CN109163421A - A kind of energy management system of central air conditioner - Google Patents

A kind of energy management system of central air conditioner Download PDF

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Publication number
CN109163421A
CN109163421A CN201811316130.0A CN201811316130A CN109163421A CN 109163421 A CN109163421 A CN 109163421A CN 201811316130 A CN201811316130 A CN 201811316130A CN 109163421 A CN109163421 A CN 109163421A
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China
Prior art keywords
module
central air
energy
conditioning
normally
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Pending
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CN201811316130.0A
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Chinese (zh)
Inventor
黄峰青
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SHENZHEN DA ZHONG XIN YUAN ENERGY SAVING TECHNOLOGY Co Ltd
Original Assignee
SHENZHEN DA ZHONG XIN YUAN ENERGY SAVING TECHNOLOGY Co Ltd
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Priority to CN201811316130.0A priority Critical patent/CN109163421A/en
Publication of CN109163421A publication Critical patent/CN109163421A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control 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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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The present invention discloses a kind of energy management system of central air conditioner, conversion module in the energy management system of central air conditioner can convert electric energy for the energy that the fan of the normally-open first area central air-conditioning outdoor unit of the acquisition is discharged, power supply module can be according to the electric energy of the conversion, the information of normally-open first area central air-conditioning is needed to be powered with the energy for needing the fan using the normally-open central air-conditioning outdoor unit to be discharged come the second area central air-conditioning being powered to what the pool went out, the energy that can be realized the fan discharge to central air-conditioner outdoor unit efficiently uses.

Description

A kind of energy management system of central air conditioner
Technical field
The present invention relates to central air-conditioning technical field of energy management more particularly to a kind of energy management system of central air conditioner.
Background technique
Central air conditioner system is made of one or more cold and heat source systems and multiple air handling systems, which is different from Traditional cryogen formula air-conditioning, such as uniset air centralized processing have reached comfort requirement.Use liquid gasification freeze principle for Air handling system provides institute's chilling requirement, to offset the refrigeration duty of indoor environment;Heating system provides for air handling system Institute's calorific requirement, to offset indoor environment thermic load.
The outdoor unit of central air-conditioning is otherwise known as host, mainly includes compressor, condenser, throttling set.Central air-conditioning Outdoor unit effect when, complete the circulation of refrigerant, for when freezing, absorbed when introducing effect refrigerant indoors empty The heat of gas reduces room temperature, then in outdoor discharge heat, in cycles, has the function that indoor refrigeration, but existing It is obtained and is efficiently used in the energy that technology fails the fan discharge to central air-conditioner outdoor unit.
Summary of the invention
In view of this, can be realized it is an object of the invention to propose a kind of energy management system of central air conditioner to center The energy of the fan discharge of air-conditioner outdoor unit is efficiently used.
According to an aspect of the present invention, a kind of energy management system of central air conditioner is provided, comprising:
Plan as a whole module, opening module, obtain module, conversion module and power supply module;
The opening module is respectively connected with the pool module, the acquisition module, the conversion module with it is described Obtain module, the power supply module is respectively connected with;
The pool module, the fan for central air-conditioning outdoor unit each in the central air conditioner system according to acquirement are discharged Energy, plan as a whole to need the information of normally-open first area central air-conditioning out and need to utilize the normally-open center The energy of the fan discharge of air-conditioner outdoor unit is come the information for the second area central air-conditioning being powered;
The opening module, for the letter according to the normally-open first area central air-conditioning of the needs planned as a whole out Breath, the normally-open first area central air-conditioning;
The acquisition module, the fan for obtaining the normally-open first area central air-conditioning outdoor unit are arranged Energy out;
The conversion module, for by the normally-open first area central air-conditioning outdoor unit of the acquisition Fan discharge energy be converted into electric energy;
The power supply module, for the electric energy according to the conversion, normally-open to the needs planned as a whole out first The information of region central air-conditioning and need using the normally-open central air-conditioning outdoor unit fan be discharged energy come into The second area central air-conditioning of row power supply is powered.
Wherein, the pool module, comprising:
First, which plans as a whole module and second, plans as a whole module;
The first pool module is connected with the second pool module;
Described first plans as a whole module, the fan for central air-conditioning outdoor unit each in the central air conditioner system according to acquirement The energy of discharge plans as a whole the information for needing normally-open first area central air-conditioning out;
Described second plans as a whole module, the fan for central air-conditioning outdoor unit each in the central air conditioner system according to acquirement The energy of discharge plans as a whole that the energy being discharged using the fan of the normally-open central air-conditioning outdoor unit is needed to be supplied The information of the second area central air-conditioning of electricity.
Wherein, the opening module, comprising:
Relating module and switch module;
The relating module is connected with the switch module;
The relating module, for the letter according to the normally-open first area central air-conditioning of the needs planned as a whole out Breath, be associated with the first area central air-conditioning information and the switch module;
The switch module, for passing through the normally-open first area central hollow of switch control according to the association It adjusts.
Wherein, the acquisition module, comprising:
Energy harvesting module and energy summarizing module;
The energy harvesting module is connected with the energy summarizing module;
The corresponding central air-conditioning of one energy harvesting module, energy harvesting module are corresponding normally-open for obtaining The energy of the fan discharge of central air-conditioning outdoor unit;
Energy summarizing module, the corresponding normally-open central air-conditioning room for getting all energy harvesting modules The energy of the fan discharge of outer machine summarizes.
Wherein, the conversion module, comprising:
Electric energy conversion module and mode conversion module;
The electric energy conversion module is connected with the mode conversion module;
Electric energy conversion module: for by the normally-open first area central air-conditioning outdoor unit of the acquisition Fan discharge energy be converted into electric energy
Mode conversion module: for by the electric energy being converted to be converted into can powering mode electric energy.
Wherein, the power supply module, comprising:
Electric energy distribution module and electric energy power supply module;
The electric energy distribution module is connected with the electric energy power supply module;
The electric energy distribution module, it is normally-open to the needs planned as a whole out for the electric energy according to the conversion The information of first area central air-conditioning and the energy for needing to be discharged using the fan of the normally-open central air-conditioning outdoor unit Second area central air-conditioning to be powered carries out electric energy distribution;
The electric energy power supply module, for being distributed according to the electric energy, normally-open to the needs planned as a whole out the The information of one region central air-conditioning and need using the normally-open central air-conditioning outdoor unit fan discharge energy come The second area central air-conditioning being powered is powered.
Wherein, the power supply module, comprising:
Direct current supply module or Alternating Current Power Supply module.
Wherein, the opening module, comprising:
Active power switch or passive power source switch.
Wherein, the energy management system of central air conditioner, further includes:
The acquirement module being connected with the pool module;
The acquirement module, the energy that the fan for obtaining each central air-conditioning outdoor unit in central air conditioner system is discharged Amount.
Wherein, the acquirement module, comprising:
Energy obtains module and energy aggregation module;
The energy obtains module and is connected with the energy aggregation module;One energy obtains the corresponding center of module Air-conditioning, energy harvesting module are used to obtain the energy of the fan discharge of corresponding central air-conditioning outdoor unit in central air conditioner system;
Energy aggregation module, for all energy to be obtained to the fan for the corresponding central air-conditioning outdoor unit that module obtains The energy aggregation of discharge is together.
It can be found that above scheme, conversion module can be by the normally-open first area central hollow of the acquisition The energy of the fan discharge of outdoor unit is adjusted to be converted into electric energy, power supply module can go out the pool according to the electric energy of the conversion It needs the information of normally-open first area central air-conditioning and needs the wind using the normally-open central air-conditioning outdoor unit The energy of fan discharge is powered come the second area central air-conditioning being powered, and can be realized the wind to central air-conditioner outdoor unit The energy of fan discharge is efficiently used.
Further, above scheme, corresponding central air-conditioning outdoor unit in central air conditioner system can be obtained by obtaining module Fan discharge energy, and all energy is obtained into the fan discharge for the corresponding central air-conditioning outdoor unit that module obtains Energy aggregation together, can be realized the acquirement of the energy of the fan discharge to central air-conditioner outdoor unit and gather together.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of energy management system of central air conditioner of the present invention;
Fig. 2 is the structural schematic diagram of another embodiment of energy management system of central air conditioner of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is described in further detail.It is emphasized that following implement Example is merely to illustrate the present invention, but is not defined to the scope of the present invention.Likewise, following embodiment is only portion of the invention Point embodiment and not all embodiments, institute obtained by those of ordinary skill in the art without making creative efforts There are other embodiments, shall fall within the protection scope of the present invention.
The present invention provides a kind of energy management system of central air conditioner, can be realized the fan discharge to central air-conditioner outdoor unit Energy efficiently used.
Referring to Figure 1, Fig. 1 is the structural schematic diagram of one embodiment of energy management system of central air conditioner of the present invention.Such as Fig. 1 institute Show, which includes planning as a whole module 11, opening module 12, obtaining module 13,14 and of conversion module Power supply module 15.
The opening module 12 is respectively connected with the pool module 11, the acquisition module 13, which obtains with this Modulus block 13, the power supply module 15 are respectively connected with.
The pool module 11, the fan for central air-conditioning outdoor unit each in the central air conditioner system according to acquirement are discharged Energy, plan as a whole to need the information of normally-open first area central air-conditioning out and need to utilize the normally-open central hollow Adjust the energy of fan discharge of outdoor unit come the information for the second area central air-conditioning being powered.
The opening module 12, the information for needing normally-open first area central air-conditioning for being gone out according to the pool, The normally-open first area central air-conditioning.
The acquisition module 13, what the fan for obtaining the normally-open first area central air-conditioning outdoor unit was discharged Energy.
The conversion module 14, for by the fan of the normally-open first area central air-conditioning outdoor unit of the acquisition The energy of discharge is converted into electric energy.
The power supply module 15 needs normally-open first area to what the pool went out for the electric energy according to the conversion The information of central air-conditioning is powered with the energy for needing the fan using the normally-open central air-conditioning outdoor unit to be discharged Second area central air-conditioning be powered.
Optionally, the pool module 11 may include:
First, which plans as a whole module (not indicating in figure) and second, plans as a whole module (not indicating in figure);
The first pool module is connected with the second pool module;
The first pool module, the fan for central air-conditioning outdoor unit each in the central air conditioner system according to acquirement are arranged Energy out plans as a whole the information for needing normally-open first area central air-conditioning out;
The second pool module, the fan for central air-conditioning outdoor unit each in the central air conditioner system according to acquirement are arranged Energy out plans as a whole to need the energy being discharged using the fan of the normally-open central air-conditioning outdoor unit to be powered The information of second area central air-conditioning.
Optionally, the opening module 12 may include:
Relating module (not indicated in figure) and switch module (not indicated in figure);
The relating module is connected with the switch module;
The relating module, the information for needing normally-open first area central air-conditioning for being gone out according to the pool, is closed Join the information and the switch module of the first area central air-conditioning;
The switch module, for passing through the normally-open first area central air-conditioning of switch control according to the association.
Optionally, the acquisition module 13 may include:
Energy harvesting module (not indicated in figure) and energy summarizing module (not indicated in figure);
The energy harvesting module is connected with the energy summarizing module;
The corresponding central air-conditioning of one energy harvesting module, energy harvesting module are corresponding normally-open for obtaining The energy of the fan discharge of central air-conditioning outdoor unit;
Energy summarizing module, the corresponding normally-open central air-conditioning room for getting all energy harvesting modules The energy of the fan discharge of outer machine summarizes.
Optionally, the conversion module 14 may include:
Electric energy conversion module (not indicated in figure) and mode conversion module (not indicated in figure);
The electric energy conversion module is connected with the mode conversion module;
Electric energy conversion module: for by the fan of the normally-open first area central air-conditioning outdoor unit of the acquisition The energy of discharge is converted into electric energy
Mode conversion module: the electric energy for this to be converted to be converted into can powering mode electric energy.
Optionally, the power supply module 15 may include:
Electric energy distribution module (not indicated in figure) and electric energy power supply module (not indicated in figure);
The electric energy distribution module is connected with the electric energy power supply module;
The electric energy distribution module needs the firstth normally-open area to what the pool went out for the electric energy according to the conversion The information of domain central air-conditioning is supplied with the energy for needing the fan using the normally-open central air-conditioning outdoor unit to be discharged The second area central air-conditioning of electricity carries out electric energy distribution;
The electric energy power supply module needs normally-open first area to what the pool went out for distributing according to the electric energy The information of central air-conditioning is powered with the energy for needing the fan using the normally-open central air-conditioning outdoor unit to be discharged Second area central air-conditioning be powered.
Optionally, the power supply module 15 may include: direct current supply module or Alternating Current Power Supply module.
Optionally, the opening module 12 may include: active power switch or passive power source switch.
It can be found that in the present embodiment, conversion module can will be in the normally-open first area of the acquisition The energy of the fan discharge of centre air-conditioner outdoor unit is converted into electric energy, and power supply module can be according to the electric energy of the conversion, to the pool It the information of the normally-open first area central air-conditioning of needs out and needs to utilize the normally-open central air-conditioning outdoor unit Fan discharge energy be powered come the second area central air-conditioning being powered, can be realized to central air-conditioner outdoor unit Fan discharge energy efficiently used.
Fig. 2 is referred to, Fig. 2 is the structural schematic diagram of another embodiment of energy management system of central air conditioner of the present invention.Difference In a upper embodiment, energy management system of central air conditioner 20 described in the present embodiment further include: be connected with the pool module 11 Obtain module 21.
The acquirement module 21, the energy that the fan for obtaining each central air-conditioning outdoor unit in central air conditioner system is discharged Amount.
Optionally, the acquirement module 21 may include:
Energy obtains module (not indicating in figure) and energy aggregation module (not indicating in figure);
The energy obtains module and is connected with the energy aggregation module;One energy obtains the corresponding central hollow of module It adjusts, energy harvesting module is used to obtain the energy of the fan discharge of corresponding central air-conditioning outdoor unit in central air conditioner system;
Energy aggregation module, for all energy to be obtained to the fan for the corresponding central air-conditioning outdoor unit that module obtains The energy aggregation of discharge is together.
It can be found that in the present embodiment, corresponding central air-conditioning room in central air conditioner system can be obtained by obtaining module The energy of the fan discharge of outer machine, and the fan that all energy obtain the corresponding central air-conditioning outdoor unit that module obtains is arranged Energy aggregation out together, can be realized the acquirement to the energy of the fan of central air-conditioner outdoor unit discharge and be integrated into one It rises.
It can be found that above scheme, conversion module can be by the normally-open first area central hollow of the acquisition The energy of the fan discharge of outdoor unit is adjusted to be converted into electric energy, power supply module can go out the pool according to the electric energy of the conversion It needs the information of normally-open first area central air-conditioning and needs the wind using the normally-open central air-conditioning outdoor unit The energy of fan discharge is powered come the second area central air-conditioning being powered, and can be realized the wind to central air-conditioner outdoor unit The energy of fan discharge is efficiently used.
Further, above scheme, corresponding central air-conditioning outdoor unit in central air conditioner system can be obtained by obtaining module Fan discharge energy, and all energy is obtained into the fan discharge for the corresponding central air-conditioning outdoor unit that module obtains Energy aggregation together, can be realized the acquirement of the energy of the fan discharge to central air-conditioner outdoor unit and gather together.
In several embodiments provided by the present invention, it should be understood that disclosed system, device and method can To realize by another way.For example, device embodiments described above are only schematical, for example, module or The division of unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units Or component can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, institute Display or the mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, device or unit Indirect coupling or communication connection can be electrical property, mechanical or other forms.
Unit may or may not be physically separated as illustrated by the separation member, shown as a unit Component may or may not be physical unit, it can and it is in one place, or may be distributed over multiple networks On unit.It can select some or all of unit therein according to the actual needs to realize the mesh of present embodiment scheme 's.
In addition, each functional unit in each embodiment of the present invention can integrate in one processing unit, it can also To be that each unit physically exists alone, can also be integrated in one unit with two or more units.It is above-mentioned integrated Unit both can take the form of hardware realization, can also realize in the form of software functional units.
It, can if integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product To be stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention substantially or Say that all or part of the part that contributes to existing technology or the technical solution can embody in the form of software products Out, which is stored in a storage medium, including some instructions are used so that a computer equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute each implementation of the present invention The all or part of the steps of methods.And storage medium above-mentioned include: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. it is various It can store the medium of program code.
The foregoing is merely section Examples of the invention, are not intended to limit protection scope of the present invention, all utilizations Equivalent device made by description of the invention and accompanying drawing content or equivalent process transformation are applied directly or indirectly in other correlations Technical field, be included within the scope of the present invention.

Claims (10)

1. a kind of energy management system of central air conditioner characterized by comprising
Plan as a whole module, opening module, obtain module, conversion module and power supply module;
The opening module is respectively connected with the pool module, the acquisition module, the conversion module and the acquisition Module, the power supply module are respectively connected with;
The pool module, the energy that the fan for central air-conditioning outdoor unit each in the central air conditioner system according to acquirement is discharged Amount plans as a whole the information for needing normally-open first area central air-conditioning out and needs to utilize the normally-open central air-conditioning The energy of the fan discharge of outdoor unit is come the information for the second area central air-conditioning being powered;
The opening module, for the information according to the normally-open first area central air-conditioning of the needs planned as a whole out, just The normally open first area central air-conditioning;
The acquisition module, what the fan for obtaining the normally-open first area central air-conditioning outdoor unit was discharged Energy;
The conversion module, for by the wind of the normally-open first area central air-conditioning outdoor unit of the acquisition The energy of fan discharge is converted into electric energy;
The power supply module, for the electric energy according to the conversion, the first area normally-open to the needs planned as a whole out The information of central air-conditioning is supplied with the energy for needing the fan using the normally-open central air-conditioning outdoor unit to be discharged The second area central air-conditioning of electricity is powered.
2. energy management system of central air conditioner as described in claim 1, which is characterized in that the pool module, comprising:
First, which plans as a whole module and second, plans as a whole module;
The first pool module is connected with the second pool module;
Described first plans as a whole module, and the fan for central air-conditioning outdoor unit each in the central air conditioner system according to acquirement is discharged Energy, plan as a whole the information for needing normally-open first area central air-conditioning out;
Described second plans as a whole module, and the fan for central air-conditioning outdoor unit each in the central air conditioner system according to acquirement is discharged Energy, plan as a whole to need the energy being discharged using the fan of the normally-open central air-conditioning outdoor unit to be powered The information of second area central air-conditioning.
3. energy management system of central air conditioner as described in claim 1, which is characterized in that the opening module, comprising:
Relating module and switch module;
The relating module is connected with the switch module;
The relating module is closed for the information according to the normally-open first area central air-conditioning of the needs planned as a whole out Join the first area central air-conditioning information and the switch module;
The switch module, for passing through the normally-open first area central air-conditioning of switch control according to the association.
4. energy management system of central air conditioner as described in claim 1, which is characterized in that the acquisition module, comprising:
Energy harvesting module and energy summarizing module;
The energy harvesting module is connected with the energy summarizing module;
The corresponding central air-conditioning of one energy harvesting module, energy harvesting module is for obtaining corresponding normally-open center The energy of the fan discharge of air-conditioner outdoor unit;
Energy summarizing module, the corresponding normally-open central air-conditioning outdoor unit for getting all energy harvesting modules Fan discharge energy summarize.
5. energy management system of central air conditioner as described in claim 1, which is characterized in that the conversion module, comprising:
Electric energy conversion module and mode conversion module;
The electric energy conversion module is connected with the mode conversion module;
Electric energy conversion module: for by the wind of the normally-open first area central air-conditioning outdoor unit of the acquisition The energy of fan discharge is converted into electric energy
Mode conversion module: for by the electric energy being converted to be converted into can powering mode electric energy.
6. energy management system of central air conditioner as described in claim 1, which is characterized in that the power supply module, comprising:
Electric energy distribution module and electric energy power supply module;
The electric energy distribution module is connected with the electric energy power supply module;
The electric energy distribution module, for the electric energy according to the conversion, normally-open to the needs planned as a whole out first The information of region central air-conditioning and need using the normally-open central air-conditioning outdoor unit fan be discharged energy come into The second area central air-conditioning of row power supply carries out electric energy distribution;
The electric energy power supply module, for being distributed according to the electric energy, firstth area normally-open to the needs planned as a whole out The information of domain central air-conditioning is carried out with the energy for needing the fan using the normally-open central air-conditioning outdoor unit to be discharged The second area central air-conditioning of power supply is powered.
7. energy management system of central air conditioner as described in claim 1, which is characterized in that the power supply module, comprising:
Direct current supply module or Alternating Current Power Supply module.
8. energy management system of central air conditioner as described in claim 1, which is characterized in that the opening module, comprising:
Active power switch or passive power source switch.
9. energy management system of central air conditioner as described in claim 1, which is characterized in that central air-conditioning energy management system System, further includes:
The acquirement module being connected with the pool module;
The acquirement module, the energy that the fan for obtaining each central air-conditioning outdoor unit in central air conditioner system is discharged.
10. energy management system of central air conditioner as claimed in claim 9, which is characterized in that the acquirement module, comprising:
Energy obtains module and energy aggregation module;
The energy obtains module and is connected with the energy aggregation module;One energy obtains the corresponding central hollow of module It adjusts, energy harvesting module is used to obtain the energy of the fan discharge of corresponding central air-conditioning outdoor unit in central air conditioner system;
Energy aggregation module, the fan for all energy to be obtained to the corresponding central air-conditioning outdoor unit that module obtains are discharged Energy aggregation together.
CN201811316130.0A 2018-11-07 2018-11-07 A kind of energy management system of central air conditioner Pending CN109163421A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112856730A (en) * 2021-01-23 2021-05-28 苏州曼凯系统集成科技有限公司 Energy management system of central air conditioner

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000134870A (en) * 1998-10-23 2000-05-12 Setsuko Manabe Generator with fan for cooling outdoor machine of air- conditioning equipment
CN103438504A (en) * 2013-08-21 2013-12-11 苏州张扬能源科技有限公司 Energy saving control system for air conditioner
CN104734180A (en) * 2013-12-24 2015-06-24 珠海格力电器股份有限公司 Power supply control method and system
CN105650763A (en) * 2016-01-19 2016-06-08 珠海格力电器股份有限公司 Air conditioner outdoor machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000134870A (en) * 1998-10-23 2000-05-12 Setsuko Manabe Generator with fan for cooling outdoor machine of air- conditioning equipment
CN103438504A (en) * 2013-08-21 2013-12-11 苏州张扬能源科技有限公司 Energy saving control system for air conditioner
CN104734180A (en) * 2013-12-24 2015-06-24 珠海格力电器股份有限公司 Power supply control method and system
CN105650763A (en) * 2016-01-19 2016-06-08 珠海格力电器股份有限公司 Air conditioner outdoor machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112856730A (en) * 2021-01-23 2021-05-28 苏州曼凯系统集成科技有限公司 Energy management system of central air conditioner

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