of multi-online air-conditioning system pipeline noise | |
| WO2018094844A1 (en) | Air conditioning system and control method | |
| CN105758065B (en) | A kind of air-conditioning system method for controlling oil return | |
| CN107289599B (en) | Device and method for detecting leakage amount of air conditioner refrigerant | |
| CN103512153B (en) | Air-conditioning system with enthalpy increased through vapor injection and control method thereof | |
| CN106871355B (en) | The control method and system of heat pump type air conditioner, the auxiliary heat of heat pump type air conditioner electricity | |
| CN109028494B (en) | Method and device for controlling flow of air conditioner refrigerant and computer storage medium | |
| CN110579010B (en) | Control method and control device for electronic expansion valve of multi-split internal machine and air conditioner | |
| CN202392954U (en) | Air conditioner | |
| CN105333656A (en) | Air replenishing and enthalpy increasing air conditioning system and air conditioner | |
| US10852041B2 (en) | HVAC system with electronically controlled expansion valve | |
| CN103196202A (en) | Air conditioner and control method thereof | |
| WO2015158109A1 (en) | Heat recovery multi-split air conditioner and control method therefor | |
| CN206300316U (en) | High cooling power frequency-conversion air-conditioning system and High cooling power convertible frequency air-conditioner | |
| CN110332648B (en) | Control method and device of electronic expansion valve and multi-connected air conditioning system | |
| CN110579039A (en) | control method of refrigerant circulating system | |
| CN104006445A (en) | Multi-linkage air conditioner and control method thereof | |
| CN107894045B (en) | Throttling control method and device of air conditioning system and air conditioner | |
| CN111520875B (en) | Control method and system for multi-split air conditioner | |
| CN109612021A (en) | A kind of multi-gang air conditioner abnormal sound control method and multi-gang air conditioner | |
| CN107560085A (en) | Compressor of air conditioner minimum running frequency control method and control device | |
| CN103210265A (en) | Expansion valve control system and method for air conditioning apparatus | |
| CN106403349A (en) | Double-cylinder variable-capacity air conditioning system and control method | |
| CN106152406B (en) | A kind of control method of air-conditioning system and its cold and hot pattern switching | |
| CN106546420B (en) | Valve body detection method and device, the air-conditioning system of air-conditioning model machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |